Class / Patent application number | Description | Number of patent applications / Date published |
407042000 | Specified tool shape | 77 |
20080219782 | END MILL - An end mill is provided having an axis of rotation, a shank section and a fluted section, each extending along the axis of rotation, and a plurality of helical teeth. The fluted section has a first end attached to the shank section and a second end. The plurality of helical teeth is disposed within the fluted section. Each helical tooth has a cutting edge, a relief surface, a cutting surface, and an edge preparation surface. The edge preparation surface is contiguous with the cutting edge of the respective tooth. | 09-11-2008 |
20080260475 | SURFACE MILLING CUTTER WITH CUTTING INSERTS, A TOOL FOR HOLDING A CUTTING INSERT WITH A CUTTING INSERT AND METHOD OF MACHINING A WORKPIECE WITH A SURFACE MILLING CUTTER HOLDING CUTTING INSERTS - A cutting insert, a tool for holding a cutting insert, with a cutting insert and method of machining a workpiece with a tool holding a cutting insert. 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. | 10-23-2008 |
20090060662 | MONOBLOC SURFACE MILLING CUTTER - The monoblock surface milling cutter has a milling cutter body ( | 03-05-2009 |
20090129874 | CUTTING INSERT WITH SERRATIONS - A cutting insert has four quadrants defined by vertical and horizontal axes that pass through a centerline axis of the insert. The cutting insert further includes a top surface; a bottom surface; a plurality of clearance side surfaces extending between the top and bottom surfaces. A cutting edge is formed at an intersection between the top surface and the clearance side surfaces. A serration is formed in each clearance side surface such that two of the four quadrants that are diagonally opposite each other do not have serrations, and the other two of the four quadrants that are diagonally opposite each other include a pair of serrations. The cutting insert can be mounted to a milling cutter in a variety of patterns by rotating one cutting insert relative to another cutting insert in the same flute or in a different flute. | 05-21-2009 |
20090214304 | HELICAL MILLING CUTTER - A cutting tool having an outer surface with a plurality of inserts connected to a distinct pocket extending generally radially on the outer surface. The cutting inserts are arranged in a helical array on the outer surface in a manner that at least one cutting edge of each cutting insert is spaced in an angular circumferential direction from the pocket of the next adjacent cutting insert. The spacing of the inserts is such that a distinct point on the each one of the one or more cutting edges define part of a layout line having a non-uniform slope. | 08-27-2009 |
20090245948 | CUTTING TOOL - A cutting tool, for cutting a workpiece of a non-ferrous metal with hard particles dispersed therein, includes a rake face, a relief face, and a cutting edge formed at the intersection of the rake face and the relief face. A distal end portion of the cutting tool including the cutting edge is composed of a diamond tip. The relief face is divided into a first relief face and a second relief face with a curved boundary ridge therebetween. The first relief face intersects the cutting edge, and the second relief face extends from the boundary ridge away from the cutting edge. A first relief angle, that is an angle between the first relief face and the rake face of the cutting tool, is larger than a second relief angle that is an angle between the plane of the second relief face and the rake face. The boundary ridge is formed on the diamond tip. | 10-01-2009 |
20090245949 | INSERT FOR DRILL AND INDEXABLE INSERT DRILL - An insert for a drill in which one of the cutting edges respectively formed at four side ridge portions of a rake face of a square flat plate-shaped insert body is made to protrude toward the tip of the drill body of the indexable insert drill while being detachably attached is provided. Each of the cutting edges has a corner cutting edge located at a corner of the rake face, and a major cutting edge and a wiper edge which extend substantially toward one peripheral direction of the rake face from a corner cutting edge. The major cutting edge has a first major cutting edge portion which has a convexly curved shape and extends from the corner cutting edge, and a second major cutting edge portion which smoothly touches the first major cutting edge portion and extends linearly, as seen from a direction facing the rake face. The wiper edge has a straight shape intersecting the second major cutting edge portion at an obtuse angle. | 10-01-2009 |
20100014928 | Tool for chip removing machining as well as a part and threaded joint therefor - A cutting tool, and a loose top therefore, includes two parts detachably connected to each other via a threaded joint in which co-operating male and female threads are included in the form of helicoidal ridges. The profile shape of each helicoidal ridge is defined by a top and two flanks, which delimit a helicoidal groove having a bottom. The first flank is inclined in relation to a center axis of the tool at a first angle that is smaller than a second angle of the second flank in relation to the center axis. Accordingly, the thread ridge is reinforced in comparison with thread ridges having a symmetrical profile shape, whereby larger tensile forces than compressive forces can be applied to the threaded joint while avoiding damage to the thread ridges. | 01-21-2010 |
20100054872 | MULTI FUNCTION CUTTING TOOL - A multi-function cutting tool is disclosed. The multi-function cutting tool includes a cutting insert ( | 03-04-2010 |
20100054873 | Cutting Tool and Round Double Sided Cutting Insert Therefor - A cutting insert for retention in a rotating cutting tool having an axis of rotation has two opposing end surfaces and a peripheral surface extending therebetween, each end surface having a mutual first axis of symmetry passing through the end surfaces about which each end surface has N-fold rotational symmetry for some value of N where N is chosen from the group consisting of 2, 3 and 4. A peripheral cutting edge is formed at the junction between each end surface and the peripheral surface, the peripheral cutting edge having N curved cutting edges merging with N straight cutting edges which extend between the curved cutting edges at extremities thereof. The curved cutting edges of the two end surfaces are not aligned in an end view of the cutting insert along the first axis of symmetry. | 03-04-2010 |
20100092253 | Cutting Insert and Cutting Tool, and Cutting Method Using the Same - The present invention is a cutting insert, comprising an upper surface, a lower surface, a side surface, a cutting edge, and a groove portion. The cutting edge comprises a main cutting edge, an auxiliary cutting edge arranged so as to make an obtuse angle to the main cutting edge in the upper surface view, and a corner cutting edge positioned between the main cutting edge and the auxiliary cutting edge and is located in at least a part of an intersection portion between the upper surface and the side surface. The groove portion is located on the side surface so as to reach the upper surface. In this cutting insert, a side wall surface of the groove portion positioned on the side near the corner cutting edge is substantially parallel to the auxiliary cutting edge or comes close to the auxiliary cutting edge toward inside of the groove portion in the upper surface view. The present invention is a cutting tool in which this cutting insert is installed and a cutting method using the same. | 04-15-2010 |
20100124465 | DOUBLE-SIDED BALL END MILL CUTTING INSERT AND TOOL THEREFOR - A double-sided ball end mill includes a body having a generally hemispherical forward end portion and a rearward end portion. The forward end portion includes insert-receiving pockets and chip pockets. A cutting insert can be mounted within each insert-receiving pocket. The cutting insert includes a first substantially planar surface, a second substantially planar surface, a first curvilinear side surface, a second curvilinear side surface, a first pair of cutting edges formed at an intersection between the first substantially planar surface and the first and second curvilinear side surfaces, and a second pair of cutting edges formed at an intersection between the second substantially planar surface and the first and second curvilinear side surfaces. The first and second planar surfaces are substantially parallel to each other, and the cutting insert is mirror symmetric about all three axes. | 05-20-2010 |
20100129165 | Ball nose end mill and insert - A cutting insert for a ball nose end mill includes a body including two opposed substantially flat retention surfaces. Each retention surface includes a chip control groove thereon extending from a point at or near an axial center of the body at an angle relative to the axial center of the body. The insert further includes a peripheral surface joining the two retention surfaces, wherein the peripheral surface includes a locating surface at a first end thereof and two arcuate surfaces at an opposed, second end thereof extending rearwardly from approximately the axial center of the second end and positioned on opposite sides of the insert symmetrically with respect to the centerline of the insert. The arcuate surfaces each including an arcuate cutting edge at the intersection of outer portion of a chip control groove and the arcuate surface. The arcuate surfaces are formed with a face clearance angle under the cutting edges. | 05-27-2010 |
20100150671 | DOUBLE-SIDED INDEXABLE FACE MILLING INSERT - A double-sided, indexable face milling insert, including an upperside, an underside, and a neutral plane (NP) parallel to the upperside and the underside, the neutral plane forming a right angle with a geometrical center axis (C | 06-17-2010 |
20100166511 | Universal tool and inserts for milling splines - The invention discloses an improved tool and inserts for concurrently milling multiple splines on a round (rod) material. Replaceable inserts having teeth formed to have their cutting edges shaped in the arc of a circle are disclosed. The inserts each include at least two sets of rough milling teeth and a fine set of milling teeth. The tool holder shank includes recesses which provide a common or universal unit for receiving various sized groupings, each comprising an insert, a wedge for securing the insert, and a supporting member for the insert. | 07-01-2010 |
20100221076 | CUTTING TOOL AND CUTTING INSERT - A cutting tool is provided with a tool body which rotates about an axis thereof, and a cutting insert mounted removably on the outer periphery at the tip of the tool body, wherein: the cutting insert has a front/back-reversal symmetric substantially regular heptagonal plane shape having two heptagonal faces parallel with each other, a side face continuous with each of the heptagonal faces at right angles, and a cutting edge provided on each ridge line between the heptagonal face and the side face; the cutting edge includes a main cutting edge projected onto the side of the regular heptagon, and sub-cutting edges that extend from opposite ends of the main cutting edge so as to incline toward the center of the heptagonal face and connect the adjacent main cutting edges, and the tool body is equipped with a mounting seat that retains the cutting insert such that one of the main cutting edge is directed toward the tip side of the tool body and in a radial-outer direction in order to make it to work in cutting, and a corner angle α between one of the main cutting edges and the axis satisfy a relation 40°≦α≦44°. | 09-02-2010 |
20100247252 | Cutting Insert, Cutting Tool Using The Same, and Cutting Method - A cutting edge is formed at a ridge between an upper surface and a side surface. In the side surface, a plurality of grooves are formed so as to extend from the side surface to the upper surface to divide the cutting edge, and the clearance angles within these grooves are formed so as to increase from one end of the cutting edge toward the other end of the cutting edge. This achieves a cutting insert having small cutting force and excellent cutting performance. Among the plurality of grooves, the groove nearest to the one end of the cutting edge has preferably a width increasing from the upper surface of the cutting insert toward the lower surface. | 09-30-2010 |
20110008112 | RADIUS END MILL AND CUTTING INSERT - A radius end mill including an end mill body which is rotated around an axis thereof; a chip discharge flute being provided at an outer periphery of a tip portion of the end mill body; a gash being provided at a tip portion of the chip discharge flute; a rake face being formed on a wall face facing an end-mill rotational direction in the chip discharge flute or the gash; a cutting edge being formed on the rake face; the cutting edge including an end cutting edge, an outer peripheral cutting edge, and a convex circular-arc-shaped corner cutting edge; the end cutting edge being formed at a side ridge portion on the tip portion of the rake face; the outer peripheral cutting edge being formed at a side ridge portion on the outer peripheral side of the rake face; the convex circular-arc-shaped corner cutting edge being formed at a corner side ridge portion formed by the end cutting edge and the outer peripheral cutting edge; wherein the corner cutting edge has a positive cutting edge inclination angle; and the portion of the rake face on the side of the side ridge portion along at least a portion of the corner cutting edge is inclined toward the rear side in the end-mill rotational direction as it approaches the outer peripheral cutting edge from the end cutting edge, and is formed in the shape of a twist face whose inclination toward the rear side in the end-mill rotational direction gradually becomes larger as it approaches the center of the convex circular arc formed by the corner cutting edge from the corner cutting edge. | 01-13-2011 |
20110008113 | RADIUS END MILL AND CUTTING INSERT - A radius end mill including an end mill body which is rotated around an axis thereof; a chip discharge flute being provided at an outer periphery of a tip portion of the end mill body; a gash being provided at a tip portion of the chip discharge flute; a rake face being formed on a wall face facing an end-mill rotational direction in the chip discharge flute or the gash; a cutting edge being formed on the rake face; the cutting edge including an end cutting edge, an outer peripheral cutting edge, and a convex circular-arc-shaped corner cutting edge; the end cutting edge being formed at a side ridge portion on the tip portion of the rake face; the outer peripheral cutting edge being formed at a side ridge portion on the outer peripheral side of the rake face; the convex circular-arc-shaped corner cutting edge being formed at a corner side ridge portion formed by the end cutting edge and the outer peripheral cutting edge; a chip breaker being formed on a side ridge portion of the rake face at least along the corner cutting edge so as to have a convex circular-arc shape extending parallel to the corner cutting edge at the portion along the corner cutting edge; the chip breaker having a groove bottom face lower than respect to the rake face, and a groove wall face which rises from the groove bottom face and is connected to the rake face; and at both ends of the chip breaker on the side of the end cutting edge and on the side of the outer peripheral cutting edge, the groove bottom face rising to connect with the rake face in a direction along the end cutting edge or the outer peripheral cutting edge at the end, or the groove bottom face extends so as to be parallel to the rake face and the chip breaker is opened. | 01-13-2011 |
20110070038 | CUTTING INSERT, CUTTING TOOL AND CUTTING METHOD USING THE SAME - A cutting insert provided with an upper surface, side surfaces, and cutting edges provided at portions at which the upper surface and the side surfaces intersect with each other. Each side surface has grooves reaching the upper surface so as to divide the cutting edge into small cutting edges. Projections are provided on the upper surface at positions to which the grooves extend. | 03-24-2011 |
20110081210 | CUTTING INSERT, CUTTING TOOL AND CUTTING METHOD USING THE SAME - A cutting insert is provided with an upper surface, a lower surface, side surfaces for interconnecting the upper surface and the lower surface, cutting edges located at the intersections between the upper surface and the side surfaces, and grooves located in the side surfaces, extending from the upper surface toward the lower surface, and dividing the cutting edges. Each of the grooves is provided with a first edge and a second edge which are located at the edges of the groove in the width direction thereof and extending from the upper surface toward the lower surface. In a side view, the first edge has a first separated section located on the upper surface side and, as the first edge extends toward the lower surface, separated away from a reference line which passes through the midpoint of the groove in the width direction thereof and is substantially perpendicular to the lower surface. Also, in the side view, the second edge has a second separated section located on the upper surface side and separated away from the reference line as the second edge extends toward the lower surface. | 04-07-2011 |
20110091294 | FAMILY OF CUTTING INSERTS, MILLING CUTTING TOOL, AND CUTTING INSERT - A family of cutting inserts includes a plurality of different inserts, each having a different geometry. Each insert of the plurality of different inserts is adapted to be mounted in a common insert-receiving pocket on a toolholder of a milling cutting tool so that an outer diameter generated by the milling cutting tool is the same, regardless which insert of the plurality of inserts is mounted in the pocket. | 04-21-2011 |
20110110731 | CUTTING TOOL SYSTEM, CUTTING INSERT, AND TOOL HOLDER - An improved design of a cutting insert system includes a plurality of indexable peripheral milling cutting inserts adapted to be mounted on a peripheral milling tool holder. Each of the cutting inserts includes an insert width that is the same for each cutting insert. Each of the cutting inserts also includes a corner nose having a corner nose radius dimension that is different for each cutting insert, and an axial alignment clearance face that defines an equivalent face location and an equivalent clearance angle for each of the plurality of cutting inserts when the insert is detachably mounted on the tool holder. | 05-12-2011 |
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 |
20110170963 | Cutting Insert Having Cutting Edges with Recessed Portions - A cutting insert has a cutting edge formed at the intersection of a side surface an end surface. Recesses formed in the side surface interrupt the cutting edge at recessed cutting edge portions. Each recessed cutting edge portion has, in an end view of the cutting insert, a curved central section located between two curved side sections. The central section has a first radius of curvature and each side section has a second radius of curvature, the first radius of curvature being larger than the second radius of curvature. | 07-14-2011 |
20110243672 | Double Sides Cutting Insert and Cutting Tool With The Same - A cutting tool includes a tool body and at least one double-sided cutting insert mounted in an insert pocket of the tool body. The at least one double-sided cutting insert includes: an elliptical top surface; an elliptical bottom surface; first and second side surfaces connecting between both side ends of the top and bottom surfaces, respectively; a pair of corners connecting between both side ends of the first and second side surfaces, respectively; first and second cutting edges formed at a boundary portion between the top surface and the first side surface and a boundary portion between the bottom side surface and the second side surface and having a curved shape, respectively. | 10-06-2011 |
20110250025 | CUTTING INSERT FOR HIGH FEED FACE MILLING - A cutting insert for milling operations, such as, face milling, slot milling, plunge milling, and ramping operations. The cutting insert exhibits a combination of favorable cutting edge strength, and unique cutting edge geometry, thus, allowing milling operations at relatively high feed rates. The cutting insert includes at least four cutting edges, wherein at least one of the cutting edges is a convex cutting edge. Certain embodiments of square cutting inserts will have four convex cutting edges which may be connected by nose corners. The convex cutting edge may comprise at least one of a circular arc, a portion of an ellipse, a portion of a parabola, a multi-segment spline curve, a straight line, or combinations of these. Wherein the convex cutting edge comprises a circular arc, the circular arc may have a radius greater than or equal to two times a radius of the largest circle that may be inscribed on the top surface. | 10-13-2011 |
20110255924 | Exchangeable Cutting Insert - A cutting insert having a plurality of corner cutting edges has an upper face, a lower face, two longitudinal side faces and two transversal side faces connecting the upper face and the lower face. A through hole passes through central parts of the upper face and the lower face. The longitudinal side faces are opposite to each other and normal to both upper and lower faces, as are the transversal side faces. The upper face and the lower face are each provided with two chip discharge grooves, each chip discharge groove extending along a corresponding one of the transversal side faces, the two chip discharge grooves being inclined oppositely in the transverse direction so that the upper face and the lower face are each provided with two corner cutting edges at diagonally opposite corners. The longitudinal length of the insert is longer than the transversal length of the insert. The cutting insert can be mounted stably to a small-diametered cutter with a sufficient mounting surface. | 10-20-2011 |
20110280673 | Milling Tool for Machining Fiber Reinforced Composites and Multilayer Cutting Insert Therefor - A multilayer cutting insert includes a first layer made of a first material and a second layer made of a second material. The first material is harder than the second material. The cutting insert has opposing first and second major side surfaces and a peripheral side surface which extends therebetween. The first major side surface is formed in the first layer and includes a non-uniform relief surface. The peripheral side surface is formed in the two layers and includes a non-uniform rake surface. The rake surface and the relief surface intersect at an edge, at least portion of which is a curved major cutting edge. The rake surface is formed in at least the first layer, and the relief surface is formed only in the first layer. | 11-17-2011 |
20110299946 | Fully Indexable Single-Sided Cutting Insert and Milling Tool - A single-sided tangential cutting insert has a peripheral side surface with N identical major sides. The cutting insert has 360°/N rotational symmetry about an insert axis passing through top and bottom surfaces of the insert, where N is an integer greater than 2 and each major side is located between and merges with an adjacent major side. A cutting edge is formed at the intersection of a relief surface and a rake surface. The rake surface is located in the peripheral side surface and extends in an inward direction of the cutting insert from its associated cutting edge to a side surface of the associated major side. At least a portion of the relief surface is located in the top surface. | 12-08-2011 |
20110311327 | MULTI-EDGE CUTTING HEAD AND AN INSERT USED THEREIN - A cutting portion of an integral cutting tool or of a cutting insert adapted for mounting onto a cutting tool holder to form a cutting tool, which comprises a plurality n of cutting edges. The cutting portion extends along a cutting path about a central axis. The cutting path (CP) passes through a point of each of the cutting edges which is at a maximal radial space R from the central axis, such that (formula I), where D=2R and θ is the angular extension of the cutting path about the central axis (X). At any given point along the cutting portion, (formula II), where L is one of the following: i. the extension of the cutting portion in a direction perpendicular to the cutting path; and ii. the extension of the cutting edges in a direction perpendicular to the cutting path. | 12-22-2011 |
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 |
20120020749 | CARBIDE END MILL AND CUTTING METHOD USING THE END MILL - Provided is a long life carbide end mill which can perform stable cutting in high-efficiency machining such as die machining and parts machining. A cutting method using such an end mill is also provided. When a certain wavy or nicked peripheral cutting edge is considered a reference peripheral cutting edge with reference phases in a pitch of the reference peripheral cutting edge, wherein the distance of each reference phase is an amount corresponding to a value obtained by dividing the pitch of the nicks or waveform of each peripheral cutting edge by the number of the cutting edges; and the phase of at least one of the remaining peripheral cutting edges is deviated in the direction of the tool axis from the corresponding reference phase by an amount corresponding to 5% or less (excluding 0%) of the pitch. | 01-26-2012 |
20120070238 | Milling Cutter and Cutting Insert Having Rear Protuberance Therefor - A cutting insert for mounting in a socket on an insert holder of a milling cutter. The cutting insert has opposing top and bottom surfaces and a peripheral surface extending therebetween, forming one or two cutting edges. The peripheral surface has a front arcuate surface and a rear surface. The rear surface has a protuberance that extends in a direction away from a central region of the front surface. The protuberance is located in the socket. The socket includes a first socket side abutment surface for providing primarily axial support for the cutting insert against cutting forces acting in an axial rearward direction during a milling operation. | 03-22-2012 |
20120070239 | Double-Sided Cutting Insert Having a Circular Shape and Cutting Tool Using the Same - A cutting insert has a circular top surface, a bottom surface shaped to be identical to the top surface, a cylindrical side surface for connecting the top and bottom surfaces, and cutting edges formed between the top and side surfaces and between the bottom and side surfaces. The side surface of the cutting insert has a plurality of rotation prevention surfaces substantially perpendicular to the top and bottom surfaces in the circumferential direction of the side surface. | 03-22-2012 |
20120070240 | CUTTING INSERT, CUTTING TOOL, AND METHOD OF MANUFACTURING MACHINED PRODUCT USING THE SAME - A cutting insert of the present invention includes an upper surface; a lower surface; a side surface; a cutting edge which is located along an intersection of the upper surface and the side surface, and comprises a major cutting edge, a flat cutting edge, and a minor cutting edge located between the major cutting edge and the flat cutting edge; and a land part located along the cutting edge on the upper surface. The land part includes a minor cutting edge land portion located correspondingly to the minor cutting edge. The minor cutting edge land portion is inclined downward toward a central part of the upper surface. The present invention also provides a cutting tool including the cutting insert, and a method of manufacturing a machined product by using the cutting tool. | 03-22-2012 |
20120087748 | Cutting Insert and Indexable Face Mill - A pair of sub-flank surfaces is formed at a vertex angle portion of an insert body having a substantially polygonal, plate-like shape, and between the sub flank surfaces, a vertex flank surface at a vertical angle portion is formed substantially in a protrusive, curved shape, and is smoothly connected to the sub-flank surfaces in a tangential direction. The vertex flank surface at the vertex angle portion is extended across the entire thickness of the insert body, and boundary lines, between the vertex flank surface at the vertex angle portion and a pair of minor cutting edges, are parallel to each other. A second curved ridge line, which is formed between (i) the flank surface and (ii) the rake surface, and a first curved ridge line, which is formed between (i) the flank surface and (ii) the seat surface, have approximately same shape. | 04-12-2012 |
20120087749 | Cutting Insert and Face Milling Cutter - A cutting insert includes a cutting edge formed at an intersection of a rake face formed on a first surface and a relief face with a positive relief angle. The relief face includes a major relief face located adjacent to a major cutting edge, a first minor relief face located adjacent to the first minor cutting edge, and an intermediate relief face located adjacent to the intermediate cutting edge and extending between the major relief face and the first minor relief face. The intermediate relief face includes a protruding curved relief face extending from the first surface. An intersection of the curved relief face and the rake face has a predetermined radius of curvature and has substantially the same shape as that of an intersection of the curved relief face and a second surface. | 04-12-2012 |
20120093594 | FACE MILLING CUTTER - The invention relates to an end mill ( | 04-19-2012 |
20120163929 | ANTIROTATION TOOL HOLDER AND CUTTING INSERT - The present invention relates to embodiments of a cutting tool holder having at least one insert pocket, wherein at least one insert pocket comprises a side surface and at least one antirotation stop protruding from the side surface. | 06-28-2012 |
20120207554 | Cutting Insert and Cutting Tool - A cutting insert has a substantially polygonal shape, and a groove formed in a corner portion of one polygonal surface, and at an intersecting portion between a leading cutting edge and a peripheral cutting edge formed at intersecting portions of side surfaces adjacent to each other across the corner portion, a minor cutting edge is formed. Of the groove, in an area associated with the leading cutting edge and the minor cutting edge, a rake face including a downward inclined surface is formed. A first angle between a direction of maximum inclination of the downward inclined surface and the leading cutting edge is larger than a second angle between the direction of maximum inclination and the minor cutting edge. | 08-16-2012 |
20120251250 | ROUND CUTTING INSERT WITH REVERSE ANTI-ROTATION FEATURE - A round cutting insert with a reverse anti-rotation feature that can be manufactured easily and inexpensively is disclosed. The round cutting insert includes a plurality of dimples formed on a first surface and another plurality of dimples formed on a second, opposing surface. The round insert is reversible and indexable. The round cutting insert is removable received in an insert receiving pocket in a tool body. The insert receiving pocket includes a single projection that is capable of being received in one of the plurality of dimples. The cooperation between the projection and one of the plurality of dimples prevents rotation of the round cutting insert when mounted in the insert receiving pocket. The plurality of dimples and the projection can be any desirable complimentary shape, such as a slot, a V-shape, a wagon wheel, a sports wheel, a pyramid, and the like. | 10-04-2012 |
20120275868 | CUTTING INSERT AND REPLACEABLE INSERT-TYPE ROTATING TOOL - A rake face ( | 11-01-2012 |
20130004251 | TRIANGLE INSERT WITH MULTIPLE CUTTING EDGES AND MILLING CUTTER THEREFOR - An indexable insert ( | 01-03-2013 |
20130039705 | CUTTING INSERTS AND CUTTING TOOL SYSTEMS HAVING SINUSOIDAL AND HELICAL CUTTING EDGES - A cutting tool system is designed to have a combined sinusoidal-shaped and helical-shaped cutting edge formed by an assembly of aligned common cutting inserts each having a sinusoidal and helical cutting edge. | 02-14-2013 |
20130051936 | Cutting Insert Having V-Shaped Corner Views and Milling Tool - A cutting insert has eight identical main cutting edges. Four main cutting edges can operate with a positive axial rake and four can operate with a negative axial rake. The cutting insert has two opposing identical end surfaces and a peripheral surface extending between the end surfaces. The cutting insert is square-shaped in end views. Each end surface has four corners, two lowered corners and two raised corners. A diagonal line passes through the lowered corners of each end surface. For a given orientation of the cutting insert the peripheral surface has a V-shape in views along the two diagonal lines associated with each end surface, the two V-shapes being identical in form and oriented in opposite directions. | 02-28-2013 |
20130051937 | OPTIMIZATION OF CUTTING EDGE GEOMETRY IN ROUNDED NOSE END MILLS - A rounded nose end-mill modified by optimization of geometrical parameters of both the rake angle and relief angle along the cutting edge of the rounded portion, wherein the rake angle and the relief angle gradually increase along the cutting edge from the full diameter of the rounded portion to the tip. | 02-28-2013 |
20130094913 | CUTTING INSERT AND INDEXABLE CUTTING TOOL - A cutting insert helps prevent the occurrence of burrs and enables highly efficient processing. The cutting edge of the insert includes a cutting corner portion, a first main cutting edge and a second main cutting edge. The second main cutting edge includes a descending inclination portion inclined toward the side of a surface facing the rake face as it separates from the cutting corner portion and an ascending inclination portion inclined toward the side of the surface on which the rake face is formed, as it separates from the cutting corner portion. The descending inclination portion is connected to the cutting corner portion, the ascending inclination portion is connected to the descending inclination portion, and at least a connection region between the ascending inclination portion and the descending inclination portion has a concave curved non-cutting recess portion. | 04-18-2013 |
20130101363 | CUTTING INSERT AND INDEXABLE MILLING TOOL - A cutting insert is suitable for pocket machining. The cutting insert ( | 04-25-2013 |
20130121775 | DOUBLE-SIDED, INDEXABLE CUTTING INSERT WITH RAMPING CAPABILITY AND CUTTING TOOL THEREFOR - A double-sided, indexable cutting insert for a milling cutter includes a first surface, a second surface, and side surfaces. Major cutting edges are defined at an intersection between the first and second surfaces and side surfaces. Minor cutting edges and ramping cutting edges are defined at the intersection between the first and second surfaces and side surfaces. The cutting insert is mounted in a milling cutter having a bottom seating surface formed at an angle with respect to a central, rotational axis of the milling cutter, which provides superior performance for both milling and ramping cutting operations. | 05-16-2013 |
20130129432 | CUTTING INSERT AND A MILLING TOOL - A cutting insert for face milling and ramping includes an upper side defining an upper extension plane, a lower side defining a lower extension plane parallel with the upper extension plane, and an edge side extending around the cutting insert. A centre axis extends perpendicularly through the upper and lower extension planes. An upper cutting edge forms four upper cutting edge portions having an identical length corresponding to a determined angle with respect to the centre axis. A lower cutting edge forms four lower cutting edge portions ( | 05-23-2013 |
20130136547 | Cutting Insert and Indexable Endmill - A cutting insert for a multifunctional endmill is capable of using three corners. The cutting insert includes a top surface and a bottom surface having an outer shape of a substantially polygonal shape and four side surfaces extending between the top surface and the bottom surface, a first side surface has a positive flank angle, a second side surface has a positive flank angle, a third side surface has the positive flank angle, the first side surface includes a first and a second component surfaces connected with each other so that the first side surface protrudes outward from a peripheral surface of the cutting insert, and a connection portion between a first and a second component surface extends between the top surface and the bottom surface. | 05-30-2013 |
20130183108 | Cutting Insert and Rotary Cutting Tool - An indexable cutting insert has first and second side surfaces and a peripheral surface extending therebetween. The peripheral surface has identical peripheral faces, each divided into two identical first and second cutting sections. Each cutting section has a first cutting edge, a second cutting edge, a corner cutting edge which extends between the first and second cutting edges and a rake surface having a planar rake surface flat forming an engagement surface. The rake surface meets the first side surface at the first cutting edge. The rake surface flat meets the second side surface at a rake surface open edge. On each peripheral face, the two cutting sections are non-coplanar. Each two rake surface flats associated with first cutting sections converge in a direction along an insert axis and the cutting edges are raised above the rake surface flat. | 07-18-2013 |
20130223942 | Milling Insert and Milling Tip-Replacement-Type Rotary Cutting Tool - Disclosed is a milling insert, in which cutting resistance is reduced, wear advance of cutting edges is suppressed, and elongation of a lifetime is achieved, and is an indexable face milling cutter. | 08-29-2013 |
20130330135 | CUTTING INSERT FOR MACHINING - A cutting insert for machining has a substantially cylindrical main body with an axis, a lateral flank and opposing rake faces. Cutting edges are formed at the intersection of the flank and rake faces. The cutting edges have, in the direction of the axis, in each case at least two convexly curved sections which are connected together by concavely curved or substantially straight sections. | 12-12-2013 |
20140010605 | Rotary Cutting Tool and Reversible Cutting Insert Therefor - In a rotary cutting tool used for milling operations, a reversible indexable cutting insert is removably secured in a cutting body. The cutting insert has two opposing end surfaces interconnected by a continuous peripheral surface, including three side surfaces alternating with three corner surfaces. The side and corner surfaces intersect with both end surfaces at side and corner edges, respectively, with each side edge having a major cutting edge, and each corner edge having a corner and minor cutting edge. Each major and minor cutting edge slopes away from first and second end points, respectively, of its mutually associated corner cutting edge, towards a median plane. A first imaginary straight line extending perpendicular to the median plane and intersecting any one of the corner cutting edges at any point along its length except the second end point, passes through the median plane inside an insert boundary line. | 01-09-2014 |
20140064863 | TIP DRESSER - What is provided is a tip dresser ( | 03-06-2014 |
20140072377 | Milling tool as well as a milling insert therefor - A milling tool has single sided and indexable milling inserts having a round basic shape. Each milling insert has a plurality of tangentially spaced-apart and alternately usable cutting edges, which individually fall archedly from a first end, situated closest to an upper reference plane, to a lowest point, from which it again rises toward a second end. A reinforcing chamfer surface included in the cutting edge is formed with an increasing width in a direction from the first end of the cutting edge toward the second end. | 03-13-2014 |
20140161545 | NEGATIVE CUTTING INSERT, AND INDEXABLE ROTARY CUTTING TOOL, INDEXABLE ROTARY CUTTING TOOL SYSTEM AND CUTTING METHOD USING SUCH CUTTING INSERT - A negative cutting insert having a cutting edge comprising four long-side cutting edge portions for rough cutting and four short-side cutting edge portions for finish cutting, which are connected alternately, thereby being able to conduct rough cutting when attached to a rough-cutting tool body, and finish cutting when attached to a finish-cutting tool body. When such cutting inserts are used for rough or finish cutting and then reattached to a finish-cutting tool body or a rough-cutting tool body, finish or rough cutting can be conducted, thereby using all cutting edges thoroughly. | 06-12-2014 |
20140169892 | Cutting Tool and Replaceable Cutting Head Having Spiral Driven Surfaces Therefor - A replaceable cutting head includes a forward cutting portion and a rearward mounting portion. The mounting portion includes a male coupling member that protrudes rearwardly from a base surface. The male coupling member includes three circumferentially spaced apart head fixation members, where each head fixation member has a head peripheral surface that spirals inwardly in a direction against the direction of rotation and diverges. A tool holder includes a female coupling member extends rearwardly from a holder forward surface. The female coupling member includes three circumferentially spaced apart holder fixation members, where each holder fixation member has a holder peripheral surface that diverges rearwardly. When a cutting tool, which includes said cutting head and tool holder, is in a locked position, the male coupling member of the replaceable cutting head is removably retained within the female coupling member of the tool holder by means of a self-lock mechanism. | 06-19-2014 |
20140169893 | CUTTING INSERTS AND CUTTING TOOL SYSTEMS HAVING SINUSOIDAL AND HELICAL CUTTING EDGES - A cutting tool system is designed to have a combined sinusoidal-shaped and helical-shaped cutting edge formed by an assembly of aligned common cutting inserts each having a sinusoidal and helical cutting edge. | 06-19-2014 |
20140178135 | CUTTING INSERT, CUTTING TOOL, AND METHOD FOR MANUFACTURING CUT WORKPIECE USING SAME - A cutting insert, a cutting tool and method of manufacturing a machined product. The cutting insert includes: upper and lower surfaces; a side surface; a cutting edge; and a rake portion on the upper surface. The cutting edge includes major and minor cutting edges that are convex toward outside of the main body portion. The minor cutting edge has a curvature radius smaller than a curvature radius of the major cutting edge. The rake portion is inclined and approaches the lower surface as moving from the major cutting edge toward inside of the main body portion and is located along the major cutting edge. An inclination angle of the rake portion becomes smaller as moving from a part continuous with one end of the major cutting edge toward a part continuous with center of the major cutting edge. | 06-26-2014 |
20140199127 | CUTTING INSERT FOR FACE MILLING CUTTER AND INDEXABLE FACE MILLING CUTTER - The cutting insert for a face milling cutter is provided with an insert main body which is formed in a polygonal plate shape and in a shape of inversion symmetry on the front and back faces, a pair of polygonal faces facing in a thickness direction of the insert main body, side faces facing in a direction intersecting with the thickness direction, and cutting edges formed along a ridge line between the polygonal face and the side face. The polygonal face is in a substantially regular polygonal shape. The cutting edge has a major cutting edge, a minor cutting edge, and a connecting edge. The side face has a first flank face arranged adjacent to the cutting edge and gradually inclines outward in the insert radial direction. The first flank face is arranged so as to be adjacent at least to the major cutting edge. | 07-17-2014 |
20140205388 | INDEXABLE, DOUBLE-SIDED CUTTING INSERT AND CUTTING TOOL INCLUDING SUCH AN INSERT - A cutting insert includes a first surface having a first rake surface, a second surface having a second rake surface, a central axis of the insert extending between the first and second surfaces, four side surfaces extending between the first surface and the second surface, and four cutting edges. Each cutting edge has a first cutting edge component and a second cutting edge component and being associated with a respective one of the first and second surfaces and with two respective ones of the side surfaces. The first rake surface is identical to the second rake surface and the first rake surface and the second rake surface are oriented at a 90° angle to each other about the central axis of the insert. | 07-24-2014 |
20140212228 | CUTTING INSERT AND INDEXABLE INSERT-TYPE CUTTING TOOL - A cutting insert and an indexable insert-type cutting tool includes a cutting edge ( | 07-31-2014 |
20140212229 | DOUBLE-SIDED CUTTING INSERT FOR MILLING - A double-sided cutting insert for milling, in particular for face milling, includes first and second cutting edges each having alternately disposed main lips and secondary lips which each extend between active and passive cutting corners. Each main lip, starting from a first distance from a reference plane at an active cutting corner, extends in a manner dropping monotonously to a smaller, second distance from the reference plane at a passive cutting corner. That end of a secondary lip that adjoins the active cutting corner is in each case at a greater distance from the reference plane than the other end of the secondary lip that is remote from the active cutting corner. A circumferential side surface has, immediately adjacent the secondary lips, in each case planar secondary flanks and each secondary lip is formed at least regionally in a convex manner in plan view of the associated secondary flank. | 07-31-2014 |
20140341660 | Cutting Insert Having Eight Main Cutting Edges and Eight Wiper Edges and Cutting Tool Including The Same - A double-sided cutting insert for milling which has eight main cutting edges and eight wiper edges. The cutting insert includes top and bottom faces and four side faces. Each side face includes first and second sub-faces inclined with respect to each other. The first sub-face has a main cutting edge adjacent to the top face and a wiper edge adjacent to the bottom face. The second sub-face has a wiper edge adjacent to the top face and a main cutting edge adjacent to the bottom face. The wiper edge of the second sub-face is inclined inwardly relative to the cutting insert with respect to the main cutting edge of the first sub-face. The wiper edge of the first sub-face is inclined inwardly relative to the cutting insert with respect to the main cutting edge of the second sub-face. | 11-20-2014 |
20140348599 | INDEXABLE CUTTING INSERT WITH A TRIANGULAR SHAPE - An indexable cutting insert having a triangular shape includes three sides and three cutting corners. A first planar surface and a second, parallel planar surface connects the three sides. In one embodiment, three major cutting edges are formed at an intersection between a respective side and the first planar surface. In another embodiment, six major cutting edges are formed at an intersection between a respective side and the planar surfaces. In another embodiment, six major right-handed cutting edges and six major left-handed cutting edges are formed at an intersection between the sides and the first and second planar surfaces. | 11-27-2014 |
20150063928 | MACHINING HEAD, HOLDER AND EXCHANGEABLE TIP CUTTING TOOL - Provided are: an exchangeable tip cutting tool in which breakage of the threaded section and breakage of the thread ridges during installation of the machining head and under increased cutting load during cutting are limited and which is capable of performing machining with high efficiency; and a machining head and a holder to be used in the exchangeable tip cutting tool. The flank angle (α) of the pressure flank ( | 03-05-2015 |
20150117968 | CUTTING INSERT FOR HEAVY MACHINING OPERATIONS - A cutting insert for heavy machining operations is described. The cutting insert has two opposing end surfaces, two identical opposing major side surfaces and two identical opposing minor side surfaces. The cutting insert further includes a major cutting edge formed at an intersection of each major edge and the end surface, and a minor cutting edge formed at an intersection of each minor edge and the end surface, and a corner cutting edge formed at an intersection of the major and minor cutting edges. The major cutting edge has a non-linear, variable slope with respect to a central axis A2 passing through the two minor side surfaces of the cutting insert. | 04-30-2015 |
20150117969 | 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, two identical opposing major side surfaces and two identical opposing minor side surfaces. Each end surface of the insert has a shim abutment surface for contacting the shim. One end surface of the shim has an insert abutment surface for contacting the insert. The abutment surfaces contact each other along an entire length of the cutting insert and shim 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. | 04-30-2015 |
20150117970 | INDEXABLE INSERT FOR SHOULDER MILLING CUTTER AND SHOULDER MILLING CUTTER WITH MOUNTING CUTOUTS FOR INDEXABLE INSERTS - Indexable insert has a non-rectangular parallelogram shape with nearly rhombic basic shape and an imaginary intermediate plane spanned by four corners of an imaginary rhombus with sides running at a distance away from the upper side and the underside along the peripheral lateral surface in a plane such that each equivalent cutting edge has the same variation of distance and angle from the intermediate plane. Two diagonally opposing corners of both the upper side and the underside each have a greater distance from the intermediate plane than do the respective diagonally opposing corners of the upper side and the underside lying therebetween, and the diagonally opposing corners of the upper side and of the underside are shifted parallel to the intermediate plane and, as viewed in a plan view onto the intermediate plane, in mutually opposite directions away from the associated diagonals of the rhombus spanning the intermediate plane. | 04-30-2015 |
20160031020 | ROTARY CUTTING TOOL WITH REGRINDABLE CUTTING INSERTS - A rotary cutting tool includes a cutter body having a plurality of insert-receiving pockets. Each pocket includes a bottom support surface, an axial support surface, a radial support surface, a top clearance surface and an intermediate clearance surface extending between the axial support surface and the top clearance surface. A cutting insert includes a helical top surface, a helical side surface, a side surface opposite the helical side surface, a pair of opposed side walls, a bottom surface, and a cutting edge formed at an intersection between the helical top surface and the helical side surface. The cutting insert further includes an undercut for accommodating the axial support surface, the top clearance surface and the intermediate clearance surface of the pocket when the cutting insert is mounted in the pocket. | 02-04-2016 |
20160082527 | CUTTING INSERT, TOOL BODY ON WHICH CUTTING INSERT MAY BE MOUNTED, REPLACEABLE-BLADE-TYPE CUTTING TOOL PROVIDED THEREWITH, AND BALL END MILL - A cutting insert has top and bottom surfaces opposing each other and a side surface connecting them. A part of an intersecting ridge between the top and side surfaces functions as a cutting edge. On the side surface, a side surface portion adjacent to the intersecting ridge portion opposing the cutting edge intersects the top surface at an acute angle. At least on a part of a bottom surface, an inclined surface gradually approaching the top surface with increasing distance from a side surface portion on a side opposite to a cutting edge is formed. This allows a part of the cutting resistance to act on the side surface portion. As a result, friction resistance between the side surface portion and the side surface of an insert seat becomes larger, thereby suppressing a shifting of the cutting insert when cutting. | 03-24-2016 |
20160107247 | MILLING CUTTER - A milling cutter is configured to process an edge of a workpiece to a required profile. The required profile includes a first portion and a second portion coupled to the first portion. The milling cutter includes a shank having a central axis, at least one first cutting edge, and at least one second cutting edge. The first cutting edge is configured to rotate around the central axis of the shank along a first rotation path to process the first portion of the predetermined profile, and the second cutting edge is configured to rotate around the central axis of the shank along a second rotation path to process the second portion of the predetermined profile. The first rotation path is different from, and connected to the second rotation path. | 04-21-2016 |
20170231729 | ABUTMENT TOOL SET AND DEVICE FOR PRODUCING TOOTH REPLACEMENTS | 08-17-2017 |
20190143424 | TANGENTIALLY MOUNTED INDEXABLE CUTTING INSERT WITH SEGMENTED CUTTING EDGE AND TRIANGULAR-SHAPED MARGIN | 05-16-2019 |