| Kennametal Inc. Patent applications |
| Patent application number | Title | Published |
|---|
| 20120134872 | ABRASION RESISTANT STEEL, METHOD OF MANUFACTURING AN ABRASION RESISTANT STEEL AND ARTICLES MADE THEREFROM - An abrasion resistant steel consisting essentially of, in weight %: 0.20-0.30% carbon, 0.40-1.25% manganese, 0.05% maximum phosphorous, 0.01% maximum sulfur, 0.20-0.60% silicon, 0.50-1.70% chromium, 0.20-2.00% nickel, 0.07-0.60% molybdenum, 0.010-0.10% titanium, 0.001-0.10% boron, 0.015-0.10% aluminum, balance iron, and incidental impurities. The steel may be melted and cast into a steel ingot or slab, hot rolled to a desired plate thickness; austenitized at 1650-1700° F.; water quenched; and tempered at 350-450° F. The resulting steel plate may have a surface hardness of at least 440 HBW, a mid-thickness hardness of at least 90% of the surface hardness, and toughness in the transverse direction at −60° F. of at least 20 ft-lbs and at room temperature of at least 40 ft-lbs. | 05-31-2012 |
| 20120134759 | ROTATING CUTTING TOOL AND GUIDE INSERT THEREFOR - A rotating cutting tool includes a single or multi-piece support part having an end face and a circumferential wall, an interchangeable cutting insert provided at or about the end face, and at least one interchangeable guide insert coupled to the support part via a retaining means. The at least one interchangeable guide insert being free of cutting edges and protruding radially relative to the circumferential wall. The at least one interchangeable guide insert including a guide section which protrudes radially furthest outward. The guide section lying axially at the level of the retaining means and offset from the retaining means in the circumferential direction. | 05-31-2012 |
| 20120132322 | ABRASION RESISTANT STEEL, METHOD OF MANUFACTURING AN ABRASION RESISTANT STEEL AND ARTICLES MADE THEREFROM - An abrasion resistant steel consisting essentially of, in weight %: 0.20-0.30% carbon, 0.40-1.25% manganese, 0.05% maximum phosphorous, 0.01% maximum sulfur, 0.20-0.60% silicon, 0.50-1.70% chromium, 0.20-2.00% nickel, 0.07-0.60% molybdenum, 0.010-0.10% titanium, 0.001-0.10% boron, 0.015-0.10% aluminum, balance iron, and incidental impurities. The steel may be melted and cast into a steel ingot or slab, hot rolled to a desired plate thickness; austenitized at 1650-1700° F.; water quenched; and tempered at 350-450° F. The resulting steel plate may have a surface hardness of at least 440 HBW, a mid-thickness hardness of at least 90% of the surface hardness, and toughness in the transverse direction at −60° F. of at least 20 ft-lbs and at room temperature of at least 40 ft-lbs. | 05-31-2012 |
| 20120128955 | COATED CUTTING INSERT AND METHOD FOR MAKING THE SAME - A coated cutting insert for removing material from a workpiece that includes a substrate is disclosed. A wear-resistant coating on the substrate that includes an alumina layer and a Zr- or Hf-carbonitride outer layer deposited on the alumina layer. The Zr- or Hf-carbonitride outer layer is subjected to a post-coat wet blasting treatment. The wet blasting changes the stress condition of the exposed alumina coating layer from an initial tensile stress condition to a compressive stress condition. | 05-24-2012 |
| 20120126496 | Method for Making by Assembling a Tool to and in a Tool Holder, and the Tool and Told Holder, and the Assembled Tool and Tool Holder - A method for making by assembling a tool to and in a tool holder, and the tool and tool holder, and the assembled tool and tool holder. The tool is shrink-fitted into a cylindrical bore of the tool holder, and a shoulder of the tool abuts an abutment face of the tool holder. A structure, such as press, a screw, a draw bolt, or a cylinder, for example, is provided to apply an axial force to the cutting tool to force the tool shoulder against the abutment face of the tool holder. | 05-24-2012 |
| 20120126039 | Charge-Dispersing Alpha Prime-Beta Prime SiAlON - Industrial blast nozzles are disclosed which have liners made, at least in part, from a SiAlON-containing ceramic material which has a surface resistance of about 12 megaOhms or less and an erosion rate of about 1.9×10 | 05-24-2012 |
| 20120125694 | Matrix Powder System and Composite Materials and Articles Made Therefrom - The present invention includes a matrix powder system comprising one or more polycrystalline carbides, binderless carbides, or a combination thereof, a composite comprising the matrix powder system and a metal bond phase, a matrix bit body for a drill bit for oil and gas drilling made of this composite material, and a drill bit for oil and gas drilling comprising the matrix bit body and at least one cutter. The polycrystalline and/or binderless carbides may comprise carbides of W, Ti, V, Cr, Nb, Mo, Ta, Hf, Zr, or a combination thereof. The binderless carbides have less than 3 wt. % binder and the binderless and/or polycrystalline carbides may have a grain size of ≦15 μm and a hardness of ≧1900 HV (0.5 kgf). Additional ceramic components and/or metals may also be present in the matrix powder system. Alternatively, the composite material may be present on only a portion of the matrix bit body surface. | 05-24-2012 |
| 20120121352 | MULTI-FLUTE REAMER AND CUTTING INSERT THEREFOR - A multi-flute reamer includes a cutting portion having a forward end and a rearward end, and a chip flute with a chip gash opening, and a cutting insert mounted on the cutting portion. A leading edge is formed at an intersection between a top surface and a radially-outward side surface, and a front edge is formed at an intersection between the top surface and a forward side surface. The cutting insert includes a rounded lead cutting edge formed at the intersection between the leading edge and the front edge, and the top surface includes a chip breaker having a bottom surface formed with a radius, R. | 05-17-2012 |
| 20120121344 | Cutting Tool for a Machine Tool - The invention relates to a cutting tool for a machine tool, comprising a cutting head ( | 05-17-2012 |
| 20120099940 | TOOLHOLDER WITH EXTERNALLY-MOUNTED DYNAMIC ABSORBER - A toolholder includes a body portion having an exterior surface and a dynamic absorber mounted on the exterior surface of the body portion. The dynamic absorber includes a rigid support member, a cover member, and an absorber mass disposed within a cavity formed by the rigid support member and the cover member. A first resilient support member is disposed between the rigid support member and the absorber mass, and a second resilient support member is disposed between the cover member and the absorber mass. The dynamic absorber is tuned by moving the cover member relative to the rigid support member. A method of suppressing vibrations of the toolholder includes externally mounting the dynamic absorber on the exterior surface of the toolholder. | 04-26-2012 |
| 20120077058 | CORROSION AND WEAR-RESISTANT CLADDINGS - The present invention discloses corrosion and wear-resistant claddings comprising hard particles and an alloying addition dispersed in a nickel-based alloy matrix. The alloying addition comprises at least one of molybdenum or copper. The cladding does not include cobalt-bonded tungsten carbide particles. | 03-29-2012 |
| 20120076599 | METHOD AND DEVICE FOR THE PRECISION MACHINING OF CRANKSHAFTS AND CAMSHAFTS - The invention relates to a method and a device for the precision machining of crankshafts or camshafts to final size tolerances R | 03-29-2012 |
| 20120062017 | TWO PIECE TOOL HOLDER ASSEMBLY - A tool holder assembly on a rotating unit, e.g. drum of an earth strata cutting assembly, includes a base mountable to the rotating unit and a removable member mounted to the base and having a support block for carrying an earth strata cutting tool. The base includes an upright member. In one aspect, the removable member substantially encloses the upright member and the removable member includes a V-shaped surface engaging a V-shaped surface of the upright member for a close tolerance fit. In another aspect, the removable member partially encloses the upright member and the removable member includes a circular surface engaging a circular surface of the upright member for a close tolerance fit. | 03-15-2012 |
| 20120057943 | MILLING CUTTING INSERT - The invention relates to a milling cutting insert having a square or triangular shaped cutting face delimited in the plan view by a peripheral cutting edge having linear cutting edges ( | 03-08-2012 |
| 20120057942 | METAL CUTTING SYSTEM FOR EFFECTIVE COOLANT DELIVERY - A metal cutting system with a tool holder, a shim, an insert with a top depression, a top piece and a clamp. A rake face cooling channel for fluid delivery is formed between the top piece and the depression in the insert. A primary discharge slot at the end of the rake face cooling channel delivers fluid from below the cutting edge of the insert. A second cooling channel for delivery of fluid to the flank face is formed between the insert and the shim or is formed between the shim and the tool holder with a portion of the cooling channel passing through the shim. | 03-08-2012 |
| 20120040183 | Cemented Carbide Compositions Having Cobalt-Silicon Alloy Binder - Cemented carbide compositions consisting essentially of tungsten carbide particles and a cobalt-silicon alloy binder are disclosed. Also disclosed are methods of making the cemented carbide compositions and articles which incorporate the cemented carbide compositions. Pellets having the cemented carbide compositions may be used in the uncrushed or crushed form. The cemented carbide compositions may also be used as metal cutting tool inserts, road construction tool inserts, oil or gas drill inserts, mining tool inserts, and as substrates for ultrahard materials, such as PCD, PCBN, and TSP. | 02-16-2012 |
| 20120039677 | CONTOUR END MILL - A contour end mill includes a shank portion and a cutting portion. The cutting portion defines a cutting diameter, a corner radius and a major radius. The major radius is greater than one-half of the cutting diameter. As a result, the end mill produces a much smoother finish and a reduced chip thickness. | 02-16-2012 |
| 20120034043 | CUTTING TOOL WITH UNEQUAL FLUTE SPACING - A cutting tool having a shaft with a longitudinal axis, wherein the cutting tool includes a first flute extending about the longitudinal shaft along a helix angle and a first cutting edge adjacent the first flute. The cutting tool also includes a second flute extending about the longitudinal shaft along a helix angle and a second cutting edge adjacent a second flute. The cutting tool further includes a third flute extending about the longitudinal shaft along a helix angle and a third cutting edge adjacent the third flute. The first cutting edge, the second cutting edge, and the third cutting edge are unequally angularly spaced from each other. | 02-09-2012 |
| 20120024607 | Dust Collecting Device For A Roof Tool - A dust collecting device disposed circumferentially around a roof tool and in association with a roof drill bit and slidable thereon for collecting and removing dust generated during a dry drilling operation. The dust collecting device comprises a cylinder member, a bushing, and a mounting assembly comprising a top washer, a rubber insert, and a bottom washer. Another aspect of the invention provides a dust collecting device comprising a cylinder member, a bushing, and a mounting assembly comprising a disk and clips. The rubber insert and the clips resist movement of the dust collecting device along the drill steel of the roof tool during the drilling operation. | 02-02-2012 |
| 20120014758 | INDEXABLE CUTTING INSERT FOR A SIDE MILLING CUTTER - An indexable cutting insert ( | 01-19-2012 |
| 20120013081 | CLAMPING AND RELEASING ASSEMBLY - A clamping and releasing mechanism includes a clamping and releasing assembly and a control member configured for effecting operation of the assembly. The assembly includes a collet, a biasing member, a rod member, and a retainer affixed to the rod member such that movement of the rod member relative to the collet causes a variation in the biasing force exerted by the biasing member. When the control member is moved in a first direction, the control member causes the rod member to move in a first direction relative to the collet and move the first part away from the second part. When the control member is moved in an opposite direction, the biasing member causes the rod member to move in an opposite direction and move the first part toward the second part. The mechanism is made of a few simple components, requires little maintenance and is self-contained. | 01-19-2012 |
| 20120012229 | INDEXABLE STUMP CUTTER TOOTH - A stump cutter assembly that has a driven wheel with first and wheel side surfaces, and a first stump cutter tooth assembly operatively attaches to the first wheel side surface and a second stump cutter tooth assembly operatively attaches to the second wheel side surface. The first stump cutter tooth assembly includes a first stump cutter tooth and a first bi-directional pocket member that non-rotatably retains the first stump cutter tooth. The second stump cutter tooth assembly includes a second stump cutter tooth and a second bi-directional pocket member that non-rotatably retains the second stump cutter tooth. The first stump cutter tooth assembly is in general transverse alignment with the second stump cutter tooth assembly. | 01-19-2012 |
| 20120009027 | Milling Tool Assembly Having a Replaceable Cutter - A milling tool assembly has a replaceable cutter and a reusable shank connected to the cutter with a detachable joint. The joint may be, for example, a threaded connection. An intermediate alignment sleeve made of an elastic or semi-elastic material, is positioned between the cutter and the shank about the axis of rotation of the shank. | 01-12-2012 |
| 20120003493 | Composite Component and Method for the Production Thereof - The invention relates to a composite component ( | 01-05-2012 |
| 20120003488 | Carbide Pellets for Wear Resistant Applications - Carbide pellets including relatively small amounts of metallic binder are produced by steps of pressing, comminuting, shaping and sintering. The carbide pellets may be used as wear resistant hard facing materials that are applied to various types of tools. The carbide pellets provide improved mechanical properties such as hardness and abrasiveness while maintaining required levels of toughness and strength. | 01-05-2012 |
| 20120003443 | METHOD AND APPARATUS USING A SPLIT CASE DIE TO PRESS A PART AND THE PART PRODUCED THEREFROM - A split case die is used to press powder, wherein the die parts are moveable in a direction non-parallel to the direction of the pressing axis. The part produced by such a split case die has an external surface with parting line marks oriented in a direction non-perpendicular to the pressing axis. | 01-05-2012 |
| 20120003425 | TiAIN COATINGS FOR GLASS MOLDING DIES AND TOOLING - A system for precision glass molding comprising a substrate and a coating. The substrate has less than 1.2 wt. % minor constituents. The coating comprises TiAl | 01-05-2012 |
| 20110318117 | Cutting Insert And Holder For Rotating Applications - A cutting insert rotated about an axis may be utilized during a metal working operation and applied against the rotating workpiece to enhance tool performance. Coolant may be provided through the central bore of the cutting insert utilizing bypass ports around the threaded hold-down bolts. Additionally, the cutting insert may be held within the toolholder pocket utilizing hoop walls which follow a serpentine path to provide flexibility. Finally, relative rotation of the cutting insert with respect to the toolholder body may be prevented utilizing a pair of protrusions within the toolholder pocket which engage a pair of recesses within a side of the cutting insert. | 12-29-2011 |
| 20110311820 | HARDFACING COMPOSITION AND ARTICLE HAVING HARDFACING DEPOSIT - A hardfacing composition ( | 12-22-2011 |
| 20110311325 | METAL CUTTING SYSTEM FOR EFFECTIVE COOLANT DELIVERY - A metal cutting system with a tool holder, a shim, an insert with a top depression, a top piece and a clamp. A rake face cooling channel for fluid delivery is formed between the top piece and the depression in the insert. A primary discharge slot at the end of the rake face cooling channel delivers fluid from below the cutting edge of the insert. A second cooling channel for delivery of fluid to the flank face is formed between the insert and the shim or is formed between the shim and the tool holder with a portion of the cooling channel passing through the shim. | 12-22-2011 |
| 20110311324 | METAL CUTTING SYSTEM FOR EFFECTIVE COOLANT DELIVERY - A metal cutting system with a tool holder, a shim, an insert with a top depression, a top piece and a clamp. A rake face cooling channel for fluid delivery is formed between the top piece and the depression in the insert. A primary discharge slot at the end of the rake face cooling channel delivers fluid from below the cutting edge of the insert. A second cooling channel for delivery of fluid to the flank face is formed between the insert and the shim or is formed between the shim and the tool holder with a portion of the cooling channel passing through the shim. | 12-22-2011 |
| 20110309588 | DEVICE FOR FASTENING A RING-SHAPED MILLING TOOL CARRIER - A device for attaching a ring-shaped milling tool carrier ( | 12-22-2011 |
| 20110303058 | MECHANICAL-ACTIVATED ID GROOVING TOOL - A mechanical-activated inner diameter (ID) grooving tool includes a shank, a body, a stopper, an insert cartridge, a bushing and an end cap. The shank includes a tapered piston having an extension surface and a retraction surface. The insert cartridge includes a tapered piston pocket having a piston-engaging face and a piston-retracting face. Axial movement of the tapered piston in a first direction causes the extension surface of the tapered piston into contact with the piston-engaging face of the insert cartridge, thereby causing the insert cartridge to move in a radially outward direction. Axial movement of the tapered piston in a second, opposite direction causes the retraction surface of the tapered piston into contact with the piston-retracting face of the insert cartridge, thereby causing the insert cartridge to move in a radially inward direction. | 12-15-2011 |
| 20110303057 | PRESSURE-ACTIVATED ID GROOVING TOOL - A pressure-activated ID grooving tool includes a tool body having a channel, a front cross slide slot, a rear cross slide slot projecting, and two legs extending from a piston bore. A piston is disposed within the piston bore. A slide arm has an extension face and a retraction face. A cross slide has a cross slide pocket with a slide engaging face immediately opposing the extension face of the slide arm and a slide retracting face immediately opposing the retraction face of the slide arm. When fluid within the channel and the piston bore is pressurized, the piston moves toward the plunger, which in turn causes the extension face of the slide arm into contact with slide engaging face of the cross slide to cause the cross slide to move in an outward radial direction, thereby pushing the insert into contact with a workpiece. | 12-15-2011 |
| 20110293909 | Multilayer Nitride Hard Coatings - A wear resistant multilayer nitride hard coating for substrates. The hard coating includes a first layer of titanium aluminum nitride and a second layer comprising a plurality of sublayer groups. Each sublayer group includes a first sublayer of titanium silicon nitride and a second sublayer of titanium aluminum nitride. The composition of the titanium aluminum nitride, both in the first layer and in the sublayer groups, is (Ti | 12-01-2011 |
| 20110293383 | INDEXABLE INSERT - An indexable insert having two main faces ( | 12-01-2011 |
| 20110250028 | TOOL HEAD FOR A ROTATING TOOL - A tool head ( | 10-13-2011 |
| 20110243671 | HOB - A hob having a helically curved tooth profile. A plurality of segments covering only a limited angle range are attached to a base body for forming the tooth profile. The segments abut each other in the circumferential direction of the base body, and the segments form rows in the direction of the longitudinal axis of the base body. The segments each comprise a segment foot and a segment profile disposed diagonally thereon. The diagonal arrangement of the segment profile forms a coiled slope of the helically curved tooth profile in each segment and the tooth profile can be built up simply by arranging the segments in rows in the circumferential and the longitudinal directions. | 10-06-2011 |
| 20110241409 | Rotatable Cutting Tool With Head Portion Having Elongated Projections - A rotatable cutting tool for use in impinging earth strata wherein the rotatable cutting tool comprises a cutting tool body and a hard tip affixed to the cutting tool body. The cutting tool body includes an axial forward end for receiving the hard tip and an axial rearward end, a head portion axially rearward of the axial forward end, a collar portion axially rearward of the head portion, and a shank portion axially rearward of the collar portion and axially forward of the axial rearward end. The head portion includes a plurality of elongated projections extending radially thereabout, each of the elongated projections including a first tapered side and a second tapered side. The first tapered side of each of the elongated projections adjoins the second tapered side of an adjacent elongated projection at a surface of the head portion. | 10-06-2011 |
| 20110233987 | Rotatable Cutting Tool And Tool Holder Assembly - An assembly of a rotatable cutting tool and a tool holder is provided. The rotatable cutting tool includes a cutting tool body having a head portion at an axial forward end and a collar portion axially rearward of the head portion, and a shank portion axially rearward of the collar portion. Also included is a cap member positioned on the cutting tool body wherein the cap member has a base portion and a hard cutting tip affixed to the base portion. The tool holder includes a tool holder body containing a bore having a forward end and a rearward end. The rotatable cutting tool is rotatably retained in the bore of the tool holder body. In one aspect, the shank portion of the rotatable cutting tool is received in the bore of the tool holder body and means for lubricating the shank portion of the cutting tool body is provided. In another aspect, means for securing the cap member to the head portion is provided, for example magnetically securing the cap member to the head portion. In another aspect, means for preventing rotation of the cap member relative to the head portion is also provided. | 09-29-2011 |
| 20110229277 | CUTTING INSERT WITH INTERNAL COOLANT DELIVERY AND SURFACE FEATURE FOR ENHANCED COOLANT FLOW - A metalcutting insert that is useful in chipforming and material removal from a workpiece. The metalcutting insert includes a metalcutting insert body, which includes a cutting edge having at least one discrete cutting location. The metalcutting insert body further contains a distinct interior coolant passage communicating with the discrete cutting location. The distinct interior coolant passage has a coolant passage inlet defining a coolant passage inlet cross-sectional area, a coolant passage discharge defining a coolant passage discharge cross-sectional area, and an axial coolant passage length. The distinct interior coolant passage defines a coolant flow cross-sectional area along the axial coolant passage length thereof. The metalcutting insert further includes a plurality of surface features for enhancing coolant flow to the cutting edge. | 09-22-2011 |
| 20110211921 | Coupler for a Quick Change Insert Rotary Cutting Tool - A coupler for a quick change rotary cutting tool assembly allowing a cutter to be quickly and releasably coupled to a shank wherein the coupler has a cylindrical portion with a threaded portion to engage the shank and a portion with a transverse groove with undercut walls to form recesses. The cutter has an anchor made as a disk with parallel flats which engage the recesses of the cylindrical portion to releasably secure the cutter to the shank. | 09-01-2011 |
| 20110195834 | Wear Resistant Two-Phase Binderless Tungsten Carbide and Method of Making Same - An ultrafine grain two-phase binderless tungsten carbide material is disclosed. The material contains, in weight percent, ditungsten carbide in the range of about 1 to about 10 percent, up to about 1.0 percent vanadium carbide and/or chromium carbide, up to about 0.2 percent cobalt, and the balance tungsten carbide, wherein the wear resistant material has a hardness of at least about 2,900 kg/mm | 08-11-2011 |
| 20110188951 | Tool Cassette - A tool cassette having a receptacle for an interchangeable cutting insert, wherein at least one setting element for setting the position of the tool cassette with respect to a seat for the cassette of a carrier tool is provided on the tool cassette. | 08-04-2011 |
| 20110182678 | SLOTTING CUTTER WITH CANTILEVERED MEMBER - A slotting cutter includes a disc-like cutter body rotatable in a predetermined direction on a central axis perpendicular to a plane of the cutter body. A plurality of cutting insert receiving pockets and a corresponding number of wedge receiving pockets are formed about a perimeter of the body. A cutting insert is replaceably mounted in each insert receiving pocket of the cutter body, and a clamping wedge is replaceably mounted in each wedge receiving pocket of the cutter body. A cantilevered member is disposed between each insert receiving pocket and a respective wedge receiving pocket to securely hold the cutting insert in the cutter body. | 07-28-2011 |
| 20110175300 | Hydraulic Expansion Chuck - The invention relates to a hydraulic expansion chuck having an end on the tool side; and an end on the machine side. A shaft is disposed on the end on the machine side for clamping the expansion chuck in a machine tool. An expanding bushing is disposed on the end on the tool side and surrounded by a pressure chamber and can be radially deformed for clamping a tool under the action of a pressure medium received in the pressure chamber. | 07-21-2011 |
| 20110174121 | TOOLHOLDER ASSEMBLY - A toolholder assembly for releasably holding a toolholder includes a toolholder having a tubular shank with at least two perforations; a tool support member; a canister disposed within the tool support member and including at least two apertures; a lock rod movable within the tool support member in a reciprocating motion for pulling the toolholder into a locked position and for releasing the toolholder to an unlocked position; and at least two locking elements disposed within the spaced apertures of the canister and engaging the lock rod so that movement of the lock rod causes the locking elements to extend radially outward from the canister. The circumferentially spaced perforations of the tubular shank each include a primary cylindrical wall and a forward facing contact surface at least partially defined by a depression having a converging wall surface non-concentric with the primary cylindrical wall of the perforations. | 07-21-2011 |
| 20110167969 | TOOLHOLDER ASSEMBLY - An apparatus for releasably holding a tubular toolholder shank includes a tool support member; a canister disposed within the tool support member; a lock rod movable within the tool support member in a reciprocating motion for pulling the tubular toolholder shank into a locked position and for releasing the tubular toolholder shank to an unlocked position; and at least two locking elements engaging the lock rod so that movement of the lock rod causes the locking elements to extend outward to engage the tubular toolholder shank. The lock rod includes a relief cavity extending rearward from a forward end of the lock rod. The lock rod has a maximum outer diameter and the relief cavity has a maximum diameter. A ratio of the maximum diameter of the relief cavity to the maximum outer diameter of the front portion of the lock rod is greater than approximately 1 to 4. | 07-14-2011 |
| 20110164934 | ROUND CUTTING INSERT WITH ASYMMETRIC CHIPBREAKER FEATURE - A round cutting insert includes a top surface, a clearance side surface and a bottom surface. The top surface includes an asymmetric chipbreaker feature adjacent a cutting edge that includes a finishing portion, a roughing portion, and a transition portion. The asymmetric chipbreaker feature includes a first rake face extending from the cutting edge, a second rake face between a bottom face and the first rake face, and a back face between a central island and the bottom face. The second rake face and the back face are sinusoidal waveforms with different periods to cause the distances from the cutting edge to the second rake face and back face to vary. The first and second rake faces are formed at different rake angles to provide effective chip control during machining operations. | 07-07-2011 |
| 20110162756 | INDEXABLE STUMP CUTTER TOOTH - A bi-directional pocket member that retains a stump cutter tooth. The pocket affixes to a selected wheel side surface of a driven wheel, which has a first wheel side surface and a second wheel side surface. The pocket member has a pocket body, which has a first pocket edge, a second pocket edge, a first pocket side surface, a second pocket side surface, a radial inward pocket portion and an integral radial outward pocket portion. The radial inward pocket portion contains attachment bores used to operatively attach the pocket member to the driven wheel. The radial outward portion contains a retention bore used to retain the stump cutter tooth. | 07-07-2011 |
| 20110150593 | Clamping Unit With Canister Sleeve Retention Device - A clamping unit for releasably holding a tubular toolholder shank has a base member with a canister sleeve mounted therein. To secure the canister sleeve within the base member and to minimize movement caused by tolerances, retention bolts are threadably mated within the base member to engage a slot within the canister, wherein the relationship between the retention bolt and the slot is such that the retention bolt is intentionally misaligned, so that when engaged with the canister slot, the retention blot resiliently deflects and provides both an axial force and a lateral force upon a canister sleeve. | 06-23-2011 |
| 20110150589 | Drill - Drill with a straight chucking groove, with a convexly curved main cutting edge with, adjacent to the main cutting edge, a convexly designed region of groove base and with, adjacent to the convexly designed region of the groove base, a concavely designed groove base or a concavely curved main cutting edge with, adjacent to the main cutting edge, a concavely designed groove base with, adjacent to the concavely design region of the groove base, a convexly design region of the groove base. | 06-23-2011 |
| 20110135413 | Reamer - A reamer for the precision machining of a drilled hole, having a plurality of cutting bars which are separated from one another by chip grooves and extend in the longitudinal direction of the tool, wherein a plurality of chip divider grooves which run in the transverse direction of the tool and divide each cutting bar into cutting segments are provided. | 06-09-2011 |
| 20110129309 | CUTTING INSERT AND SHIM FOR HEAVY MACHINING OPERATIONS - A combination of a cutting insert and a shim. The cutting insert and shim have two opposing end surfaces with two identical opposing major side surfaces and two identical opposing minor side surfaces extending between the minor side surfaces. Each end surface of the insert has two lowered abutment members, each having a shim abutment surface for contacting the shim. One end surface of the shim has two raised abutment members, each having an insert abutment surface for contacting the insert. The abutment surfaces contact each other in an area where high cutting forces occur so as to help distribute the loads encountered in the cutting operation, as well as provide protection of the insert pocket in case of insert failure. | 06-02-2011 |
| 20110123280 | End Mill Cutter - End mill cutter having a plurality of cutting edges distributed over the circumference of the mill cutter, having a flank which is adjacent to the respective cutting edge in the circumferential direction and a supporting surface which adjoins the flank on that side which faces away from the cutting edge in the circumferential direction. | 05-26-2011 |
| 20110123255 | TOOLHOLDER CONNECTOR AND ASSOCIATED SYSTEM - A toolholder connector having one threaded end and one end with a male quick change portion is threadingly engaged with a first toolholder having a threaded bore. The quick change connector also has a male quick change portion that is engaged within a side activated receiver of a second toolholder. Prior to activating the receiver, an alignment pin associated with the first toolholder is lined up with alignment slot associated with the second toolholder such that when the two are brought together, a pre-determined radial alignment will be retained. | 05-26-2011 |
| 20110121523 | TOOLHOLDER SECONDARY RETENTION SYSTEM - A toolholder support member for retaining the shank of a toolholder has a bore to accept the toolholder shank. A retention member extends through the bore wall to engage a perforation extending through the shank or indentation within the shank, thereby retaining the shank within the receiving bore. The retention member is biased to provide resistance for insertion or extraction of the shank within the receiving bore. Furthermore, the retention bore is angled relative to the longitudinal axis of the receiving bore so that the force required to insert the toolholder within the receiving bore is minimized, while the force required to extract the toolholder from the receiving bore is maximized. | 05-26-2011 |
| 20110116878 | Indexable Cutting Insert - The invention relates to a cutting insert having two working surfaces facing away from each other and having a through hole extending between the working surfaces for receiving a fastening bolt, having a peripheral cutter rim having a cutting edge on each working surface and a central recess surrounded annularly by the cutter rim, having a number of segment-like molded parts corresponding to the number of different cutter positions of a working surface, for positioning the cutting insert in the corresponding cutting position. | 05-19-2011 |
| 20110114774 | Impact Crusher Wear Components Including Wear Resistant Inserts Bonded Therein - A wear component for use in an impact crusher having a forward depression on the face of the wear component which is exposed to aggregate wear. Wear resistant inserts, for example cemented tungsten carbide inserts, are bonded within the forward depression to prevent rapid abrasion of the wear component. Joints are formed between wear resistant inserts and joints are also formed between wear resistant inserts and the wear component. Bonding material fills the joints to further secure the wear resistant inserts and to prevent crack propagation. | 05-19-2011 |
| 20110114479 | Composite Material Useful in Electrolytic Aluminum Production Cells - Composite materials comprising titanium diboride and boron nitride that are used to line electrolytic aluminum production cells are disclosed. The composite materials may be used to line the side walls and/or bottom wall of the cell. The ratio of titanium diboride to boron nitride may be controlled in order to provide the desired level of electrical conductivity depending upon the particular region of the cell in which the liner plate is installed. The titanium diboride/boron nitride composite materials exhibit desirable aluminum wetting behavior, and are capable of withstanding exposure to molten cryolite, molten aluminum and oxygen at elevated temperatures during operation of the electrolytic aluminum production cells. | 05-19-2011 |
| 20110111945 | INERT HIGH HARDNESS MATERIAL FOR TOOL LENS PRODUCTION IN IMAGING APPLICATIONS - A tungsten carbide material for use in precision glass molding applications having 6.06-6.13 wt. % carbon, 0.20-0.55 wt. % grain growth inhibitor, less than 0.25 wt. % binder, less than 0.6% wt. % impurities, and balance being tungsten. The tungsten carbide material has a nominal grain size of less than 0.5 microns. | 05-12-2011 |
| 20110107679 | COATED CUTTING INSERT AND METHOD FOR MAKING THE SAME - A coated cutting insert for removing material from a workpiece that includes a substrate is disclosed. A wear-resistant coating on the substrate that includes an α-alumina layer and a Zr— or Hf— carbonitride outer layer deposited on the α-alumina layer. The Zr— or Hf— carbonitride outer layer is subjected to a post-coat wet blasting treatment. The wet blasting changes the stress condition of the exposed alumina coating layer from an initial tensile stress condition to a compressive stress condition. | 05-12-2011 |
| 20110106105 | Chip-Removing Tool - A cutting insert has the geometry of a tetrahedron with triangle base areas wherein each triangle base area has a tetrahedral frustum as a clamping body for fixing the cutting insert in a tool seat of a carrier tool. Additionally, a tool seat for the cutting insert includes clamping jaws to secure the cutting insert. | 05-05-2011 |
| 20110103908 | Pull Reamer - In order to allow high-precision machining of the inner surface of a pipe using little machining time, the draw broach comprises a cutting part ( | 05-05-2011 |
| 20110103905 | Round Cutting Insert With Anti-Rotation Feature - A round cutting insert with an anti-rotation feature. The round cutting insert includes a plurality of projections formed on a first surface and another plurality of projections formed on an opposing surface. The round cutting insert is reversible and indexable. The round cutting insert is removably received in an insert receiving pocket in a tool body wherein the insert receiving pocket includes a plurality of dimples for receiving one of the plurality of first projections or the plurality of second projections. This arrangement prevents rotation of the round cutting insert while mounted in the insert receiving pocket. | 05-05-2011 |
| 20110103902 | Toolholder Coupling For High Pressure Coolant - A coolant coupling system for coupling a toolholder to a toolholder support member, wherein the shank of the toolholder is secured within the bore of the toolholder support member with an interference fit and a coolant channel extends through the toolholder support member to the toolholder passing through the region of the interference fit to provide a high pressure seal for the coolant passageway between the toolholder and the toolholder support member. | 05-05-2011 |
| 20110097976 | TWIST DRILL AND METHOD FOR PRODUCING A TWIST DRILL WHICH METHOD INCLUDES FORMING A FLUTE OF A TWIST DRILL - There is now provided a twist drill and a method for producing a twist drill which method includes forming a flute of a twist drill. The drill has drill material and a tip portion with a cutting lip. The drill has a land structure and a flute to remove chip residue. The land structure has a flute wall and a cutting edge structure that is disposed longitudinally along the flute wall. The cutting edge structure has a first portion at the drill tip portion and a second portion disposed away from the drill tip portion. The flute wall extends further into the land structure at the second portion of the cutting edge structure than at the tip portion to provide a greater amount of drill material at the tip portion than at the second portion of the cutting edge structure. The flute wall extends further into the land structure at the second portion of the cutting edge structure than at the tip portion to provide a greater flute volume per length at the second portion of the cutting edge structure than at the drill tip portion. The method provides for forming a drill with a grinding tool to form different angular transitions of the cutting edge structure. | 04-28-2011 |
| 20110097168 | Lathe Tool, In Particular Boring Tool - A boring tool has a receiving part implemented as a borer body and a front part implemented as a borer head, which extend along a central axis and can be removably fastened to one another via driver connection. The driver connection has at least two coupling pairs which are separate from one another and are disposed eccentrically relative to the central axis. Each coupling pair is formed by interlocking coupling elements, namely a receiving pocket and a driver pin. The coupling elements have an asymmetrical cross-sectional area and widen with increasing distance to the central axis. Through this design, a reliable transmission of high torques is achieved with lower strains of the borer body in the area of the driver connection. Simultaneously, an automatic centering of the two tool parts to one another is performed. | 04-28-2011 |
| 20110097162 | Three-Dimensional Surface Shaping of Rotary Cutting Tool Edges with Lasers - A method for forming the cutting edge and adjacent contoured surface area of rotary cutting tools utilizing a laser to remove material from the cutting end of the tool to create a predetermined point-by-point geometry is disclosed. Relatively complex surface and edge geometries may be formed by directing a laser beam toward the cutting end of the tool at an angle having a component that is normal to the surface of the cutting end. The laser beam is directed in multiple passes across the surface of the cutting end to remove material and form the desired cutting edge and adjacent three-dimensional contoured surface geometry. | 04-28-2011 |
| 20110089747 | RETENTION ASSEMBLY FOR CUTTING BIT - A cutting bit retention assembly ( | 04-21-2011 |
| 20110089746 | ROTATABLE CUTTING TOOL-TOOL HOLDER-BASE ASSEMBLY - A cutting tool holder-base assembly ( | 04-21-2011 |
| 20110085871 | Coupling Mechanism For Connecting A Toolholder Assembly And A Machine Tool - A coupling mechanism for connecting a toolholder assembly and a machine tool. The coupling mechanism includes a first component configured for removably securing the toolholder assembly to the machine tool, wherein the first component includes an axial forward end defining a bore that extends axially to an axial rearward end of the first component to form an inner surface of the first component, the first component having a plurality of apertures disposed circumferentially thereabout that extend from an outer surface of the first component to the inner surface of the first component. The coupling mechanism further includes a second component integrally formed with the first component and configured for interacting with the machine tool to position the toolholder assembly relative to the machine tool, wherein the second component defines a positioning groove on an outer surface thereof. | 04-14-2011 |
| 20110081539 | Aluminum Titanium Nitride Coating and Method of Making Same - Hard coatings and methods of making the hard coatings comprising aluminum titanium nitride which are usable on cutting tools are disclosed. The coatings include at least one aluminum titanium nitride layer having between about 0 and about 15 weight percent hexagonal phase and a composition of (Al | 04-07-2011 |
| 20110080037 | Rotatable Cutting Tool With Through Coolant - A rotatable cutting tool for use in impinging earth strata such as, for example, asphaltic roadway material, coal deposits, mineral formations and the like. The rotatable cutting tool includes a cutting tool body having a through coolant channel and a two-piece head portion, e.g., the head portion of the cutting tool body having a base portion and a nose portion with a hard tip cutting insert affixed to the nose portion. The through coolant provides for cooling the hard tip cutting insert during operation of the cutting tool. In addition, the through coolant also provides for suppressing dust created by the rotatable cutting tool during operation. | 04-07-2011 |
| 20110076106 | CUTTING TOOL WITH ERROR PROOFING FEATURE - A cutting tool includes a body having a forward end and a rearward end. The forward end includes an insert-receiving pocket with a threaded hole having a center axis. The cutting tool further includes a cutting insert with a countersunk bore with a center axis. The cutting tool includes an error proofing feature for preventing the cutting insert to be properly mounted in an insert-receiving pocket when an offset distance between the center axis of the threaded hole of the insert-receiving pocket and the center axis of the countersunk bore of the cutting insert is greater than a predetermined percentage of the outer diameter of the threaded screw. | 03-31-2011 |
| 20110068616 | ROTATABLE CUTTING TOOL WITH HARD CUTTING MEMBER - A rotatable cutting tool that is for impingement upon a substrate and adapted to be rotatably retained within the bore of a holder. The rotatable cutting tool includes an elongate cutting tool body, which has an axial forward end and an axial rearward end with a socket at the axial forward end thereof. The rotatable cutting tool further has a hard cutting member, which is affixed to the cutting tool body within the socket. The hard cutting member has an axial forward end and an axial rearward end. The hard cutting member has an axial forward functional portion which has a starting transverse functional dimension, and further has a base portion which has a maximum transverse base dimension. There is a ratio of the starting transverse functional dimension to the maximum transverse base dimension ranging between equal to 0.42 and less than 0.48. | 03-24-2011 |
| 20110067536 | Off-Axis Spring Held Clamping Unit - A clamping device used for securing a toolholder for metal working operations includes a lock rod reciprocating along a lock rod longitudinal axis to radially activate locking balls to engage perforations within the shank of a toolholder, wherein the toolholder is oriented along a toolholder axis non parallel to the locking rod longitudinal axis. Additionally, the lock rod includes a ramp which engages a bump-off pin in a direction lateral to the motion of the lock rod to provide a mechanism for ejecting the toolholder from the clamping device. | 03-24-2011 |
| 20110064530 | COATED CERAMIC CUTTING INSERT AND METHOD FOR MAKING THE SAME - A coated ceramic cutting insert for removing material from a workpiece, as well as a method for making the same, that includes a ceramic substrate with a rake surface and at least one flank surface wherein a cutting edge is at the juncture therebetween. A wear-resistant coating scheme that includes an alumina-containing base coating layer region, which has at least one exposed alumina coating layer, deposited by chemical vapor deposition on the substantially all of the surfaces of the ceramic substrate that experience wear during removal of material from the workpiece. The exposed alumina coating layer exhibits a blasted stress condition ranging between about 50 MPa (tensile stress) and about −2 GPa (compressive) as measured by XRD using the Psi tilt method and the (024) reflection of alumina. The exposed alumina coating layer is the result of wet blasting a titanium-containing outer coating layer region from the surface of the alumina-containing base coating layer region. | 03-17-2011 |
| 20110058907 | HIGH SPEED MILLING CUTTER WITH TAPERED PIN - A milling cutter includes a shank and upper portion with an insert pocket. The insert pocket includes a bottom surface, a radial support wall and an axial support wall. A cutting insert includes a hole extending from a bottom surface. A tapered pin includes a lower portion and a tapered upper portion. A spring engages the lower portion of the tapered pin and provides an upward biasing force on the tapered pin. A center axis of the tapered pin is closer to the radial support wall than a center axis of the hole of the cutting insert such that the tapered pin exerts pressure against the hole of the cutting insert to cause one of the side walls of the cutting insert to be forced against the radial support wall of the insert pocket when the cutting insert is mounted in the insert pocket. | 03-10-2011 |
| 20110052337 | TOOLHOLDER AND TOOLHOLDER ASSEMBLY WITH ELONGATED SEATING PADS - A toolholder assembly has a pocket adapted to receive a double-sided on-edge cutting insert with wiper facets. A pocket has at least two sides and supports pads extending from each of the at least two sides, wherein the support pads contact the wiper facets of the cutting insert when the cutting insert is mounted within the pocket. | 03-03-2011 |
| 20110038676 | MILLING CUTTER AND METHOD OF OPERATING SAME, AND OTHER MACHINE TOOLS, AND AN ADJUSTMENT MECHANISM THEREFOR - Milling cutter and method of operating same, and other machine tools, and an adjustment mechanism therefor. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner. | 02-17-2011 |
| 20110033251 | ROTARY CUTTING TOOL WITH REVERSE CHIPBREAKER PATTERN - A rotary cutting tool with a longitudinal axis includes a shank portion, a cutting portion, and a plurality of chipbreakers. The cutting portion includes a plurality of blades and a plurality of flutes. The blades and flutes extend substantially along the length of the cutting portion. Each blade includes a leading face, a trailing face, and a land surface that extends between the leading face and the trailing face. The chipbreakers are disposed in the land surfaces of the blades. The chipbreakers on each blade are equidistant from each other and are distributed in a reverse chipbreaker pattern among the blades such that each chipbreaker on a preceding blade is closer to the cutting tip than a corresponding chipbreaker on an immediately adjacent following blade for a particular direction of rotation of the rotary cutting tool. | 02-10-2011 |
| 20110033250 | MILLING CUTTER AND MILLING INSERT WITH COOLANT DELIVERY - A cutting insert for use in chipforming and material removal from a workpiece wherein coolant is supplied to the cutting insert from a coolant source. The cutting insert includes at least one discrete cutting location and at least one distinct internal channel that corresponds to the cutting location. The internal channel has an inlet to receive coolant and an outlet to exit coolant. The outlet is proximate to the cutting location, and the inlet is radial inward of the outlet. | 02-10-2011 |
| 20110033249 | METAL CUTTING SYSTEM FOR EFFECTIVE COOLANT DELIVERY - A metal cutting system with a tool holder, a shim, an insert with a top depression, a top piece and a clamp. A rake face cooling channel for fluid delivery is formed between the top piece and the depression in the insert. A primary discharge slot at the end of the rake face cooling channel delivers fluid from below the cutting edge of the insert. A second cooling channel for delivery of fluid to the flank face is formed between the insert and the shim or is formed between the shim and the tool holder with a portion of the cooling channel passing through the shim. | 02-10-2011 |
| 20110027024 | MILLING CUTTER AND MILLING INSERT WITH COOLANT DELIVERY - A cutting insert for use in chipforming and material removal from a workpiece wherein coolant is supplied to the cutting insert from a coolant source. The cutting insert includes at least one discrete cutting location and at least one distinct internal channel that corresponds to the cutting location. The internal channel has an inlet to receive coolant and an outlet to exit coolant. The outlet is proximate to the cutting location, and the inlet is radial inward of the outlet. | 02-03-2011 |
| 20110027023 | MILLING CUTTER AND MILLING INSERT WITH COOLANT DELIVERY - A cutting insert for use in chipforming and material removal from a workpiece wherein coolant is supplied to the cutting insert from a coolant source. The cutting insert includes at least one discrete cutting location and at least one distinct internal channel that corresponds to the cutting location. The internal channel has an inlet to receive coolant and an outlet to exit coolant. The outlet is proximate to the cutting location, and the inlet is radial inward of the outlet. | 02-03-2011 |
| 20110027022 | METAL CUTTING SYSTEM FOR EFFECTIVE COOLANT DELIVERY - A metal cutting system with a tool holder, a shim, an insert with a top depression, a top piece and a clamp. A rake face cooling channel for fluid delivery is formed between the top piece and the depression in the insert. A primary discharge slot at the end of the rake face cooling channel delivers fluid from below the cutting edge of the insert. A second cooling channel for delivery of fluid to the flank face is formed between the insert and the shim or is formed between the shim and the tool holder with a portion of the cooling channel passing through the shim. | 02-03-2011 |
| 20110027021 | CUTTING INSERT WITH INTERNAL COOLANT DELIVERY AND CUTTING ASSEMBLY USING THE SAME - A metalcutting insert that is useful in chipforming and material removal from a workpiece The metalcutting insert includes a metalcutting insert body, which includes a cutting edge having at least one discrete cutting location. The metalcutting insert body further contains a distinct interior coolant passage communicating with the discrete cutting location. The distinct interior coolant passage has a coolant passage inlet defining a coolant passage inlet cross-sectional area, a coolant passage discharge defining a coolant passage discharge cross-sectional area, and an axial coolant passage length. The distinct interior coolant passage defines a coolant flow cross-sectional area along the axial coolant passage length thereof. The coolant passage inlet cross-sectional area is substantially the same as the coolant passage discharge cross-sectional area. The geometry of the coolant flow area changes along the axial coolant passage length. | 02-03-2011 |
| 20110020076 | METAL CUTTING SYSTEM FOR EFFECTIVE COOLANT DELIVERY - A metal cutting system with a tool holder, a shim, an insert with a top depression, a top piece and a clamp. A rake face cooling channel for fluid delivery is formed between the top piece and the depression in the insert. A primary discharge slot at the end of the rake face cooling channel delivers fluid from below the cutting edge of the insert. A second cooling channel for delivery of fluid to the flank face is formed between the insert and the shim or is formed between the shim and the tool holder with a portion of the cooling channel passing through the shim. | 01-27-2011 |
| 20110020075 | METAL CUTTING SYSTEM FOR EFFECTIVE COOLANT DELIVERY - A metal cutting system with a tool holder, a shim, an insert with a top depression, a top piece and a clamp. A rake face cooling channel for fluid delivery is formed between the top piece and the depression in the insert. A primary discharge slot at the end of the rake face cooling channel delivers fluid from below the cutting edge of the insert. A second cooling channel for delivery of fluid to the flank face is formed between the insert and the shim or is formed between the shim and the tool holder with a portion of the cooling channel passing through the shim. | 01-27-2011 |
| 20110020074 | CUTTING INSERTS - A cutting insert for use in a chipforming material removal operation that includes a cutting insert body, which has a seating surface, a flank face, and a corner cutting region at the intersection of a peripheral edge and the flank adjacent corresponding corners thereof. The cutting insert body contains a central aperture. The seating surface contains a coolant delivery trough, which has a radial orientation toward a corresponding corner cutting region. The coolant delivery trough has a radial outward end terminating at the peripheral edge and a radial inward end opening into the central aperture. There are a pair of lateral topographic regions wherein the one lateral topographic region is along one side of the coolant delivery trough and the other lateral topographic region is along other side of the coolant delivery trough. | 01-27-2011 |
| 20110020073 | CUTTING INSERT ASSEMBLY AND COMPONENTS THEREOF - A cutting assembly that is useful in an operation for chipforming removal of material from a workpiece. The cutting assembly includes a holder having a seat and containing a coolant delivery passage. A locking pin, which has a longitudinal locking pin bore, is affixed to the seat so the longitudinal locking pin bore is in communication with the coolant delivery passage. A cutting insert has a rake surface, a corner cutting edge region, a central cutting insert aperture, and a radial coolant trough with an orientation toward the corner cutting edge region. At least a portion of the locking pin is within the central cutting insert aperture. A clamp assembly attaches to the holder and engages the cutting insert. The clamp assembly has a diverter plate, which has a bottom surface defining a diverter bowl and a diverter channel. The longitudinal locking pin bore opening to the diverter plate whereby coolant flows into the diverter bowl and through the diverter channel into the radial coolant trough toward the corner cutting edge region. | 01-27-2011 |
| 20110020072 | SHIM FOR A CUTTING INSERT AND CUTTING INSERT-SHIM ASSEMBLY WITH INTERNAL COOLANT DELIVERY - A cutting insert-shim assembly that has a cutting insert with a bottom surface and a plurality of interior coolant passages wherein each interior coolant passage has a coolant inlet in the bottom surface of the cutting insert. The shim has a first side surface and a second side surface and contains a cavity, which communicates with the coolant conduit. The cavity defines a first opening in the first side surface and a second opening in the second side surface. When the shim is in a first condition, the first side surface contacts the bottom surface of the cutting insert and the first opening provides a first level of coolant communication to the interior coolant passages in the cutting insert. When the shim is in a second condition, the second side surface contacts the bottom surface of the cutting insert and the second opening provides a second level of coolant communication to the interior coolant passages in the cutting insert. | 01-27-2011 |
| 20100322732 | Drilling Tool - The invention discloses a drilling toll having at least one chip groove for chip removal, having an insert seat which is formed at the end of the chip groove and serves as a holder for an indexable insert with at least one main cutting edge on the two narrow sides and with at least one secondary cutting edge on the two longitudinal sides of one face side wherein the indexable insert has two face sides facing away from one another and bears with its inactive face side on a holding surface of the insert seat, and a partial region of the inactive secondary cutting edge of its active face side lies in the insert seat at a distance from the adjoining side wall of the insert seat created by a slot, and wherein a guide lip which covers the slot protrudes out of the top side of the side wall in the direction of the inactive secondary cutting edge. | 12-23-2010 |
| 20100320004 | Erosion Resistant Subterranean Drill Bits Having Infiltrated Metal Matrix Bodies - Subterranean drill bits having good erosion resistance, strength, toughness, and thermal stability are disclosed. The drill bits comprise a bit body carrying at least one cutting element and having an infiltrated metal matrix. The infiltrated metal matrix comprises a matrix powder composition bound together by an infiltrant. The matrix powder mixture includes cast tungsten carbide powder having a particle size of −30 (600 micron) +140 mesh (106 micron), a second component powder consisting of one or more other types of tungsten carbide particles, and a metal powder. | 12-23-2010 |
| 20100316456 | Twist Drill With Negative Axial Rake Transition Between The Lip And The Secondary Cutting Edge - A drill for making a hole within a workpiece has a body extending along a longitudinal axis, at least one flute extending along the body, and a drill point extending from the end of the body. The drill point has a periphery and is comprised of a chisel edge, a primary cutting edge extending inwardly from the periphery, a secondary cutting edge extending outwardly from the chisel edge, and a tertiary cutting edge connecting the primary cutting edge with the secondary cutting edge, wherein the tertiary cutting edge has a negative axial rake angle. A method for producing such a drill point is also disclosed wherein in one grinding pass a gash forms the axial rake angle of the secondary cutting edge, and in a separate grinding pass a portion of the secondary cutting edge is removed to produce a tertiary cutting edge having an axial rake angle that is negative. | 12-16-2010 |
| 20100260567 | Rotary Tool, in Particular a Drill - In order to provide a rotary tool, in particular a drill, with a long service life together with high-quality drill holes, particularly in the case of through bores, the invention provides a cutting head which extends along a rotational axis and has a plurality of main cutting edges which extend radially outwards and each end at a cutting corner having a corner bevel, wherein the corner bevels are of differing designs, specifically in the form of a roughing bevel and in the form of a finishing bevel. | 10-14-2010 |
| 20100255345 | COATED PCBN CUTTING INSERT, COATED PCBN CUTTING TOOL USING SUCH COATED PCBN CUTTING INSERT, AND METHOD FOR MAKING THE SAME - A coated polycrystalline cubic boron nitride cutting insert useful in a cutting tool for removing material from a workpiece, and a method for making the same. The cutting insert including a polycrystalline cubic boron nitride substrate with a rake surface and at least one flank surface, and a cutting edge formed at the juncture between the rake surface and the flank surface. A wear-resistant coating scheme is on the polycrystalline cubic boron nitride substrate. The wear-resistant coating scheme includes the following coating layers. An inner coating layer region is on at least some of the rake surface and at least some of the flank surface of the polycrystalline cubic boron nitride substrate. An alumina-containing coating layer region, which has at least one exposed alumina coating layer, is on the inner coating layer region. The exposed alumina coating layer exhibiting a post-blasted stress condition with stress ranging between about 50 MPa (tensile stress) and about −2 GPa (compressive stress) as measured by XRD using the Psi tilt method and the (024) reflection of alumina. The exposed coating layer is the result of wet blasting an outer titanium-containing coating layer from the surface of the alumina-containing coating layer region. | 10-07-2010 |
| 20100255199 | ALUMINA COATING, COATED PRODUCT AND METHOD OF MAKING THE SAME - A method of coating a substrate that includes the steps of: applying by chemical vapor deposition at a temperature ranging between about 750 degrees Centigrade and about 920 degrees Centigrade an alpha-alumina coating layer wherein the alpha-alumina coating layer exhibits a platelet grain morphology at the surface thereof. | 10-07-2010 |
| 20100251921 | Kinetic Energy Penetrator - A kinetic energy penetrator is provided comprising a consolidated body of a metal nanoparticles phase comprising metal nanoparticles and a metal carbide nanoparticles phase comprising metal carbide nanoparticles. Methods for making a kinetic energy penetrator as well as material compositions comprising a consolidated body of a metal nanoparticles phase comprising metal nanoparticles and a metal carbide nanoparticles phase comprising metal carbide nanoparticles are also provided. | 10-07-2010 |
| 20100247257 | EXPANDABLE MULTI-FLUTE REAMER WITH TAPERED PIN - An expandable reamer includes a shank portion, a cutting portion extending from the shank portion, and a tapered pin capable of being at least partially received in the cutting portion. The cutting portion includes a plurality of blades separated by flutes, and a tapered inner surface with threads. The tapered pin includes a tapered outer surface with threads and causes expansion or contraction of the cutting portion when the tapered pin is screwed or unscrewed into the cutting portion. In one embodiment, a coolant channel extends from a coolant cavity through a wall of the cutting portion to provide fluid to the blades during machining of through-holes. In another embodiment, the tapered pin includes a coolant passage in fluid communication with the coolant cavity to provide fluid to the blades during machining of blind holes. | 09-30-2010 |
| 20100239377 | CUTTING TOOL HAVING COOLANT DELIVERY SYSTEM FOR PROVIDING CUTTING FLUID IN A FAN-LIKE PATTERN - A cutting tool includes a body having a forward end and a rearward end. The forward end includes an insert-receiving pocket. The body further includes a coolant delivery system comprising a main coolant passage having a main coolant inlet extending from the rearward end toward the forward end, a primary coolant passage in fluid communication with the main coolant passage and having a primary coolant outlet exiting from the insert-receiving pocket, and a secondary coolant passage in fluid communication with the primary coolant passage and having a secondary coolant outlet exiting into the insert-receiving pocket. The primary coolant outlet intersects the secondary coolant outlet to form an outlet having a substantially non-circular shape. As a result, the coolant fluid exiting the outlet is in a fan-like pattern and is evenly distributed over the cutting edge of the insert. | 09-23-2010 |
| 20100237684 | Core Breaker With Dust Suppression System - A core breaker for use with a continuous mining machine used to cut earth strata wherein the continuous mining machine has at least two spaced apart cutting drums whereby each one of the cutting drums cuts the earth strata leaving a core. The core breaker includes an elongate support positioned mediate of the two cutting drums. In one aspect, the elongate support includes a channel formed therein. The core breaker further includes a plurality of tool components attached to the elongate support. The core breaker also includes a plurality of spray nozzles positioned adjacent to the tool components. In one aspect, the plurality of spray nozzles each have a first end in fluid communication with the channel formed in the elongate support and a second end positioned adjacent an outer surface of the elongate support. The tool components may be, for example, a breaker wedge or a cutting tool such as a conical bit. | 09-23-2010 |
| 20100221078 | Drilling Tool and Method for Drilling - A drilling tool extends in a longitudinal direction and has a drill point and first and second major cutting edges, which extend approximately radially outward. The drill point is arranged eccentrically relative to a central axis, which is the same as the axis of rotation. The second major cutting edge is arranged by a cutting-height difference higher than the first major cutting edge. The first major cutting edge has a shorter radial edge length than the second major cutting edge. A method of utilizing the tool is also disclosed. | 09-02-2010 |
| 20100215983 | Brazed Claddings for Cast Iron Substrates - The present invention discloses abrasion resistant claddings for cast iron substrates comprising hard particles and nickel-based braze alloys. The cladding material can be brazed on cast iron substrates at lower temperatures than conventional cladding materials, providing highly increased abrasion resistance to the cast iron substrate materials without adversely affecting the physical properties and structural integrity of such substrates. | 08-26-2010 |
| 20100215447 | ROTARY CUTTING TOOL WITH CHIP BREAKER PATTERN - A rotary cutting tool with a longitudinal axis includes a shank portion, a cutting portion, and a plurality of chip-breaking features. The cutting portion includes a plurality of blades and a plurality of flutes. The blades and flutes extend substantially along the length of the cutting portion and have unequally-indexed spacing. The flutes have a tapered depth along the longitudinal axis. Each blade includes a leading face, a trailing face, and a land surface that extends between the leading face and the trailing face. A plurality of chip-breaking features having a multi-radius profile are disposed in the land surfaces of the blades and are distributed in an offset chip breaker pattern among the blades such that each chip-breaking feature on one blade is not directly behind the chip-breaking features on immediately adjacent blades. The chip-breaking features on each blade are equidistant from each other. | 08-26-2010 |
| 20100209206 | CUTTING TOOL COMPONENTS WITH WEAR-RESISTANT CLADDING LAYER - A wear-resistant cladding layer for cutting tool components. A cutting tool includes a tool holder and a clamp structured and arranged for releasably securing an insert to the tool holder. The cutting tool also includes a wear-resistant cladding layer brazed on at least a portion of the clamp and/or brazed on at least a portion of the tool holder, wherein the wear-resistant cladding layer comprises hard particles and a brazing material. | 08-19-2010 |
| 20100209201 | ROTARY CUTTING TOOL WITH WAVE PATTERN - A rotary cutting tool with a longitudinal axis includes a shank portion, a cutting portion defining a length of cut. The cutting portion includes a plurality of blades separated by flutes. The blades and flutes extend substantially along the length of cut. The flutes have a tapered depth along the longitudinal axis. Each blade includes a leading face, a trailing face, a land surface that extends between the leading face and the trailing face, and a cutting edge at the intersection between the leading face and the land surface. Each blade includes a wave pattern that begins at a first distance from the cutting tip for a first blade, and at a second distance from the cutting tip for an immediately adjacent blade. The wave pattern then repeats in an alternating fashion for each additional blade. | 08-19-2010 |
| 20100196113 | Toolholder Assembly With Axial Clamping Mechanism - An apparatus for releasably holding a tubular toolholder shank by axially reciprocating a lock rod between a locked and unlocked position. Compression balls following a helical path on a torque nut are used to retract a compression sleeve, which in turn compresses springs against the lock rod to move the lock rod into the locked position. As a result, a repeatable lock rod force is possible with a pre-determined and self limiting rotation of the torque nut. The same helical groove may be used to advance the compression sleeve against the lock rod to urge the toolholder from the base member. | 08-05-2010 |
| 20100187896 | Cold-formed cutting tool - A cutting tool body that includes an elongate steel body, which has an axial forward end and an axial rearward end. The elongate steel body contains at the axial forward end thereof a cold-headed socket. The cold-headed socket has an axial forward open end, an axial rearward closed surface, and a side socket surface extending between the axial forward open end and the axial rearward closed surface. The side socket surface contains an undercut adjacent the axial rearward closed surface. | 07-29-2010 |
| 20100187019 | Roof drill bit, roof drill bit body and hard cutting insert for roof drill bit - A roof drill bit has an elongate roof drill bit body, which has a forward end and a rearward end. The roof drill bit body contains a slot at the forward end. The roof drill bit body contains a dust port wherein the dust port has a central longitudinal dust axis. The roof drill bit further has a hard insert received within the slot wherein the hard insert has a leading surface. The leading surface of the hard insert is rotationally forward of the central longitudinal dust axis of the dust port. | 07-29-2010 |
| 20100183385 | CLAMPING TOOL HOLDER - A clamping tool holder includes a tool holder body and a clamp for clamping a cutting insert. The clamp causes the cutting insert to press against the bottom and the side walls of an insert-receiving pocket of the tool holder body. The tool holder body has an inclined surface sloping inward in a direction away from the insert-receiving pocket. The clamp has an inclined surface that acts as a ramp with the inclined surface of the tool holder body. When a clamp screw is tightened, a nub of the clamp engages only an inside rearward surface of a mounting bore of the insert along a line of contact and exerts a force downward and rearward on the insert. In addition, only a forward lower face of a head portion the clamp screw engages a top surface of the clamp. | 07-22-2010 |
| 20100183383 | END MILL FOR ORBITAL DRILLING - A center or non-center cutting end mill for orbital drilling includes a shank having a shank diameter; a neck having a neck diameter; a cutting head having a cutting diameter; a corner radius; a dish angle; and a longitudinal axis, the cutting head including a forward cutting end having a convexly curved section located between the longitudinal axis and the corner radius, wherein the convexly curved section causes material removed from a workpiece to flow radially outward from an initial contact area toward the corner radius, thereby minimizing the accumulation of material in a central portion of the forward cutting end. | 07-22-2010 |
| 20100181403 | DRUM LINER ASSEMBLY FOR A MILL DRUM HAVING REPLACEABLE DRUM LINER SEGMENTS - An apparatus includes a mill drum for pulverizing and classifying material. The mill drum includes a cylindrical drum housing and one or more beater plates mounted for rotation within the housing. Each beater plate includes a plurality of beaters mounted on the peripheral edges thereof. A drum liner assembly includes a plurality of drum liner segments secured to the drum housing. Each drum liner segment includes a backing plate and one or more drum liners mounted thereon. The drum liners are made of a carbide material to provide superior wear characteristics. | 07-22-2010 |
| 20100159051 | METHOD AND APPARATUS FOR CROSS-PASSAGEWAY PRESSING TO PRODUCE CUTTING INSERTS - A die for use with a uni-axial press including top and bottom rams, at least one of the top and bottom rams being movable along a pressing axis. The die includes at least two separable die parts mutually engageable along adjacent parting surfaces extending in a direction non-perpendicular to the pressing axis and a removable core rod. The die parts are movable between separated and engaged positions in a direction non-parallel to the pressing axis. The die includes a first passageway extending therethrough between the periphery of the die and the die chamber. The first removable core rod is configured to be inserted into the die chamber through the first passageway. | 06-24-2010 |
| 20100158620 | Toolholder and Toolholder Assembly with Elongated Seating pads - A toolholder has a pocket adapted to receive a double-sided on-edge cutting insert, wherein the corners of each side of the insert are radially shifted with respect to one another and has mounting pads preferably mounted about the sides of the cutting insert. The relief area for the corners of the insert is selectively fabricated to maximize the length of the support pads within the pocket of the toolholder. | 06-24-2010 |
| 20100133761 | Milling Cutter Coupling System - A coupling system for mounting a cutting apparatus to a machine tool having a cutting apparatus and an adapter. The cutting apparatus has a first mounting flange having either a central bore or a central boss. The adapter has a second mounting flange having the other of a central bore or a central boss. The central boss on one of the mounting flanges forms a mating engagement with the central bore of the other mounting flange to align the two mounting flanges at a common center when the cutting apparatus is connected to the adapter. Additionally, each mounting flange may have at least one of a post or a groove located between an outer perimeter of the mounting flange and the central bore or central boss. When the cutting apparatus is connected to the adapter, at least one of the posts forms a mating engagement with a corresponding groove. | 06-03-2010 |
| 20100129479 | PELLETIZING DIE PLATE, PELLETIZING DIE ASSEMBLY, AND METHOD FOR MAKING THE SAME - A pelletizing die plate is useful with a main die body with passageways. The pelletizing die plate includes a die plate body, which is made of a hard composite material. The hard composite material contains a low thermal conductivity matrix of hard matrix particles and an infiltrant alloy bonded to the hard matrix particles to form the hard composite material. The hard matrix particles includes between greater than zero and up to about 20 weight percent titanium carbide particles and the balance cast tungsten carbide particles. The infiltrant alloy contains at least one or more of nickel and copper. The hard matrix particles are between about 50 weight percent and about 70 weight percent of the hard composite material and the infiltrant alloy are between about 30 weight percent and about 50 weight percent of the hard composite material. The hard composite material has a thermal conductivity less than or equal to about 25 Watt/m° K. The die plate body has bores in alignment with the passageways in the main die body thereby forming continuations of the passageways of the main die body. A method of making a pelletizing die assembly that has the steps of: providing a main die body wherein the main die body having a first end face and a second end face, and a plurality of passageways extending through said main die body between said first and second end faces; placing a first mass of hard matrix particles on the second end face of the main die body; placing a second mass of infiltrant alloy on the first mass of hard matrix particles; heating the first mass and the second mass whereby the infiltrant alloy infiltrates the first mass to form a hard composite material comprising a solid mass of the hard matrix particles bonded together by the infiltrant alloy; and forming bores in the hard composite material to form a top die plate wherein the bores are in alignment with the passageways in the main die body. | 05-27-2010 |
| 20100129166 | Eight-Edged Cutting Insert, and Tool Holder for Same - The invention relates to an eight-edged rotatable and reversible cutting insert having two opposite, substantially square base surfaces which are twisted relative to one another about a central axis running perpendicularly to said base surfaces, and having four identical side surfaces. A main lip is formed between each base surface and each side surface and extends only over part of the length of the side surface. Each side surface has two diagonally opposite corner edges which are of circular or curved design and form a secondary lip adjacent to the respective main lip. In addition, each side surface has two chip pockets which are drawn into the side surface and which, starting from the respective corner edge, extend along the main lip assigned to said corner edge up to a rear chip pocket end. | 05-27-2010 |
| 20100122903 | Readily-Densified Titanium Diboride and Process for Making Same - Additions of substitutional transition metal elements are made to improve the densifiability of titanium diboride while eliminating or minimizing the presence of deleterious grain boundary phases in the resultant bulk titanium diboride articles. | 05-20-2010 |
| 20100119313 | Eight-Edged Cutting Insert, and Tool Holder for Same - The invention relates to an eight-edged rotatable and reversible cutting insert having two opposite, substantially square base surfaces which are twisted relative to one another about a central axis running perpendicularly to said base surfaces, and having four identical side surfaces, wherein a main lip is formed between each base surface and each side surface. A bearing surface is formed between two chip grooves which extend along the associated main lip of the respective side surface, said bearing surface extending symmetrically beyond the groove ends of the adjacent chip groove and transversely to the main lips until its adjoins the latter. | 05-13-2010 |
| 20100052407 | ROTATABLE CUTTING TOOL WITH SUPERHARD CUTTING MEMBER - A rotatable cutting tool that is useful for impingement upon a substrate and is adapted to be rotatably retained within the bore of a holder. The rotatable cutting tool includes an elongate cutting tool body, which has an axial forward end and an axial rearward end, as well as a socket at the axial forward end thereof. The rotatable cutting tool also includes a hard cutting member that is affixed to the cutting tool body within the socket. The hard cutting member has an axial forward end and an axial rearward end. The hard cutting member has a superhard axial forward portion at the axial forward end thereof wherein the superhard axial forward portion has a maximum transverse dimension. The hard cutting member further has a hard axial rearward portion contiguous with and axial rearward of the superhard axial forward portion. The hard axial rearward portion has a maximum transverse dimension. The ratio of the maximum transverse dimension of the superhard axial forward portion to the maximum transverse dimension of the hard axial rearward portion ranges between about 0.35 and about 0.45. | 03-04-2010 |
| 20100047028 | Cutting Insert, in Particular for Counterboring and/or Countersinking Operations - In the case of a cutting insert, in particular for counterboring and/or countersinking operations, the cutting insert has two longitudinal sides and two narrow sides between an upper side and an underside. A cutting edge is formed between one longitudinal side and one narrow side and runs obliquely in relation to the underside and extends over at least approximately the entire depth of the cutting body. A cutting face running between the upper side and the underside is provided in the longitudinal side that is facing the cutting edge. | 02-25-2010 |
| 20100007192 | CUTTING BIT BODY AND METHOD FOR MAKING THE SAME - A cutting bit body that is a part of a cutting bit that includes a hard insert that is affixed to the cutting bit body and wherein the cutting bit impinges earth strata. The cutting bit body is an elongate powder metallurgical body member. A method for making a powder metallurgical cutting bit body that includes the steps of: providing a powder mixture; pressing the powder mixture into a green cutting bit body compact having a partial density; and consolidating the green body to form the powder metallurgical cutting bit body. | 01-14-2010 |
| 20090321274 | Machine And Method For Electrochemically Polishing Indentations Within An Aluminum Wheel - A machine for electrochemically polishing indentations within the wall of an aluminum workpiece, such as a wheel, has a cathode attached to an upper platen. The workpiece is mounted upon a lower platen which acts as an anode. Electrolyte is passed between the cathode and the anode while simultaneously a current is applied which passes through the cathode and the anode. The current is selectively pulsed to maximize polishing but at the same time to permit the flushing away of residual material and to cool the cathode and the workpiece. | 12-31-2009 |
| 20090321145 | THREADED NOZZLE FOR A CUTTER BIT - A threaded nozzle for use in a cutter bit is disclosed. Threads are either machined into or pressed into a pressed powder nozzle then the nozzle is sintered. Threads of the nozzles of the present invention exhibit improved hardness and have a rougher surface finish than threads machined post-sintering. Shaping of the threads into the nozzle before sintering is also more economical and efficient than post-sintering machining. | 12-31-2009 |
| 20090269151 | UNCOATED CUTTING TOOL USING BRAZED-IN SUPERHARD BLANK - An uncoated cutting tool that comprises a body containing a pocket. A polycrystalline cubic boron nitride blank has a cutting tip. The blank is brazed into the pocket using a braze alloy whereby there is a braze joint between the body and the polycrystalline cubic boron nitride blank. The braze alloy has a liquidus temperature of at least about 900 degrees Centigrade wherein the braze alloy is selected from the group comprising a nickel-gold braze alloy containing nickel and gold, a copper-gold braze alloy containing copper and gold, a silver-titanium braze alloy containing silver and titanium, and a silver-palladium braze alloy containing silver and palladium. | 10-29-2009 |
| 20090261646 | Indexable Cutting Tool System - A system for excavating and/or trenching hard and soft ground material includes a support block having a bore with a cylindrical portion and a non-cylindrical portion with flat surfaces and a cutting tool mounted in the bore, which may be a non-rotatable cutting tool having a shank with flat surfaces or a rotatable cutting tool having a shank with a cylindrical portion. The non-cylindrical portion of the bore rotatably engages the cylindrical portion of the rotatable cutting tool and the flat surfaces of the bore engage the flat surfaces of the non-rotatable cutting tool. A further embodiment includes a support block having a bore with flat surfaces along the entire length of the bore that engage the flat surfaces of the shank of the non-rotatable cutting tool and which bore receives the cylindrical portion of the shank of the rotatable cutting tool but does not restrain rotation thereof. In yet another embodiment, the support block may have two non-cylindrical portions and a single cylindrical portion, while the cutting tool may have a shank with two non-cylindrical portions and a single cylindrical portion corresponding to those within the bore of the support block. | 10-22-2009 |
| 20090252566 | CUTTING INSERT - A cutting insert ( | 10-08-2009 |
| 20090136776 | Method And Apparatus Using A Split Case Die To Press A Part And The Part Produced Therefrom - A split case die is used to press powder, wherein the die parts are moveable in a direction non-parallel to the direction of the pressing axis. The part produced by such a split case die has an external surface with parting line marks oriented in a direction non-perpendicular to the pressing axis. | 05-28-2009 |
| 20090091091 | SHRINK FIT SLEEVE FOR TOOL HOLDER - A tool holder includes a shank including a tool holder portion and a central bore for accommodating a cutting tool, and a first shrink fit sleeve disposed about the tool holder portion of the shank. An application of heat to the tool holder causes the tool holder portion and the first shrink fit sleeve to expand outwardly, and the removal of heat will cause the tool holder portion and the first shrink fit sleeve to contract inwardly to rigidly maintain the cutting tool within the tool holder by shrink fit. The tool holder may also include a second shrink fit sleeve disposed about the first shrink fit sleeve to provide increased torque capability. | 04-09-2009 |
| 20090090524 | CORNER WEAR PROTECTION FOR SEEDING TOOLS - A wear protection insert for an agricultural seeding tool having at least one angled edge on its lower base. The insert is made from wear resistant material shaped at an angle preferably ranging from about 135 to 175 degrees to form a doglegged corner component to improve the wear resistance of the soil slicing edge to the seeding tool. | 04-09-2009 |
| 20090084895 | Aircraft Skid Shoes with Wear-Resistant Cladding Layers - Aircraft skid shoes are provided with wear-resistant cladding layers. Powders of hard particles and braze material are impregnated into at least one cloth which is applied to the wear surface of a skid shoe of a helicopter or other aircraft. The skid shoe and cloth are heated to a brazing temperature to metallurgically bond the hard particles together and to the skid shoe substrate. The resultant cladding layers provide significantly increased abrasion resistance and reduced unit weight in comparison with skid shoes having conventional wear-resistant materials. | 04-02-2009 |
| 20080292737 | Cemented Carbide with Ultra-Low Thermal Conductivity - A hard alloy material comprising tungsten carbide in an amount of less than 50 weight percent of the material, titanium carbide in an amount of at least about 30 weight percent, and a binder material of cobalt and nickel. In other aspects of the invention, molybdenum and/or chromium are included to further lower the thermal conductivity of the material. The thermal conductivity of the material of the invention is about 12 Watt/m° K or less. | 11-27-2008 |
| 20080271581 | TOOLHOLDER - A toolholder with a controllable critical angle, such as a lead, trailing, rake or clearance angles, includes a tool spindle for retaining the toolholder in a tool rest of a machine tool. The machine tool includes at least one linear axis, for example, three mutually perpendicular axes, a rotary axis and a rotation axis. The rotary axis and/or rotation axis is controllable to move to a specified position in synchronization with a movement of one of the linear axes. An adaptor supports a cutting tool that is retained in the adaptor by a clamp. The cutting tool defines a critical angle, such as a lead angle, a trailing angle, a rake angle and a flank clearance angle, wherein the critical angle is corrected as a vector of movement of at least one of the linear axis is changed. In addition, the cutting tool can be positioned on opposite side of a centerline of rotation of the workpiece to effectively double the life of the cutting tool. A method of controlling a toolholder is also disclosed. | 11-06-2008 |
| 20080251296 | Countersink Roof Bit Drill And Method For Using The Same - A roof bit drill has a central shaft with a front end and a back end. The drill also has a base secured about the central shaft proximate to the front end, wherein the base has clearance channels extending axially therethrough. At least one cutting element is arranged on the base in a convex cutting pattern to permit loosened material to be evacuated. The roof bit drill may further include a drill depth locator to identify when the drill has been advanced within a mine roof to a predetermined depth. A method for using the roof drill bit is also disclosed herein. | 10-16-2008 |
| 20080232909 | Assembly For Rotating A Cutting Insert During A Turning Operation And Inserts Used Therein - A cutting insert rotated about its axis may be utilized during a metalworking operation and applied against the rotating workpiece to enhance tool performance. The cutting insert is secured within a toolholder having features to secure the insert but at the same time make for efficient removal of the insert from the toolholder. | 09-25-2008 |
| 20080226403 | Indexable cutting insert with positive axial rake angle and multiple cutting edges - An indexable cutting insert includes a first component with an outer or top surface and side surfaces. A third component is mirror symmetric with respect to the first component about a vertical or y-axis of the cutting insert. A second component is disposed between the first and third components. Multiple cutting edges are defined at an intersection between the side surfaces and the top surface, wherein the cutting edges define a positive axial rake angle. In one embodiment, the first and third components are in the shape of a polygonal with a star appearance, and the second component is in the shape of a square. The first and third components are offset from one another by a first offset angle, while the second component is offset from the first and third components by a second offset angle to allow the cutting insert to be indexable. | 09-18-2008 |
| 20080202719 | Composite materials comprising a hard ceramic phase and a Cu-Ni-Sn alloy - Composite materials comprising a hard ceramic phase and an infiltration alloy are disclosed. The hard ceramic phase may comprise a carbide such as tungsten carbide and/or cast carbide. The infiltration alloy is Cu-based and comprises Ni and Sn. The infiltration alloy may further include Nb, and may be substantially free of Mn. The composite material may be heat treated in order to improve its mechanical properties. For example, the composition of the Cu—Ni—Sn infiltration alloy may be selected such that its hardness, wear resistance, toughness and/or transverse rupture strength are improved after the composite material is solutioned and aged at elevated temperatures. | 08-28-2008 |
