Entries |
Document | Title | Date |
20080240876 | Cutting Insert Having Ceramic Coating - A cutting tool insert has a multilayer ceramic coating. The multilayer ceramic coating is a stratified structure of alternating sub layers of an oxide material and interfacial layers of a second material having good adhesion with the oxide material. The ceramic coating is deposited by chemical vapor deposition; each subsequently deposited interfacial layer serving to terminate a previously deposited oxide material sub layer and to serve as a surface for deposition of a subsequent oxide material sub layer. The second material is a solid solution of at least one element of the oxide material in a hard material. | 10-02-2008 |
20080253849 | Mono Crystalline Diamond Cutting Tool for Ultra Precision Machining - A mono crystalline diamond cutting tool is provided which can perform ultra precision machining on a crystalline material or a hard and brittle material with good swarf discharge and reduced cutting resistance to improve a precision of a cut surface, and has less wear or microchipping of a cutting edge and thus achieves long life. A tip having a cutting edge ridge in a rounded shape at a front end is provided, and a portion of the cutting edge ridge serving at least as a cutting edge is formed to have constant roundness by intersecting a first conical surface as a rake face with a second conical surface as a flank. The cutting edge ridge is rounded with a radius of less than 100 nm, the first conical surface has a width of 1 to 5 μm, and a swarf release face substantially perpendicular to a cutting direction is provided in a portion on a side of the first conical surface opposite a line of the cutting edge ridge. An intersection of the first conical surface and the swarf release face has a rounded face with a radius of 0.1 to 1.0 μm. The first conical surface has a negative rake angle of 15° to 50°. | 10-16-2008 |
20080253850 | Surface-Coated Cutting Tool - A surface-coated cutting tool includes a base material on which formed an inner layer composed of a compound containing Al, at least one of elements Cr and V and at least one element selected from the group consisting of nitrogen, carbon and oxygen, and an outermost layer composed of a carbonitride of TiSi is further formed on the inner layer. The surface-coated cutting tool is appropriately used for such tools as drill, end mill, throwaway tips for milling and turning, metal saw, gear cutting tool, reamer, and tap. The surface-coated cutting tool improved in peeling resistance and wear resistance as compared with conventional tools can thus be provided. | 10-16-2008 |
20080260477 | Coated Cutting Insert and Manufacturing Method Thereof - A coated cutting insert according to the present invention includes a base layer formed on a substrate and an indicating layer formed on a part of the base layer. The indicating layer is formed on a flank face, on the base layer on the entire surface or a part of a region A | 10-23-2008 |
20080260478 | Pvd Coated Substrate - A PVD coating is disclosed, and in particular a nanoscale multilayer superlattice PVD coating comprising high hardness, a low friction coefficient and increased chemical inertness. The multilayer coating comprises a repeating bilayer represented by (V | 10-23-2008 |
20080273933 | Pvd-Coated Cutting Tool Insert - The present invention relates to a coated cutting tool insert of cemented carbide with coating including at least one layer of Ti | 11-06-2008 |
20080298910 | DROPLET-FREE COATING SYSTEMS MANUFACTURED BY ARC-EVAPORATION METHOD - A droplet-free wear-resistant coating is manufactured by depositing a wear resistant nitride coating containing a nitride layer which contains at least one metal or metal compound of a metal selected from the group consisting of Ti, Cr, Al, Si and combinations thereof, on a surface of a substrate by cathodic-arc evaporation using a Venetian blind filter system in front of an arc cathode; to reduce metal microdroplets and/or metal microparticles in the wear resistant coating compared to an wear resistant coating obtained without a Venetian blind filter system. | 12-04-2008 |
20090003944 | Indexable Insert - An indexable insert ( | 01-01-2009 |
20090010724 | COATED CEMENTED CARBIDE INSERTS - The present invention relates to cutting insert for dry milling of hard cast steel with a hardness of from about 50 to about 65 HRC comprising a substrate and a coating. The substrate has a hardness of from about 1900 to about 2100 HV3, with a negative chamfer and an edge rounding of 0 (sharp) to about 40 μm. The coating comprises a homogeneous Al | 01-08-2009 |
20090016831 | Fine Grained Cemented Carbide for Turning in Heat Resistant Super Alloys (HRSA) - Coated cemented carbide inserts, particularly useful in fine turning of super alloys, are disclosed. The inserts are characterized by a composition of a cemented carbide of WC, about 4.0 wt-% Co to about 7.0 wt-% Co, about 0.25 wt-% Cr to 0.50 wt-% Cr, and a coercivity (Hc) of about 28 kA/m to about 38 kA/m. The coating comprises a single (Ti | 01-15-2009 |
20090067938 | INDEXABLE CUTTING INSERT - An indexable cutting insert ( | 03-12-2009 |
20090074521 | Insert for Milling of Cast Iron - Coated cemented carbide inserts, particularly useful for milling of cast iron, methods for making the inserts, and methods of their use are disclosed. The inserts are characterized by a composition of the substrate of about 5-7 wt % Co, about 0.05-2.0 wt % total amount of the metals selected from the group consisting of Ti, Nb,Ta and combination thereof, and balance WC with a coercivity (Hc) of 1 about 4-19 kA/m and an S-value of about 0.81-0.96. The coating comprises a homogeneous layer of (Ti | 03-19-2009 |
20090074522 | Reduced-friction coatings - A coating is provided having a first metal or non-metal nitride layer and a second metal or non-metal nitride layer wherein the first and second nitride layers are sufficiently resistant to interdiffusion to maintain respective individual layer structure and strength at an elevated operating temperature when a coating contact surface is in sliding contact with another material and wherein one of the first layer or second layer includes a component that is oxidizable at the contact surface to form a friction-reducing lubricous oxide material at the contact surface. | 03-19-2009 |
20090080986 | CUBIC BORON NITRIDE COMPACT - A method of manufacturing a powdered composition or starting material used in producing a CBN compact which comprises CBN, a secondary hard phase and a binder phase includes two steps of attrition milling. First, the attrition milling of the secondary hard phase and the binder phase. Second, adding CBN particles to the fine particle mixture of the first attrition milling and then attrition milling this mixture. | 03-26-2009 |
20090103993 | Method of Polishing a Tungsten Carbide Surface - The invention is directed to a method for polishing a surface comprising tungsten carbide, comprising contacting a surface comprising tungsten carbide with an oxidizing agent, a polishing component, and a liquid carrier, and abrading at least a portion of the surface to polish the surface. The invention further provides a method for reconditioning a workpiece comprising tungsten carbide. The invention also provides a cutting tool insert having a highly polished surface. | 04-23-2009 |
20090169315 | CVD Coated Cutting Tool Insert for Milling - Coated cemented carbide milling tool inserts are disclosed comprising a cemented carbide body and a coating. The cemented carbide body has a composition of about 7-15 wt % Co, cubic carbonitride phase and WC with a surface zone with a thickness of at least about 5 μm which is binder phase enriched and essentially free of cubic carbonitride phase and a wear resistant coating comprising at least one layer of Al | 07-02-2009 |
20090202312 | SURFACE-COATED CUTTING TOOL - A surface-coated cutting tool according to the present invention includes a base material and a coating film formed on the base material. The coating film includes one or more hard layer and one or more oxygen-rich hard layer. The hard layer is crystalline in its entirety or crystalline with a part thereof being amorphous. The oxygen-rich hard layer and the hard layer are stacked and the oxygen-rich hard layer is amorphous in a region of interface with the hard layer. | 08-13-2009 |
20090214306 | Coated Cutting Tool Insert - The present invention discloses a coated cutting tool insert particularly useful for dry and wet machining, preferably milling, in low and medium alloyed steels, stainless steels, with or without raw surface zones. The insert is characterized by a WC-TaC-NbC-Co cemented carbide with a W alloyed Co-binder phase and a coating including an innermost layer of TiC | 08-27-2009 |
20090274525 | INDEXABLE INSERT - An indexable insert ( | 11-05-2009 |
20090317199 | Surface Treating Method for Cutting Tools - In a cutting tool, if the outermost ceramic coating layer is a κ-Al | 12-24-2009 |
20100003091 | Diamond Cutting Member and Method of Making the Same - A shank has a mount reference surface formed with a mount seat having a mount seat surface inclined at a given inclined angle α. A diamond raw material is held on the shank in an attitude such that a first bottom surface thereof is in tight contact with the mount seat surface, and a first apex is protruded forward nearly along a centerline of the shank. A portion of the first apex, protruding from the mount reference surface, is ground and removed as a given inclined angle θ. This causes a surface or its vicinity (in a value less thank approximately ±1°) to be formed as a raked face. The first bottom surface of the diamond raw material is held intact in tight contact with the mount seat surface to be integrally bonded thereto by active metal brazing, easily ensuring an increased bonding surface area to easily obtain increased bonding strength. This results in a further remarkable reduction in manufacturing time and manufacturing cost as those achieved in a case where a portion of a seconds apex opposite to the first apex formed with the raked face is grounded and removed to forma a bonding member. | 01-07-2010 |
20100014931 | METHOD FOR DISTRIBUTING GRANULAR COMPONENTS IN POLYCRYSTALLINE DIAMOND COMPOSITES - A method and apparatus for distributing granular constituents within polycrystalline diamond composites is disclosed in one embodiment of the invention as including providing a mixture of diamond particles of various different sizes. This mixture is then agitated to substantially segregate the diamond particles within the mixture according to particle size. The segregated mixture may then be sintered to fuse the diamond particles together and thereby immobilize the diamond particles within the mixture. In selected embodiments, the mixture may be agitated while adjacent to a substrate material. The mixture may be fused to the substrate when the diamond particles are sintered. | 01-21-2010 |
20100034603 | Surface Coated Tool and Method of Working Cutting Object - A surface coated tool comprises a substrate and a coating layer superimposed on the surface of the substrate and containing Ti and W in the form of nitride or carbonitride. The coating layer comprises a matrix and dispersed particles dispersed into the matrix. The W content of the dispersed particles is larger than the W content of the matrix, and a difference in the W content between the matrix and the dispersed particles is larger than a difference in other ingredient content. A cutting tool consisting of the surface coated tool and having a cutting edge is prepared, and the cutting edge of the cutting tool is brought into contact with a cutting object, and the cutting object is cut by the cutting tool. | 02-11-2010 |
20100040423 | INDEXABLE INSERT - An indexable insert ( | 02-18-2010 |
20100040424 | INSERT AND CUTTING TOOL - An insert includes a silicon nitride sintered body including β-Si | 02-18-2010 |
20100086370 | SURFACE COATING FILM, METHOD OF MANUFACTURING THEREOF, CUTTING TOOL AND MACHINE TOOL - Provided is a surface coating film having a high degree of hardness and an excellent oxidation-resistance, and a method of manufacturing thereof, a cutting tool and a cutting machine. In the surface coating film, an oxidation-resistance layer containing, as a main component, a complex oxide of Li and at least Al, is coated on the outer surface of a base material, direct thereonto or through the intermediary of a highly hard coating layer. Further, in a method of manufacturing a surface coating film, the base material as it is or a highly hard coating layer coated substance in which a highly hard coating layer is coated on the outer surface of the base material is supported in a hermetic container with the use of a holder arranged in the container, then a complex oxide forming target formed from an Li and at least Al as main components, is arranged in the container into which oxygen is then fed, and en electric discharge is effected between the complex oxide forming target as an anode and the holder as a cathode so as to form an oxidation-resistance layer on the outer surface of the base material or the highly hard coating layer coated substance. | 04-08-2010 |
20100098506 | CEMENTED CARBIDE, CUTTING TOOL, AND CUTTING DEVICE - The invention relates to a cemented carbide material having a hard phase including tungsten carbide (WC) grains having an average grain size of 0.3 microns or less and also including cobalt (Co) as a bonding phase. The material also includes cobalt tungsten carbide grains that have a smaller average grain size than that of the tungsten carbide grains. The cemented carbide material has use, among others, in making cutting tools. | 04-22-2010 |
20100119315 | MULTILAYER CVD COATING - The CVD coating has at least one layer composed of a metallic hard material layer X having a thickness of from 10 to 90 nm and at least one further layer composed of a boron-doped metallic hard material layer Y having a boron content of from 0.005 to 5 atom % and a thickness of from 10 to 90 nm. At least one layer X adjoins a layer Y. Coatings according to the invention display a significantly improved wear resistance. | 05-13-2010 |
20100129168 | CUTTING TOOL - An object of embodiments according to the invention is to provide a cutting tool having good wear resistance, good sliding property and good fracture resistance. | 05-27-2010 |
20100135738 | COATED CUTTING TOOL AND A METHOD OF MAKING THEREOF - The present invention relates to a cutting tool for metal machining with improved wear properties, comprising a cutting tool substrate of cemented carbide, cermet, ceramics or a super hard material, and a wear resistant coating, wherein the wear resistant coating comprises a PVD Ti—Si—C—N layer, and a method of making thereof. | 06-03-2010 |
20100166512 | Cutting Tool, Manufacturing Method Thereof and Cutting Method - Disclosed is a cutting tool having excellent wear resistance. Specifically disclosed is a cutting tool having a substrate and a coating layer formed on a surface of the substrate. The cutting tool is characterized in that the substrate contains at least cobalt; the coating layer includes at least a titanium nitride layer formed on the surface of the substrate, a titanium carbonitride layer formed on the surface of the titanium nitride layer, an intermediate layer formed on the surface of the titanium carbonitride layer and an aluminum oxide layer formed on the surface of the intermediate layer; the intermediate layer contains at least oxygen and titanium, and the aluminum oxide layer incorporates particles composed mainly of cobalt. | 07-01-2010 |
20100232891 | DIAMOND TOOL FABRICATED BY COMBINING MESH NET WITH SYNTHETIC RESIN MATERIAL - Disclosed therein is a diamond tool fabricated by combining a mesh net with a synthetic resin material, which includes a diamond sintered body integrally coupled with the outer surface of the mesh net and a synthetic resin material impregnated into the inner surface of the mesh net, thereby maximizing a bonding strength and minimizing weight. The diamond tool includes: a diamond sintered body having a diamond tip; a mesh net integrally coupled with the sintered body in such a way that a portion of the sintered body is impregnated therewith; and a synthetic resin material for forming a body in such a way as to couple the mesh net with the circumference of the sintered body to thereby expose the sintered body to the outside. | 09-16-2010 |
20100232892 | COATED CUTTING TOOL FOR MEDIUM-ROUGH TO ROUGH TURNING OF STAINLESS STEELS AND SUPERALLOYS - The present invention relates to a cutting tool insert comprising a cemented carbide body and a coating particularly useful in medium-rough to rough turning of stainless-steels and superalloys. The cemented carbide body consists of a cemented carbide with a composition of 7.0-12.0 wt-% Co, 5.0-11.0 wt-% cubic carbide forming metals from group IVb, Vb and VIb of the periodic table, preferably Ti, Nb and Ta, and balance WC with a 10-30 mum essentially cubic carbide phase free and binder phase enriched surface zone. The coating comprises an MTCVD Ti(C7N) as the first layer adjacent the body having a thickness of from 2.5 to 7.0 μm, on top of which an α-Al | 09-16-2010 |
20100232893 | INDEXABLE INSERT - An indexable insert according to the present invention includes a substrate and a coating layer formed on the substrate, the coating layer is formed of a plurality of layers including at least a TiCN layer, at least one of the plurality of layers is provided with compressive residual stress, the TiCN layer is mainly composed of TiCN and has highest peak intensity in a (422) plane and second peak intensity in a (311) plane in X-ray diffraction, and a ratio of peak intensity I(422)/I(311) between peak intensity I(422) of the (422) plane and peak intensity I(311) of the (311) plane is not lower than 1.1 and not higher than 10. | 09-16-2010 |
20100239380 | CARBON SHAFTED REAMING DEVICE - A carbon shafted reaming device includes a rod element, an interface element and a connecting agent. The rod element comprises a first connecting portion having a carbon fiber reinforced structure, wherein the interface element comprises a second connecting portion. The first connecting portion and the second connecting portion are concentrically arranged to each other, and wherein the connecting agent is interposed between the first connecting portion and the second connecting portion. Either of the rod element and the interface element may be coupled to a reaming tool or a drive. | 09-23-2010 |
20100260560 | COATED TOOL - The invention concerns a cutting tool having a base body and a single-layer or multi-layer coating applied thereto. To provide cutting tools which are improved over the state of the art it is proposed according to the invention that the coating includes at least one two-phase or multi-phase layer which contains at least two different phases of metal oxide, wherein the at least one two-phase or multi-phase layer is electrically conductive. | 10-14-2010 |
20100260561 | SURFACE COATED CUTTING TOOL - A surface-coated cutting tool of the present invention includes a substrate and a coated layer formed on the substrate, and the coated layer is a physical-vapor-deposition layer having a thickness of 10 μm or more. A surface region having a thickness of 1 μm from a surface of the coated layer includes a first region whose integrated residual stress is a compressive stress and a second region whose integrated residual stress is a tensile stress, and the integrated residual stress of the surface region falls within the range of −1.5 to 1.5 GPa in any region included in the surface region. | 10-14-2010 |
20100296883 | Cutting Tool Coated with a Diamond-Like Carbon Multilayer - A coated cutting tool is at least partially coated with a diamond-like carbon (DLC) multilayer of alternating DLC layers and metal nanolayers sandwiched between the DLC layers. The nanolayer comprises a metal or a metal alloy comprising two or more elements selected from of groups IVB, VB, VIB of the periodic table, Al, and Si. Each DLC layer has a thickness of at least 0.2 microns thick and the coating has a thickness of from about 0.5 microns to about 30 microns. | 11-25-2010 |
20100303564 | NANOCOMPOSITE COATINGS ON CEMENTED CARBIDE - A method of creating adherent, fracture-toughened polycrystalline diamond coatings on carbide cutting tools or other workpiece substrates through the development of composite coatings comprising polycrystalline diamond and carbon nanotubes is described. The coating is deposited through a chemical vapor deposition process using a pre-determined hydrocarbon-hydrogen gas mixture suitable for nucleating diamond on the carbide particles and carbon nanotubes on the metallic binder. The deposited coating, which may be up to 30 micrometers in thickness, is typically characterized by a diamond or diamond-like carbon matrix in which carbon nanotubes are distributed as fiber-like filler materials. | 12-02-2010 |
20100303565 | HIGH HARDNESS NANOCOMPOSITE COATINGS ON CEMENTED CARBIDE - A method of creating adherent surface coatings on carbide cutting tools or other workpiece substrates through the development of polycrystalline diamond coatings or composite coatings comprising a refractory metal carbide and polycrystalline diamond is described. The coating is deposited through a sequenced chemical vapor deposition process, first using a specified gas mixture of hydrogen and a refractory metal halide to deposit a base layer of a refractory metal carbide. This step is followed by a second step in which polycrystalline diamond is deposited from a gas mixture comprising a hydrocarbon and hydrogen. Co-deposition of refractory metal carbide and diamond in the second step to create a toughened diamond coating is also contemplated. | 12-02-2010 |
20100303566 | Composite Articles - A composite article includes a first composite material and a second composite material. The first composite material and the second composite material individually comprise hard particles in a binder. A concentration of ruthenium in the binder of the first composite material is different from a concentration of ruthenium in the binder of the second composite material. | 12-02-2010 |
20110002749 | COATED CUTTING TOOL INSERT - A coated cutting tool includes a coating and a substrate. The substrate is at least partly coated with a 4-10 μm thick coating comprising two adjacent Ti(C,N)-layers where the difference (Δ) between the residual stress state of the inner layer and the residual stress state of the outer layer is 1000 MPa≦Δ≦2500 MPa, on at least a part of the cutting edge and/or on at least a part of the rake face. A method to produce such a difference between the residual stress states is also disclosed. | 01-06-2011 |
20110044775 | OXIDE COATED CUTTING INSERT - A cutting tool insert includes a body of a hard alloy of cemented carbide, cermet, ceramics, cubic boron nitride based material or high speed steel a hard and wear resistant coating, including one or several layers, at least one of which is an (Al,Cr) | 02-24-2011 |
20110058909 | Cutting Tool - A cutting tool is disclosed. The cutting tool comprises a substrate and a coating layer on the substrate. The coating layer consists of nitride or carbonitride containing Ti and Al, and has a thickness of 3 to 9 μm on a flank face. A first intensity ratio I(400)/I(311) of the coating layer on an outer surface is larger than the first intensity ratio of the coating layer on the substrate side. | 03-10-2011 |
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 |
20110129312 | Cutting Tool - Provided is a cutting tool which comprises a sintered cermet having high toughness and thermal shock resistance. The cutting tool, namely a tip | 06-02-2011 |
20110182681 | TOOL HAVING A METAL OXIDE COATING - The invention concerns a cutting tool comprising a base body and a multi-layer coating applied thereto, which, possibly besides further layers, includes a plurality of main layers A and intermediate layers B applied alternately directly one upon the other, wherein the main layers A and the intermediate layers B are respectively metal oxide layers produced by the PVD process, the thickness of the main layers A is in the range of 4 nm to 1 μm, and the thickness of the intermediate layers B is in the range of 2 nm to 50 nm, wherein the ratio of the thicknesses of the intermediate layers B to the thicknesses of the main layers A is in the range of 1:2 to 1:100. | 07-28-2011 |
20110182682 | CUTTING INSERT AND CUTTING TOOL - Provided are a cutting insert and a cutting tool, capable of maintaining cutting performance for a long time. The cutting insert has a cutting blade made of a ceramic including the base and the cutting blade integrated with each other, wherein the base has a first coefficient of thermal expansion larger than a second coefficient of thermal expansion that the cutting blade has; and a difference between the first coefficient and the second coefficient is from more than 0 ppm/K to not more than 3 ppm/K. | 07-28-2011 |
20110206470 | Surface-Coated Tool - Provided is a surface-coated tool, such as a cutting tool, in which a surface of a substrate | 08-25-2011 |
20110262233 | COATED TOOL AND A METHOD OF MAKING THEREOF - The present invention relates to a tool for metal machining comprising a tool substrate of cemented carbide, cermet, ceramics or a super hard material, and a coating comprising an inner alumina layer and an outer titanium boronitride layer, wherein said layers are separated by one or more layers comprising an oxide layer other than an alumina layer, and a method of making the tool. | 10-27-2011 |
20120093597 | Cemented Carbide Tools - The present invention relates to a cemented carbide with a homogeneous and dense microstructure of hard constituents in a well distributed binder phase based on Co and/or Ni with a porosity of AOO-BOO according to ISO 4505. The cemented carbide has a nanoporosity of less than 2.5 pores/1000 μm | 04-19-2012 |
20120114436 | NANOLAMINATED COATED CUTTING TOOL - A cutting tool insert for machining by chip removal includes a body of a hard alloy of cemented carbide, cermet, ceramics, cubic boron nitride based material or high speed steel, onto which a hard and wear resistant coating is deposited by physical vapour deposition. The coating includes a polycrystalline nanolaminated structure of alternating layers A and B where layer A is (Ti,Al,Me1)N and Me1 is optionally one or more of the metal elements from group 3, 4, 5 or 6 in the periodic table, layer B is (Ti,Si,Me2)N and Me2 is optionally one or more of the metal elements from group 3, 4, 5 or 6 in the periodic table including Al with a thickness between 0.5 and 20 μm and method of making the same. This insert is particularly useful in metal cutting applications generating high temperatures with improved edge integrity, machining of super alloys, stainless and hardened steels. | 05-10-2012 |
20120114437 | NANOLAMINATED COATED CUTTING TOOL - A cutting tool insert for machining by chip removal includes a body of polycrystalline cubic boron nitride compact (PCBN), either as a solid insert or attached to a backing body, onto which a hard and wear resistant PVD coating is deposited. The coating includes a polycrystalline nanolaminated structure of alternating A and B layers, where layer A is (Ti,Al,Me1)N and Me1 is one or more of the metal elements from group 3, 4, 5 or 6 in the periodic table, layer B is (Ti,Si,Me2)N and Me2 is one or more of the metal elements from group 3, 4, 5 or 6 in the periodic table including Al with a thickness between 0.5 and 10 μm. The insert is particularly useful in metal cutting applications generating high temperatures, e.g., high speed machining of steels, cast irons, super alloys and hardened steels. | 05-10-2012 |
20120170988 | Method of Producing Holes and Countersinks in Polycrystalline Bodies - A method of producing at least one through-hole and countersink in at least one ultrahard insert including the steps of providing a body having a first major surface and an opposite second major surface; forming at least one pilot hole in said body using a laser, wherein said at least one pilot hole extends from said first major surface to the opposite second major surface of said body; cutting said pilot hole using a wire electrical discharge machine (WEDM) to produce a straight cylindrical portion and top conical portion; forming a countersink on at least one side of said body using an electrical discharge grinding machine (EDG); and severing said at least one ultrahard insert from said body forming a finished insert, wherein said finished insert includes a through-hole and a countersink. | 07-05-2012 |
20120177453 | HARD-METAL BODY - The invention relates to hard-metal body comprising a hard-metal, the hard-metal comprising tungsten carbide grains and metal binder comprising cobalt having a concentration of tungsten dissolved therein, the body comprising a surface region adjacent a surface and a core region remote from the surface, the surface region and the core region being contiguous with each other; the mean binder fraction of the core region being greater than that of the surface region; the mean carbon concentration within the binder being higher in the surface region than in the core region; to tools comprising same and methods of making same. | 07-12-2012 |
20120230786 | CUBIC BORON NITRIDE SINTERED BODY AND CUBIC BORON NITRIDE SINTERED BODY TOOL - cBN sintered body includes cBN and a binder phase, wherein a content of the cBN is 82-98 volume %, and in a cross section of the cBN sintered body, an isolated binder phase having an area of 0.05-0.5 μm | 09-13-2012 |
20120243951 | CUTTING TOOL FOR MACHINING METALLIC MATERIALS - A cutting tool for metal material processing has a hard metal body and a multi-layer coating applied to the hard metal body in at least one surface area. The multi-layer coating includes the following, sequentially in direction from the hard metal body to the surface of the cutting tool: at least one layer TiC | 09-27-2012 |
20120269589 | SURFACE COATED CUTTING TOOL WITH EXCELLENT CHIPPING RESISTANCE - Provided is a surface coated cutting tool in which a hard coating layer exhibits excellent chipping resistance in high-speed intermittent cutting processes. In the surface coated cutting tool having the hard coating layer including a lower layer (Ti compound layer) and an upper layer (Al | 10-25-2012 |
20120275870 | SURFACE-COATED CUTTING TOOL AND MANUFACTURING METHOD THEREOF - A surface-coated cutting tool according to the present invention includes a base material and a coating film formed on the base material. The coating film includes at least one TiCN layer. The TiCN layer has a columnar crystal region. The columnar crystal region is characterized by having a composition of TiC | 11-01-2012 |
20120282051 | Composite Cemented Carbide Rotary Cutting Tools and Rotary Cutting Tool Blanks - Composite articles, including composite rotary cutting tools and composite rotary cutting tool blanks, and methods of making the articles are disclosed. The composite article includes an elongate portion. The elongate portion includes a first region composed of a first cemented carbide, and a second region autogenously bonded to the first region and composed of a second cemented carbide. At least one of the first cemented carbide and the second cemented carbide is a hybrid cemented carbide that includes a cemented carbide dispersed phase and a cemented carbide continuous phase. At least one of the cemented carbide dispersed phase and the cemented carbide continuous phase includes at least 0.5 percent by weight of cubic carbide based on the weight of the phase including the cubic carbide. | 11-08-2012 |
20130045057 | SURFACE-COATED CUTTING TOOL - A surface-coated cutting tool excellent in wear resistance is provided. The surface-coated cutting tool of the present invention includes a base material and a coating formed on the base material. The coating includes an inner layer and an outer layer. The inner layer is a single layer or a multilayer stack constituted of two or more layers made of at least one element selected from the group consisting of group IVa elements, group Va elements, group VIa elements in the periodic table, Al, and Si, or a compound of at least one element selected from this group and at least one element selected from the group consisting of carbon, nitrogen, oxygen, and boron. The outer layer includes α-aluminum oxide as a main component and exhibits an equivalent peak intensity PR(024) of a (024) plane of x-ray diffraction of larger than 1.3. | 02-21-2013 |
20130101365 | SURFACE-COATED CUTTING TOOL - The surface-coated cutting tool of the present invention is characterized in that a region of 10 μm in a surface of the base material from point a′ to point b′ has two to seven cracks with a width of not more than 200 nm, or two to ten pores are present per length of 10 μm in the surface of the base material from point a′ to point b′, where points a′ and b′ are points defined respectively by lines drawn perpendicularly from points a and b to the surface of the base material where point a is a position located away from an edge ridgeline toward a rake face by distance La and point b is a position located away from the edge ridgeline toward a flank face by distance Lb. | 04-25-2013 |
20130115018 | Coated Cutting Tool, Cutting Member or Wear Part - A coated metal substrate has at least one layer of titanium based hard material alloyed with at least one alloying element selected from the list of chromium, vanadium and silicon. The total quantity of alloying elements is between 1% and 50% of the metal content, the layer having a general formula of: (Ti | 05-09-2013 |
20130156517 | TEXTURED ALUMINA LAYER - A cutting tool insert for machining by chip removal comprising a body of a hard alloy of cemented carbide, cermet, ceramics or cubic boron nitride based material onto which a hard and wear resistant coating is deposited by CVD, and the methods of making and using the same. The coating includes at least one α-Al | 06-20-2013 |
20130236259 | SINTERED BODY AND CUTTING TOOL - A sintered body containing alumina crystal particles and zirconia crystal particles as main components includes the tetragonal crystal particles as the zirconia crystal particles. The zirconia crystal particles satisfy relations 0%≦A≦3%, 3%≦B≦22% and 77%≦C≦96%, where A, B and C are as defined herein. | 09-12-2013 |
20130279998 | SURFACE-COATED CUTTING TOOL - A surface-coated cutting tool excellent in wear resistance is provided. The surface-coated cutting tool of the present invention includes a base material and a coating formed on the base material. The coating includes an inner layer and an outer layer. The inner layer is a single layer or a multilayer stack constituted of two or more layers made of at least one element selected from the group consisting of group IVa elements, group Va elements, group VIa elements in the periodic table, Al, and Si, or a compound of at least one element selected from this group and at least one element selected from the group consisting of carbon, nitrogen, oxygen, and boron. The outer layer includes α-aluminum oxide as a main component and exhibits an equivalent peak intensity PR(024) of a (024) plane of x-ray diffraction of larger than 1.3. | 10-24-2013 |
20130287507 | COATED CUTTING TOOL INSERT - A cutting tool insert for machining by chip removal includes a body of a hard alloy of cemented carbide, cermet, ceramics, polycrystalline diamond or cubic boron nitride based materials onto which a hard and wear resistant coating is deposited by physical vapour deposition (PVD). The coating includes at least one layer of a NaCl-structured (Ti | 10-31-2013 |
20140147221 | Target For ARC Processes - A target for the deposition of mixed crystal layers with at least two different metals on a substrate by means of arc vapor deposition (arc PVD), wherein the target includes at least two different metals. To produce mixed crystal layers which are as free as possible of macroparticles (droplets) according to the invention at least the metal with the lowest melting point is present in the target in a ceramic compound, namely as a metal oxide, metal carbide, metal nitride, metal carbonitride, metal oxynitride, metal oxycarbide, metal oxycarbonitride, metal boride, metal boronitride, metal borocarbide, metal borocarbonitride, metal borooxynitride, metal borooxocarbide, metal borooxocarbonitride, metal oxoboronitride, metal silicate or mixture thereof, and at least one metal different from the metal with the lowest melting point is present in the target in elemental (metallic) form. | 05-29-2014 |
20140178138 | SINTERED COMPACT, CUTTING TOOL FORMED USING SINTERED COMPACT, AND METHOD FOR MANUFACTURING SINTERED COMPACT - A sintered compact contains cubic sialon, β-sialon, and at least one of a first component and a second component. The first component is at least one element selected from the group consisting of iron, cobalt, nickel, and group 4 elements, group 5 elements, and group 6 elements of the periodic table. The second component is at least one compound containing at least one element selected from the group consisting of group 4 elements, group 5 elements, and group 6 elements and at least one element selected from the group consisting of carbon, nitrogen, and boron. | 06-26-2014 |
20140178139 | METHOD OF MANUFACTURING SUPER HARD ALLOY CONTAINING CARBON NANOTUBES, SUPER HARD ALLOY MANUFACTURED USING SAME, AND CUTTING TOOL COMPRISING SUPER HARD ALLOY - Disclosed is a method of manufacturing a super hard alloy containing carbon nanotubes, including (a) forming a carbon nanotube-metal composite from carbon nanotubes and metal powder, (b) mixing the carbon nanotube-metal composite obtained in (a) with hard-phase powder, (c) molding the powder mixture obtained in (b), and (d) sintering the molded body obtained in (c). In the method of the invention, the reaction between carbon nanotubes and transition metal carbide in the super hard alloy is minimized, thus maximizing an increase in toughness by virtue of the addition of carbon nanotubes, thereby obtaining the super hard alloy having both high hardness and high toughness. The super hard alloy containing carbon nanotubes manufactured using the method of the invention has high hardness and high toughness, and thus can be effectively utilized in cutting tools, molds, wear-resistant members, heat-resistant structural materials, etc. | 06-26-2014 |
20140199130 | CVD Coated Polycrystalline c-BN Cutting Tools - CVD coated cutting tools are provided. A coated cutting tool described herein, in some embodiments, comprises a PcBN substrate and a polished coating adhered to the substrate including one or more layers of Al | 07-17-2014 |
20140271000 | CUTTING TOOL - A cutting tool including a base member and a coating layer. The base member includes a rake face and a flank face. The coating layer has a composition represented by a first chemical formula of Cr | 09-18-2014 |
20140308083 | COATED CUTTING TOOL AND METHOD OF MANUFACTURING THE SAME - A coated cutting tool includes a substrate and a surface coating, wherein the coating is a Ti(C,N,O) layer comprising at least one columnar fine-grained MTCVD Ti(C,N) layer with an average grain width of 0.05-0.4 μm and an atomic ratio of carbon to the sum of carbon and nitrogen (C/(C+N)) contained in the MTCVD Ti(C,N) layer being on average 0.50-0.65. A method for manufacturing the coated cutting tool includes depositing the MTCVD Ti(C,N) layer. | 10-16-2014 |
20140328637 | METHOD FOR MASKING AND COATING CUTTING TOOL AND CUTTING TOOL HAVING WEAR-RESISTANT COATING IN SELECTED LOCATIONS - A method in which a cutting tip of an intermediate cutting tool is masked and a wear-resistant material is deposited onto the exposed portion of the intermediate cutting tool to form a sharpened cutting tool. A finished cutting tool is also provided. | 11-06-2014 |
20140341664 | DIAMOND COATED TOOL - A diamond coated tool according to the present invention includes a base material, and a diamond layer coating a surface of the base material, the diamond layer containing a diamond, 1.0×10 | 11-20-2014 |
20140377023 | COATED CUTTING TOOL - The present invention provides a coated cutting tool comprising a substrate and a coating, where the coating comprises at least one compound layer deposited by cathodic arc deposition, which has a thickness of 10-30 μm characterized in that the coating has internal stress ranges from low tensile stresses, lower than 0.2 GPa, to compressive stresses, lower than 3 GPa. | 12-25-2014 |
20140377024 | SURFACE-COATED CUTTING TOOL WITH HARD COATING LAYER EXHIBITING EXCELLENT CHIPPING RESISTANCE AND WEAR RESISTANCE - A surface-coated cutting tool with a hard coating layer exhibits excellent chipping resistance and wear resistance in a high-speed cutting process. The surface-coated cutting tool comprises a lower layer consisting of a titanium compound layer and an upper layer consisting of an aluminum oxide layer deposited on a surface of a tool substrate constituted of a tungsten carbide-based cemented carbide as a hard coating layer. In the upper layer, a (006) plane texture coefficient TC(006) is 1.8 or more, a ratio I(104)/I(110) of a peak intensity I(104) of an (104) plane to a peak intensity I(110) of an (110) plane is in a range of 0.5 to 2.0, and furthermore, an absolute value of a residual stress in the aluminum oxide layer is 100 MPa or less. | 12-25-2014 |
20150023745 | CUTTING TOOL - A cutting tool includes a substrate composed of a cermet. The cermet includes a hard phase including compounds containing Ti, at least one metal other than Ti selected from groups 4, 5, and 6 of the periodic table, and at least one element of carbon and nitrogen, a binder phase including, as a main component, an iron group metal, and unavoidable impurities. At least one type of particles selected from alumina particles and zirconia particles with an average particle size of 0.5 μm or more and 5 μm or less is scattered over a surface of a rake face of the substrate, and the concentration of at least one element of aluminum and zirconium in the surface is | 01-22-2015 |
20150030401 | SURFACE COATING CUTTING TOOL - A surface-coated cutting tool with a body and hard coating layer is provided. (a) The hard coating layer is made of a complex nitride layer of Al and Cr. (b) The hard coating layer deposited on a region from a cutting edge to a location 100 μm from the cutting edge toward an opposite side thereof has a granular crystal structure. The average grain size of granular crystals on a surface of the hard coating layer on the region is 0.2-0.5 μm. The average grain size of granular crystals at an interface between the cutting tool body and the hard coating layer on the region is smaller than the average grain size on the surface the hard coating layer in an extent of 0.02-0.1 μm. The crystal grain size length ratio of crystal grains whose size is 0.15-20% or less. | 01-29-2015 |
20150063930 | METHOD OF MAKING A CEMENTED CARBIDE - The present invention relates to a method of making a cemented carbide comprising mixing in a slurry a first powder fraction and a second powder fraction, subjecting the slurry to milling, drying, pressing and sintering. The first powder fraction is made from cemented carbide scrap recycled using the Zn recovery process, comprising the elements W, C, Co, and at least one or more of Ta, Ti, Nb, Cr, Zr, Hf and Mo, and the second powder fraction comprising virgin raw materials of WC and possibly carbides and/or carbonitrides of one or more of Cr, Zr, W, Ta, Ti, Hf and Nb. The first powder fraction is subjected to a pre-milling step, prior to the step of forming the slurry, to obtain an average grain size of between 0.2 to 1.5 μm. | 03-05-2015 |
20150132076 | CUTTING TOOL MADE OF CUBIC BORON NITRIDE-BASED SINTERED MATERIAL - A cBN tool that exhibits: excellent chipping resistance and wear resistance; and excellent cutting performance, for a long term use even in intermittent cutting work on high hardened steel is provided. The cutting tool includes a cutting tool body that is a cubic boron nitride-based material containing cubic boron nitride particles as a hard phase component. In the cutting tool, the cubic boron nitride particles includes an Al | 05-14-2015 |
20150299866 | SURFACE-COATING MATERIAL, CUTTING TOOL IN WHICH SAID MATERIAL IS USED, AND WORKING MACHINE IN WHICH SAID MATERIAL IS USED - The present invention provides a surface-coating material capable of exhibiting high peeling resistance and high chipping resistance. A surface-coating material is provided with a base material, a bottom layer, and a top layer. The base material comprises high-speed tool steel or cemented carbide. The bottom layer is provided on the surface of the base material and comprises at least one nitride of titanium, aluminum, chromium, and zirconium. The top layer is provided on the surface of the bottom layer and is formed by alternatingly laminating an A layer and/or a B layer. The A layer comprises a nitride of aluminum, chromium, and silicon. The B layer comprises a nitride of aluminum, chromium, and yttrium. | 10-22-2015 |
20150328691 | COMPOSITE SINTERED BODY - A composite sintered body according to the present invention contains at least cubic boron nitride and a binder. Cubic boron nitride has a continuous skeleton structure as a result of bonding of a plurality of first cubic boron nitride particles to each other. The binder has a continuous structure as a result of bonding of a plurality of binder particles to each other, that are present in a region except for a bonding interface where the first cubic boron nitride particles are bonded to each other. Second cubic boron nitride particles isolated from the first cubic boron nitride particles forming the skeleton structure are dispersed in the continuous structure of the binder particles. | 11-19-2015 |
20160001375 | SURFACE-COATED CUTTING TOOL - A surface-coated cutting tool includes a lower layer including a Ti compound layer, an intermediate layer including an α-Al | 01-07-2016 |
20160002772 | SURFACE-COATED CUTTING TOOL AND PROCESS FOR PRODUCING SAME - Provided is a surface-coated cutting tool having both high wear resistance and high fracture resistance and having an indicator function that significantly facilitates the determination of the usage of a cutting edge. A surface-coated cutting tool according to an embodiment of the present invention includes a substrate and a coating formed on the substrate. The coating includes a plurality of layers. A surface layer of the plurality of layers is a titanium boride layer made of Ti | 01-07-2016 |
20160008891 | CUTTING TOOL | 01-14-2016 |
20160017499 | COATED CUTTING TOOL - A coated cutting tool has a substrate and a coating layer. At least one layer of the coating layer is a coarse grain layer with an average layer thickness of 0.2 to 10 μm and an average grain diameter in excess of 200 nm measured at the direction parallel to the interface of the coating layer. A composition of the layer is represented by (Al | 01-21-2016 |
20160032444 | COATED CUTTING TOOL AND A METHOD OF PRODUCING A COATED CUTTING TOOL - The present disclosure relates to a coated cutting tool including a substrate and a coating disposed on the substrate, wherein the coating includes a layer of Ti | 02-04-2016 |
20160039010 | SURFACE-COATED BORON NITRIDE SINTERED BODY TOOL - In a surface-coated boron nitride sintered body tool, at least a cutting edge portion contains a cubic boron nitride sintered body and a coating layer formed on a surface of the cubic boron nitride sintered body. A layer B of the coating layer is formed by alternately laminating one or more layers of each of two or more compound layers having different compositions. Each of the compound layers has a thickness not less than 0.5 nm and less than 30 nm. | 02-11-2016 |
20160040285 | SURFACE COATED CUTTING TOOL - A hard coating layer on a cutting tool includes at least a Ti and Al complex nitride or carbonitride layer and has an average layer thickness of 1 to 20 μm. In a case where a composition of the complex nitride or carbonitride layer is expressed by: (Ti | 02-11-2016 |
20160068449 | CUTTING TOOL - A cutting tool includes a base material and a coating formed on the base material. The base material is a sintered body containing 30 to 80% by volume of cubic boron nitride, and a binder. The surface in contact with the coating, of the base material, has a plurality of convex portions made of the cubic boron nitride and a plurality of concave portions made of the binder. A surface roughness Rsub of the surface in contact with the base material, is 0.1 to 0.4 μm. A surface roughness Rsurf of an outermost surface of the coating is 0 to 0.15 μm. A surface roughness Rasurf of the outermost surface of the coating is 0 to 0.1 μm. The surface roughness Rsub of the surface in contact with the coating, of the base material, is greater than the surface roughness Rsurf of the outermost surface of the coating. | 03-10-2016 |
20160114400 | SURFACE-COATED BORON NITRIDE SINTERED BODY TOOL - A surface-coated boron nitride sintered body tool is provided, in which at least a cutting edge portion includes a cubic boron nitride sintered body and a coating film formed on a surface of the cubic boron nitride sintered body. The coating film contains Si and includes a B layer formed by alternately stacking one or more of each of a B1 compound layer and a B2 compound layer that are different in composition. A ratio between an average thickness t | 04-28-2016 |
20160115087 | SURFACE-COATED BORON NITRIDE SINTERED BODY TOOL - A surface-coated boron nitride sintered body tool is provided, in which at least a cutting edge portion includes a cubic boron nitride sintered body and a coating film formed on the cubic boron nitride sintered body. The coating film includes an A layer, a B layer and a C layer. The C layer is provided between the A layer and the B layer. The A layer contains Ti and the like. The B layer is formed by alternately stacking a B1 compound layer containing Ti, Si and the like and a B2 compound layer containing Al and the like. The C layer includes McLc | 04-28-2016 |
20160136735 | SURFACE-COATED BORON NITRIDE SINTERED BODY TOOL - A surface-coated boron nitride sintered body tool is provided, in which a cutting edge portion includes a compound sintered body and a coating layer. The compound sintered body includes cBN particles. The compound sintered body includes 45-80 vol % of cBN particles. A first particle size distribution curve of the cBN particles has one or more peaks in a range in which a particle size is 0.1-0.7 μm. A second particle size distribution curve of the cBN particles has a first peak having a maximum peak height in a range in which the particle size is 2.0-7.0 μm. An integral value ratio (I | 05-19-2016 |
20160375497 | CUTTING TOOL MADE OF DIAMOND-COATED CEMENTED CARBIDE AND METHOD FOR PRODUCING THE SAME - A cutting tool made of diamond-coated cemented carbide includes: a tool body made of tungsten carbide-based cemented carbide including: 3 to 15 mass % of Co; at least one of TaC and NbC of which a total amount is 0.1 to 3.0 mass %; and a balance including WC; and a diamond film coating the tool body, the tool body has a plurality of protrusions on a surface of the tool body, an upper portion of each of the protrusions is made of the at least one of TaC and NbC, and a lower portion of each of the protrusions is made of WC and Co, the lower portion being under the upper portion. | 12-29-2016 |
20180021858 | SURFACE-COATED CUTTING TOOL | 01-25-2018 |