This laser processing apparatus comprises a laser emission unit, a holding unit, and a control unit. The laser emission unit emits a laser beam in a first direction toward a workpiece. The holding unit is capable of holding a workpiece in a detachable manner in a state of maintaining the orientation of the workpiece, and of moving the workpiece in a direction along the first direction. The control unit controls the operation of the laser emission unit and the holding unit. The laser emission unit has a laser generator, an Fθ lens, and a galvano mirror. The Fθ lens is fixed in an orientation that allows the laser beam to be emitted in the first direction. The control unit alternately performs a laser beam emission step and a movement step for, in a state in which emission of the laser beam toward the workpiece is suspended, moving the holding unit, which is holding the workpiece, in a direction along the first direction.
Co in mass %, a is more than 0 and 8 or less, b represents an area percentage of pore in a first region of the cemented carbide, and the first region is a region located within a distance of 50 μm from a surface of the cemented carbide in the cross section.
B23B 27/14 - Cutting tools of which the bits or tips are of special material
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
This variable light beam shaper comprises a diffractive optical system. The diffractive optical system includes a first diffractive optical element and a second diffractive optical element. The diffractive optical system generates a center spot beam from a first beam and generates a ring beam around the center spot beam from a second beam. One of the first diffractive optical element and the second diffractive optical element is configured to be rotatable about the optical axis of the diffractive optical system with respect to the other one of the first diffractive optical element and the second diffractive optical element. The first diffractive optical element and the second diffractive optical element are a first spiral axicon diffractive optical element and a second spiral axicon diffractive optical element, or are a first spiral diffractive optical element and a second spiral diffractive optical element each having a periodic phase distribution in the radial direction.
A sintered body includes diamond particles and a binder. Each of the diamond particles has a boron concentration is 0.001 mass % to 0.1 mass %. The binder has a boron concentration of 0.01 mass % to 0.5 mass %.
A cutting tool comprising a rake face and a flank face, the cutting tool being composed of a substrate and a coating provided on the substrate, the coating including a MAlN layer, the MAlN layer including crystal grains of MxAl1-xN in the cubic crystal system, in the MxAl1-xN, a metal element M having an atomic ratio x of 0.2 or more and 0.8 or less, in the MAlN layer, M representing a metal element including titanium, chromium, or both, nR being 3 or less, where nR represents a number of voids at the rake face in the MAlN layer per 50 μm in length in a cross section of the MAlN layer obtained when the MAlN layer is cut along a plane including a normal to the rake face, the void having an area in cross section of 1.0×10−4 μm2 or more and 0.5 μm2 or less.
This drilling tool has a body part, a first cutting insert, and a second cutting insert. A first pocket has: a first lateral face connected with a front end face; a second lateral face that is connected to the front end face, is located more radially outward than the first lateral face, and faces the first lateral face; a third lateral face between a rear end face and each of the first and second lateral faces in a direction along an axis; and a seat surface where a bottom face contacts. A first raised part to be inserted into a recessed part is formed on the first lateral face, and a second raised part to be inserted into a recessed part is formed on the second lateral face. Provided that a first direction is the direction running from the center of the first raised part to the center of the second raised part and a second direction is the direction parallel to the axis and running from the rear end face to the front end face as seen along a line perpendicular to the seat surface, the angle between the first and second directions is greater than 45° and less than 135°.
This cutting tool has a body portion and a cutting edge layer. The body portion is rod-shaped. The cutting edge layer is provided at the front end of the body portion. The cutting edge layer forms a cutting edge. The body portion is formed of cemented carbide containing tungsten carbide and cobalt. The cutting edge layer is formed of polycrystalline diamond. In the cemented carbide, the percentage of a value obtained by dividing the weight of the tungsten carbide by the weight of the entire cemented carbide is 90.0-95.0%. In the cemented carbide, the percentage of a value obtained by dividing the weight of the cobalt by the weight of the entire cemented carbide is 4.0-9.0%.
A cemented carbide consisting of: a hard phase consisting of tungsten carbide grains; and a binder phase comprising cobalt, wherein a content of the hard phase in the cemented carbide is 91.5 to 97 mass %, a content of the cobalt in the cemented carbide is 3 to 8.5 mass %, the hard phase has an average grain size of 0.15 to 0.50 μm, the binder phase has an average grain size of 0.10 to 0.25 μm, in a histogram showing a grain size distribution of the hard phase, a number N1 is 7 to 10, wherein N1 is the number of classes having a frequency of 50% or more of the maximum frequency Fmax, the classes are 0.05 μm intervals, and the binder phase has a ratio of a 10% cumulative grain size D10 to a 90% cumulative grain size D90 on area basis, D10/D90, of 0.23 or more.
This holder is made of cemented carbide and has a front end surface, a rear end surface, a first side surface, a second side surface, a pressing surface, a first support surface, and a second support surface. The pressing surface presses the upper surface of a cutting insert. The first support surface supports the back surface of the cutting insert. The second support surface supports the bottom surface of the cutting insert. The holder is provided with a slit penetrating between the first side surface and the second side surface. The slit is formed by an upper end surface continuous with the pressing surface and a lower end surface continuous with each of the first support surface and the upper end surface. When viewed in a direction from the first side surface to the second side surface, the distance between the upper end surface and an upper side in a direction perpendicular to a bottom side increases monotonically from the front end surface toward the rear end surface in a range from a first position to a third position.
This cutting insert has: a first surface; a second surface; and an outer peripheral surface. The first surface has a first seat surface. The second surface has a second seat surface. The second seat surface is opposite to the first seat surface. The outer peripheral surface is contiguous to each of the first and second surfaces. A ridgeline between the first surface and the outer peripheral surface forms a first ridgeline. The first ridgeline has a first supported part, a first connection part, a first cutting blade part, a second connection part, and a second supported part. The first cutting blade part is inclined in a direction from the first seat surface toward the second seat surface with respect to a surface parallel to the second seat surface. When viewed perpendicularly to the first seat surface, a first linear cutting blade, a second linear cutting blade, the first supported part, and the second supported part are linear, and the angle formed between the first linear cutting blade and the second linear cutting blade is larger than the angle formed between the first supported part and the second supported part.
233, the second layer is composed of TiCN, the thickness of the second layer is at least 0.5 μm and less than 2.0 μm, and the residual stress X of the second layer is −2.0 GPa or greater and −0.5 GPa or less.
This cutting insert has a base member and a blade edge member. The blade edge member has a rake face and a flank face that is contiguous to the rake face. The ridgeline between the rake face and the flank face forms a cutting edge. The base member is provided with a flow passage through which a fluid passes. The base member has: a front end face at which the blade edge member is disposed; a back end face which is located opposite to the front end face; a first side face which is located between the front end face and the back end face and is provided with the inlet of the flow passage; and a second side face which is located opposite to the first side face and is provided with the outlet of the flow passage. The back end face has a planar shape. The first side face has a planar shape. A virtual plane along the back end face and a virtual plane along the first side face are perpendicular to each other. A vector parallel to the direction in which the fluid flows out of the outlet and which is the tangential direction of the outlet of the flow passage has a component in a first direction which is perpendicular to the back end face and directed toward the back end face from the front end face. Said component is positive.
3, the second layer is composed of TiCN, a thickness of the second layer is 0.5 μm or more and less than 2.0 μm, and a residual stress X of the second layer is −2.0 GPa or more and −0.5 GPa or less.
C23C 28/04 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and only coatings of inorganic non-metallic material
B23B 27/14 - Cutting tools of which the bits or tips are of special material
A drill according to the present invention rotates about an axis. The drill has a body. The body has a first body part, a second body part, and a connecting part. The first body part is positioned at the front end of the drill. A cutting edge is provided in the first body part. The second body part is positioned in the axial direction from the front end toward the rear end of the drill along the axis relative to the first body part. The connecting part is provided between the first body part and the second body part. The connecting part is contiguous with each of the first body part and the second body part. Twisted flutes are provided in a spiral shape around the axis in the first body part, the connecting part, and the second body part. When the diameter of the cutting edge is defined as a cutting edge diameter, the length of each of the twisted flutes in the axial direction is six times or more the cutting edge diameter. The first body part has a back taper. The maximum diameter of the second body part is greater than the cutting edge diameter.
A cutting insert includes a rake face, a flank face, and a cutting edge constituted of a ridgeline between the rake face and the flank face. The cutting edge has a first cutting edge portion for corner processing, a second cutting edge portion for low cut-in pulling processing, a third cutting edge portion for high cut-in pulling processing, a fourth cutting edge portion for finished-surface processing, a first connection cutting edge portion, a second connection cutting edge portion, and a third connection cutting edge portion. The fourth cutting edge portion is disposed between the first cutting edge portion and the second cutting edge portion. The second cutting edge portion is disposed between the fourth cutting edge portion and the third cutting edge portion. Each of the first cutting edge portion, the second cutting edge portion, and the fourth cutting edge portion has a curved shape.
This cemented carbide comprises a first hard phase, a plurality of second hard phases, and a binder phase. The first hard phase comprises a plurality of tungsten carbide particles, wherein the D10 of the particle diameter of the tungsten carbide particles is at least 0.40 μm and the D90 of the particle diameter of the tungsten carbide particles is not more than 2.00 μm. The second hard phase comprises at least one first compound selected from the group consisting of TaNbC, TaNbN, TaNbCN, TiCN, TiNbC, TiNbN, and TiNbCN. The cemented carbide contains at least 0.30 vol% and not more than 1.60 volume% of the second hard phase. In a cross section of the cemented carbide, the median value of the distance between the centroids of two nearest neighbor second hard phases is at least 4 μm and not more than 15 μm and the coefficient of variation of the distance between the centroids is at least 1.20 and not more than 1.90. The binder phase contains at least 50 mass% cobalt, and the cemented carbide contains at least 8.0 vol% and not more than 14.0 vol% of the binder phase.
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
C22C 1/051 - Making hard metals based on borides, carbides, nitrides, oxides or silicidesPreparation of the powder mixture used as the starting material therefor
Provided is cemented carbide comprising a first hard phase, a plurality of second hard phases, and a binder phase, wherein: the first hard phase comprises a plurality of tungsten carbide particles; the particle diameter D10 of the tungsten carbide particles is 0.40 μm or greater; the particle diameter D90 of the tungsten carbide particles is 2.00 μm or less; the second hard phase comprises at least one type of a first compound selected from the group consisting of TaNbC, TaNbN, TaNbCN, TiCN, TiNbC, TiNbN, and TiNbCN; the cemented carbide contains 0.30-1.60 vol% of the second hard phases; the average circularity of the second hard phases in the cross-section of the cemented carbide is 0.10-0.32; the standard deviation of the circularity is 0.094-0.130; the binder phase contains 50 mass% or greater of cobalt; and the cemented carbide contains 8.0-12.0 vol% of the binder phase.
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
C22C 1/051 - Making hard metals based on borides, carbides, nitrides, oxides or silicidesPreparation of the powder mixture used as the starting material therefor
This cemented carbide comprises a first hard phase, a plurality of second hard phases, and a binding phase, wherein the first hard phase comprises a plurality of tungsten carbide particles, the D10 particle diameter of the tungsten carbide particles is 0.40 μm or more, the D90 particle diameter of the tungsten carbide particles is 2.00 μm or less, and the second hard phase is composed of at least one first compound selected from the group consisting of TaNbC, TaNbN, TaNbCN, TiCN, TiNbC, TiNbN, and TiNbCN. The cemented carbide contains 0.30 volume% to 1.60 volume% of the second hard phase, the median area of the second hard phase in a cross section of the cemented carbide is 0.90 μm2to 1.20 μm2, the coefficient of variation of the area of the second hard phase is 0.50 to 1.20, the binding phase contains 50 mass% or more of cobalt, and the cemented carbide contains 8.0 volume% to 12.0 volume% of the binding phase.
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
C22C 1/051 - Making hard metals based on borides, carbides, nitrides, oxides or silicidesPreparation of the powder mixture used as the starting material therefor
A cemented carbide consists of a first hard phase, second hard phases, and a binder phase, wherein the first hard phase is composed of tungsten carbide grains, a D10 and a D90 of grain sizes of the tungsten carbide grains are 0.40 μm or more and 2.00 μm or less respectively, the second hard phases are composed of at least one first compound selected from the group consisting of TaNbC, TaNbN, TaNbCN, TiCN, TiNbC, TiNbN, and TiNbCN, the cemented carbide includes 0.30% to 1.60% by volume of the second hard phases, an average of circularities of the second hard phases is 0.10 to 0.32, a standard deviation of the circularity is 0.094 to 0.130, the binder phase includes 50% by mass or more of cobalt, and the cemented carbide includes 8.0% to 12.0% by volume of the binder phase.
Provided is a large-diameter rotary cutting tool capable of supplying a coolant from the inside of a body part. A rotary cutting tool (100) is capable of rotating around a rotary shaft, and has a body part (1) and a cover (2) attached to the body part. The body part is provided with: a fitting part (16) into which a coolant is introduced and which is attached to a holder; a coolant reservoir groove (15) that is positioned farther to the outside in the radial direction than the fitting part; a first attachment hole (11) into which a bolt (41) for fixing the body part to the holder is inserted; and a coolant hole (14) that is continuous with the coolant reservoir groove and discharges the coolant.
This tool information presentation system presents information about a tool for milling to a user. The tool information presentation system is provided with a tool information presentation device and a display device, wherein: the tool information presentation device transmits, to the display device, interference state information for a specific tool, the interference state information indicating the interference state between the tool and a workpiece in one rotation of the tool with respect to the cutting depths in the rotational radius direction and in the rotational axis direction of the tool; and the display device receives the interference state information transmitted from the tool information presentation device, and displays the received interference state information.
A cemented carbide consisting of a first hard phase, second hard phases, and a binder phase, wherein the first hard phase is composed of tungsten carbide grains, a D10 and a D90 of grain sizes of the tungsten carbide grains are 0.40 μm and 2.00 μm respectively, the second hard phases are composed of at least one first compound selected from the group consisting of TaNbC, TaNbN, TaNbCN, TiCN, TiNbC, TiNbN, and TiNbCN, the cemented carbide includes 0.30% to 1.60% by volume of the second hard phases, a median of a distance between centroids of two of the second hard phases that are closest is 4 to 15 μm, a coefficient of variation of the distance between centroids is 1.20 to 1.90, the binder phase includes 50% by mass or more of cobalt, and the cemented carbide includes 8.0 to 14.0% by volume of the binder phase.
A cutting insert has a top surface, a bottom surface, and an outer peripheral surface. A ridgeline between the top surface and the outer peripheral surface includes a first cutting edge. A protrusion is provided on the top surface. In a first cross section, a distance between the first cutting edge and the protrusion in a direction perpendicular to the bottom surface is defined as a first distance. In a second cross section, a distance between the first cutting edge and the protrusion in a direction perpendicular to the bottom surface is defined as a third distance. The third distance is longer than the first distance. A ratio of a height of the protrusion to a width of the protrusion in the second cross section is smaller than a ratio of a height of the protrusion to a width of the protrusion in the first cross section.
2, a coefficient of variation of the areas of the second hard phases is 0.50 to 1.20, the binder phase includes 50% by mass or more of cobalt, and the cemented carbide includes 8.0 to 12.0% by volume of the binder phase.
A cutting tool according to the present invention comprises a base material and a diamond layer that covers the base material. The cutting tool has a rake surface and a flank surface. The flank surface is continuous with the rake surface. The ridgeline between the rake surface and the flank surface forms a cutting edge. The diamond layer has a flank surface–covering part. The flank surface–covering part forms the flank surface. The thickness of the flank surface–covering part is 10–25 μm. In a cross-section that is orthogonal to a tangent to the cutting edge, the radius of curvature of the cutting edge is less than the value obtained by multiplying the thickness of the flank surface–covering part by 0.3. The rake surface includes a first portion. The first portion is formed from the flank surface–covering part. The first portion is continuous with the flank surface. The maximum height roughness of the first portion is less than 2 μm.
cBN sintered material, including cBN particles; a binder phase; and a first phase,
wherein the content of the cBN particles in the cBN sintered material is 25% to 80% by volume,
the binder phase contains either or both of
one or more first compounds, and
a solid solution derived from the first compound,
the first phase contains cobalt, tungsten, and at least one first element selected from the group consisting of the elements contained in the binder phase,
the total content of cobalt and tungsten in the cBN sintered material is 1.0% to 6.0% by mass,
the binder phase consists of multiple binder phase particles containing 50% or more of first binder phase particles on a number basis,
surfaces of the first binder phase particles include 50% by area or more of a first region which is in contact with the first phase.
A first flank face includes a first front flank face portion and a first rear flank face portion. A second flank face includes a second front flank face portion and a second rear flank face portion. A ridgeline between the first front flank face portion and the first rear flank face portion is defined as a first ridgeline. A ridgeline between the second front flank face portion and the second rear flank face portion is defined as a second ridgeline. When viewed in the axial direction, a distance between the first ridgeline and the second ridgeline in a direction perpendicular to the first ridgeline is greater than 0 mm and less than or equal to 0.03 mm.
A mold for an ultra-high pressure generating device being composed of a cemented carbide, wherein the cemented carbide comprises a first phase being composed of a plurality of tungsten carbide grains and a second phase containing cobalt, wherein the Vickers hardness of the cemented carbide is 2000 Hv or more, wherein the bending strength of the cemented carbide is 2.3 GPa or more, wherein the mold for an ultra-high pressure generating device has a truncation surface, and wherein the compressive residual stress of the truncation surface is 1.50 GPa or more.
The present invention provides a processing system comprising a cutting tool, a sensor, and a processing unit, wherein the sensor measures a physical quantity that indicates a state related to a load on the cutting tool at the time of cutting machining and the processing unit creates, on the basis of a measurement result of the sensor at a plurality of measurement times, a graph containing a plurality of plots indicating data relating to the load at each of the measurement times and detects a state of the cutting machining through use of the cutting tool on the basis of an area occupied by the plurality of plots on the created graph.
B23Q 17/09 - Arrangements for indicating or measuring on machine tools for indicating or measuring cutting pressure or cutting-tool condition, e.g. cutting ability, load on tool
B23Q 17/00 - Arrangements for indicating or measuring on machine tools
G05B 19/406 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by monitoring or safety
The present invention is such that, when viewed along the central axis thereof, the start point phase of a first discharge groove is located in a range of +10° to +90° with respect to a center cutting edge, the end point phase of the first discharge groove is located in a range of -40° to 0° with respect to the center cutting edge, the start point phase of a second discharge groove is located in a range of +10° to +90° with respect to an outer peripheral blade, and the end point phase of the second discharge groove is located in a range of -40° to 0° with respect to the outer peripheral blade. The first discharge groove has a first front groove section and a first rear groove section connected to the first front groove section. The second discharge groove has a second front groove section and a second rear groove section connected to the second front groove section. The torsion angle of the first front groove section monotonically decreases when approaching the first rear groove section. The torsion angle of the second front groove section monotonically decreases when approaching the second rear groove section. The torsion angle of each of the first rear groove section and the second rear groove section is 0°.
This cutting tool is provided with a base material, and a coating film that is disposed on the base material, wherein the coating film includes a first layer that is positioned on the base material, a second layer that is positioned on the first layer, and a third layer that is positioned on the second layer, the first layer is composed of titanium carbonitride, the second layer is composed of aluminum oxide, the third layer is composed of titanium carbonitride, the residual stress X of the first layer and the residual stress Y of the second layer satisfy the relationship set forth in formula 1, and the residual stress Y of the second layer and the residual stress Z of the third layer satisfy the relationship set forth in formula 2.
A cutting tool including a substrate and a coated film arranged on the substrate, in which the coated film includes a first layer positioned on the substrate, a second layer positioned on the first layer, and a third layer positioned on the second layer, the first layer is composed of titanium carbonitride, the second layer is composed of aluminum oxide, the third layer is composed of titanium carbonitride, a residual stress X of the first layer and a residual stress Y of the second layer satisfy a relationship of formula 1, and the residual stress Y of the second layer and a residual stress Z of the third layer satisfy a relationship of formula 2.
B23B 27/14 - Cutting tools of which the bits or tips are of special material
C23C 28/04 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and only coatings of inorganic non-metallic material
A cutting tool including a substrate and a coated film arranged on the substrate, in which the coated film includes a first layer positioned on the substrate, a second layer positioned on the first layer, and a third layer positioned on the second layer, the first layer is composed of titanium carbonitride, the second layer is composed of aluminum oxide, the third layer is composed of titanium carbonitride, a residual stress X of the first layer, a residual stress Y of the second layer and a residual stress Z of the third layer satisfy a relationship of formula 1.
This cutting tool is provided with a base material, and a coating film that is disposed on the base material, wherein the coating film includes a first layer that is positioned on the base material, a second layer that is positioned on the first layer, and a third layer that is positioned on the second layer, the first layer is composed of titanium carbonitride, the second layer is composed of aluminum oxide, the third layer is composed of titanium carbonitride, and the residual stress X of the first layer, the residual stress Y of the second layer, and the residual stress Z of the third layer satisfy the relationship set forth in formula 1.
A cutting tool provided with a base material, and a coating film that is disposed on the base material, wherein the coating film includes a first layer that is positioned on the base material and a second layer that is positioned on the first layer, the first layer is composed of titanium carbonitride, the second layer is composed of aluminum oxide, and the residual stress X of the first layer and the residual stress Y of the second layer satisfy the relationship set forth in formula 1.
This cemented carbide includes a first phase, a second phase, and a third phase. The first phase is composed of a plurality of tungsten carbide particles, and the content of the first phase of the cemented carbide is 65 vol.% to 85 vol.% inclusive. The second phase is composed of cobalt, and the cobalt content C5 of the cemented carbide is 3 mass% to 15 mass% inclusive. The third phase is composed of at least one element selected from the group consisting of titanium, tantalum, niobium, zirconium and tungsten, and at least one of carbon and nitrogen. The third phase does not contain tungsten carbide, and the total content C of titanium, tantalum, niobium, and zirconium of the cemented carbide is 2 mass% to 8 mass% inclusive. The Vickers hardness a of the cemented carbide is 12.5 GPa to 14.5 GPa inclusive, the Vickers hardness a being measured in the cemented carbide at a point P1 where the distance from the surface of the cemented carbide along a direction normal to the surface is 5 μm. The cemented carbide includes a first region sandwiched between a virtual surface Q1 having a distance of 5 μm from the surface and a virtual surface Q4 having a distance of 200 μm from the surface, the first region having a second region sandwiched between a virtual surface Q2 having a distance of 10 μm from the surface and a virtual surface Q3 having a distance of 50 μm from the surface. In the first region, a point P2 indicating a Vickers hardness b, which is the maximum value of the Vickers hardness, is present in the second region. A difference b-a between the Vickers hardness b and the Vickers hardness a is more than or equal to 1.8 GPa.
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
B23B 27/14 - Cutting tools of which the bits or tips are of special material
C22C 1/051 - Making hard metals based on borides, carbides, nitrides, oxides or silicidesPreparation of the powder mixture used as the starting material therefor
A cemented carbide comprising a first phase, a second phase and a third phase, wherein: the first phase consists of a plurality of tungsten carbide particles; the second phase consists of cobalt; the cobalt content C5 in the cemented carbide is 3% to 15%; the third phase consists of at least one element selected from the group consisting of titanium, tantalum, niobium, zirconium and tungsten, and at least any of carbon and nitrogen; the Vickers hardness a of the cemented carbide is 12.5 GPa to 14.5 GPa; the cemented carbide includes a first region; the first region has a second region; in the first region, a point P2 indicating the Vickers hardness b, which is the maximum value of the Vickers hardness, exists in the second region; and the difference b-a between the Vickers hardness b and the Vickers hardness a is 1.8 GPa or more.
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
Provided is a super-hard alloy that includes a first phase, a second phase and a third phase. The first phase comprises a plurality of tungsten carbide particles. The content of the first phase in the super-hard alloy is 65-85 vol%. The arithmetic mean diameter a of the tungsten carbide particles is 0.5-2.0 μm. This arithmetic mean diameter a and the standard deviation b of the particle diameter of the tungsten carbide particles satisfy a relationship represented by formula I: b<0.49a+0.063. In formula I, units for a and b are μm. The arithmetic mean diameter a and the number-based 10% cumulative particle diameter c of the tungsten carbide particles satisfy a relationship represented by formula II: c>0.34a+0.098. In formula II, units for a and c are μm. The second phase comprises cobalt. The content of cobalt in the super-hard alloy is 3-15 mass%. The third phase comprises: at least one element selected from the group consisting of titanium, tantalum, niobium, zirconium and tungsten; and at least one of carbon and nitrogen. The third phase does not contain tungsten carbide. The total content of titanium, tantalum, niobium and zirconium in the super-hard alloy is 2-8 mass%.
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
B23B 27/14 - Cutting tools of which the bits or tips are of special material
C22C 1/051 - Making hard metals based on borides, carbides, nitrides, oxides or silicidesPreparation of the powder mixture used as the starting material therefor
This cutting insert comprises: a rake face (50); a flank (70); and a cutting edge (10) composed of a ridge (20) between the rake face and the flank. The cutting edge has a first cutting edge part (1) for corner machining, a second cutting edge part (2) for low-cut drawing machining, a third cutting edge part (3) for high-cut drawing machining, a fourth cutting edge part (4) for finishing surface machining, a first connection cutting edge part, a second connection cutting edge part, and a third connection cutting edge part. The fourth cutting edge part is disposed between the first cutting edge part and the second cutting edge part. The second cutting edge part is disposed between the fourth cutting edge part and the third cutting edge part. Each of the first cutting edge part, the second cutting edge part, and the fourth cutting edge part has a curved shape. The curvature radius of the first cutting edge part is 0.1-2.4 mm. The curvature radius of the second cutting edge part is 3 mm or more. The curvature radius of the fourth cutting edge part is 3 mm or more. The third cutting edge part has a linear shape.
A cemented carbide according to the present disclosure comprises a first hard phase, a second hard phase, and a binding phase. The first hard phase is formed from tungsten carbide particles, and has a 10% cumulative particle diameter D10 of 0.30-0.60 μm on an area basis. The first hard phase has a 90% cumulative particle diameter D90 of 0.90-1.40 μm on an area basis. The second hard phase contains at least one type of first compound selected from the group consisting of TiNbC, TiNbN, and TiNbCN. The content of the second hard phase in the cemented carbide is 0.10-0.50 vol%. The average particle diameter of the second hard phase is 0.03-0.50 μm. The binding phase contains 80 mass% of cobalt or more. The content of the binding phase in the cemented carbide is 8.0-16.0 vol%. The average particle diameter of the binding phase is 0.15-0.45 μm. The binding phase has a 95% cumulative particle diameter D95 of 1.5 μm or less on an area basis. The dispersity of the binding phase is 0.15-0.25.
C22C 1/051 - Making hard metals based on borides, carbides, nitrides, oxides or silicidesPreparation of the powder mixture used as the starting material therefor
B23B 27/14 - Cutting tools of which the bits or tips are of special material
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
72.
COMPOSITE POLYCRYSTAL AND TOOL WITH COMPOSITE POLYCRYSTAL
A polycrystalline composite comprising diamond particles and non-diamond carbon, wherein: the sum of the content Vd of the diamond particles and the content Vg of the non-diamond carbon is more than 99% by volume based on the total volume of the polycrystalline composite; the median diameter d50 of the diamond particles is 10 nm or more and 200 nm or less; the dislocation density of the diamond particles is 1.0×1013 m−2 or more and 1.0×1016 m−2 or less; and the content Vd of the diamond particles and the content Vg of the non-diamond carbon satisfy the relationship represented by the formula 1:0.01
C04B 35/528 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components
C04B 35/52 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbon, e.g. graphite
a1-a-bbc1-c1-cN, where 0.70≤c≤1.00. In the first layer, the percentage of the number of titanium atoms T2 with respect to the total number of titanium and aluminum atoms T1, (T2/T1)×100, is at least 60%.
Disclosed is a cubic boron nitride sintered compact which comprises cubic boron nitride particles, a binder phase, and a first phase. The content of the cubic boron nitride particles in the cubic boron nitride sintered compact is 25% by volume to 80% by volume inclusive. The binder phase contains one or both of at least one first compound which is composed of at least one element that is selected from the group consisting of titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, aluminum, and silicon, and at least one element that is selected from the group consisting of nitrogen, carbon, boron, and oxygen, and a solid solution that is derived from the first compound. The first phase contains cobalt, tungsten, and at least one first element that is selected from the group consisting of the elements contained in the binder phase. The total content of cobalt and tungsten in the cubic boron nitride sintered compact is 1.0% by mass to 6.0% by mass inclusive. The binder phase is composed of a plurality of binder phase particles. The plurality of binder phase particles include 50% or more of first binder phase particles on the number basis. The surfaces of the first binder phase particles each comprise 50% by area or more of a first region, and the first region is in contact with the first phase.
C04B 35/5831 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on borides, nitrides or silicides based on boron nitride based on cubic boron nitride
B23B 27/14 - Cutting tools of which the bits or tips are of special material
B23B 27/20 - Cutting tools of which the bits or tips are of special material with diamond bits
C22C 1/051 - Making hard metals based on borides, carbides, nitrides, oxides or silicidesPreparation of the powder mixture used as the starting material therefor
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
a1-a-bbc1-cd1-d-eef1-f-gggN, where 0.25 ≤ d < 0.45, 0 < e ≤ 0.10, 0.35 ≤ f < 0.55, 0 < g ≤ 0.10, and 0.05 ≤ f-d ≤ 0.20 are satisfied, and in the X-ray diffraction spectrum of the second layer, the ratio I(200)/I(002) of the peak intensity I(200) derived from the (200) plane to the peak intensity I(002) derived from the (002) plane is 2 or more, and the half-value width of the peak derived from the (002) plane is 2 degrees or more.
The cemented carbide of the present disclosure is a cemented carbide comprising a first phase composed of a tungsten carbide particle and a second phase comprising cobalt as a main component, wherein a total content of the first phase and the second phase in the cemented carbide is 97% by volume or more, an average value of an equivalent circle diameter of the tungsten carbide particle is 0.8 μm or less, a cobalt content of the cemented carbide is 3% by mass or more and 10% by mass or less, a vanadium content of the cemented carbide is 0.01% by mass or more and 0.30% by mass or less, and a maximum value of the vanadium content in an interface region between a (0001) crystal plane of the tungsten carbide particle and the second phase is 15 atomic % or less.
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
B22F 3/16 - Both compacting and sintering in successive or repeated steps
B22F 3/24 - After-treatment of workpieces or articles
B22F 9/02 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes
B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
C22C 1/051 - Making hard metals based on borides, carbides, nitrides, oxides or silicidesPreparation of the powder mixture used as the starting material therefor
C22C 29/06 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
A cemented carbide is composed of a first hard phase, a second hard phase, and a binder phase, wherein the first hard phase is composed of tungsten carbide particles and having a particle diameter D10 of 0.30 μm to 0.60 μm, a particle diameter D90 of 0.90 μm to 1.40 μm, the second hard phase contains at least one first compound selected from the group consisting of TiNbC, TiNbN, and TiNbCN, and having an average particle diameter of 0.03 μm to 0.50 μm, a content of the binder phase in the cemented carbide is 8.0 vol % to 16.0 vol %, an average particle diameter of the binder phase is 0.15 μm to 0.45, a particle diameter D95 of the binder phase is 1.5 μm or less, and a degree of dispersion of the binder phase is 0.15 to 0.25.
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
C22C 29/02 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides
C22C 29/06 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
A cemented carbide is a cemented carbide, composed of: hard phases comprising tungsten carbide as a main ingredient and binder phases comprising cobalt as a main ingredient, wherein the hard phases have a ratio D10/D90 of D10 being an area-based 10% cumulative particle size to D90 being an area-based 90% cumulative particle size of 0.30 or more, the binder phases have a ratio D10/D90 of D10 being an area-based 10% cumulative particle size to D90 being an area-based 90% cumulative particle size of 0.23 or more, wherein the binder phases have an average particle size of 0.25 μm or more and 0.50 μm or less, and wherein the hard phases have an average particle size of 0.30 μm or more and 0.60 μm or less.
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
B22F 3/16 - Both compacting and sintering in successive or repeated steps
B22F 3/24 - After-treatment of workpieces or articles
B22F 9/02 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes
B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
C22C 1/051 - Making hard metals based on borides, carbides, nitrides, oxides or silicidesPreparation of the powder mixture used as the starting material therefor
C22C 29/06 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
A drill includes a flank face, a rake face, and a main cutting edge on a ridgeline between the rake face and the flank face. The main cutting edge has a first curved portion having a curved shape contiguous with the flank face and a second curved portion having a curved shape contiguous with the rake face in a sectional view orthogonal to an extending direction of the main cutting edge. A first curvature radius of the first curved portion is larger than a second curvature radius of the second curved portion.
B23B 35/00 - Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machinesUse of auxiliary equipment in connection with such methods
A cutting tool includes a main body. The main body includes a distal end surface, a rear end surface, and a side surface. A spiral first groove and a spiral second groove are formed on the side surface of the main body. The first groove has at least four installation surfaces. The first installation surface is located on a most rear end surface side. The second installation surface is located closer to a distal end surface side with respect to the first installation surface. A length from the first installation surface to the second groove in a circumferential direction along the rotation direction of the main body is set to a first length. A length from the second installation surface to the second groove in the circumferential direction is set to a second length. The first length is longer than the second length.
This machining condition determination assistance system that assists determination of a machining condition in a machine tool for machining a workpiece using a tool comprises: a determination unit that determines a contact position between the tool and the workpiece when the tool has moved along a movement path of the tool, on the basis of target shape information indicating the shape of the workpiece, path information indicating the movement path, and tool shape information indicating the shape of the tool; and a first generation unit that generates contact position information indicating a temporal shift of the contact position when the tool has moved along the movement path.
G05B 19/4093 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine
B23B 27/14 - Cutting tools of which the bits or tips are of special material
C23C 14/06 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
C23C 14/32 - Vacuum evaporation by explosionVacuum evaporation by evaporation and subsequent ionisation of the vapours
C23C 28/00 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and
C23C 28/04 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and only coatings of inorganic non-metallic material
85.
DIAMOND POLYCRYSTAL BODY, AND TOOL PROVIDED WITH DIAMOND POLYCRYSTAL BODY
A polycrystalline diamond comprising diamond particles, wherein: the content of the diamond particles is more than 99% by volume based on the total volume of the polycrystalline diamond: the median diameter d50 of the diamond particles is 10 nm or more and 200 nm or less; and the dislocation density of the diamond particles is 0.1×1015 m−2 or more and less than 2.0×1015 m−2.
A drill has a helical flute surface, a flank face, and a thinning face. A ridgeline between the thinning face and the flank face constitutes a thinning cutting edge. The thinning cutting edge has a curved thinning cutting edge portion and a straight thinning cutting edge portion. The curved thinning cutting edge portion protrudes forward in the rotation direction. The straight thinning cutting edge portion is contiguous to the curved thinning cutting edge portion. The curved thinning cutting edge portion has a first end portion and a second end portion. The first end portion is a boundary between the curved thinning cutting edge portion and the straight thinning cutting edge portion.
A cutting tool according to one aspect of the present disclosure comprises a shaft part and two or more main cutting blade parts. The shaft part extends along a central axis. The shaft part has an outer peripheral surface. The outer peripheral surface surrounds the central axis. The two or more main cutting blade parts are disposed in a spiral manner on the outer peripheral surface. The main cutting blade parts each have a main cutting blade. The main cutting blade has a helix angle. In a portion that is within ±30% of the blade length of a region from the center of that region in a direction along the central axis, the main cutting blade parts have at least one first nick part and a second nick part. The main cutting blade parts are formed in a region. The first nick part and the second nick part have a helix angle in the reverse direction from the helix angle. A relationship between the first nick part and the second nick part satisfies a first condition and/or a second condition. The first condition is that the width of the first nick part differs from the width of the second nick part. The second condition is that the depth of the first nick part differs from the depth of the second nick part.
A cutting tool according to one aspect of the present disclosure includes a shaft portion and cutting edge portions. The main cutting edge portions have a main cutting edge. In a section within ±30% of a blade length of a region from a center of the region in a direction along the central axis, the main cutting edge portions have first and second nick portions. The main cutting edge portions are formed in the region. The relationship between the first nick portion and the second nick portion satisfies at least one of a first condition and a second condition. The first condition is that a width of the first nick portion is different from a width of the second nick portion. The second condition is that a depth of the first nick portion is different from a depth of the second nick portion.
A cemented carbide consists of: a first phase consisting of a plurality of tungsten carbide grains; and a second phase including cobalt, an average value of equivalent circle diameters of the tungsten carbide grains is 0.5 μm to 1.2 μm, on number basis, the tungsten carbide grains include less than or equal to 13% of first tungsten carbide grains each having an equivalent circle diameter of less than or equal to 0.3 μm, on number basis, the tungsten carbide grains include less than or equal to 12% of second tungsten carbide grains each having an equivalent circle diameter of more than 1.3 μm, in a histogram indicating a distribution of the equivalent circle diameters of the tungsten carbide grains. Fmax/Fmin is less than or equal to 7.0, Fmax/Fmin being a ratio of a maximum frequency Fmax to a minimum frequency Fmin.
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
B23B 27/14 - Cutting tools of which the bits or tips are of special material
C22C 1/051 - Making hard metals based on borides, carbides, nitrides, oxides or silicidesPreparation of the powder mixture used as the starting material therefor
H05K 3/00 - Apparatus or processes for manufacturing printed circuits
In the present invention, a first flank face includes a first front flank face part and a first rear flank face part. A second flank face includes a second front flank face part and a second rear flank face part. A ridgeline between the first front flank face part and the first rear flank face part forms a first ridgeline. A ridgeline between the second front flank face part and the second rear flank face part forms a second ridgeline. When viewed in an axial direction, the distance between the first ridgeline and the second ridgeline in a direction perpendicular to the first ridgeline is greater than 0 mm and is equal to or less than 0.03 mm. A ridgeline between a first thinning face and the first flank face and a ridgeline between the first thinning face and the second flank face constitute a first thinning ridgeline. A ridgeline between a second thinning face and the first flank face and a ridgeline between the second thinning face and the second flank face constitute a second thinning ridgeline. When viewed in the axial direction, the shortest distance between the first thinning ridgeline and the second thinning ridgeline in the direction perpendicular to the first ridgeline is 0.04 mm to 0.10 mm.
A cutting insert includes a first surface, a second surface, and an outer peripheral side surface. A ridgeline between the first surface and the outer peripheral side surface forms a first ridgeline. A ridgeline between the second surface and the outer peripheral side surface forms a second ridgeline. The first ridgeline includes a first straight portion, a first wiper edge, a first corner cutting edge, and a second straight portion. The second ridgeline includes a third straight portion, a second wiper edge, a second corner cutting edge, and a fourth straight portion. The outer peripheral side surface includes a first wiper flank surface, a first corner flank surface, a second wiper flank surface, a second corner flank surface, a first plane, and a second plane. The first plane is contiguous to each of the first corner flank surface and the second wiper flank surface.
A cutting tool includes a substrate and a coating provided on the substrate, the coating including: a first alumina layer provided on the substrate, a titanium compound layer provided directly on the first alumina layer, and a second alumina layer provided directly on the titanium compound layer; in which a portion adjacent to the titanium compound layer in the first alumina layer serves as an interface region, a portion that is not the interface region in the first alumina layer serves as a non-interface region, a content of nitrogen in the interface region is 0.2 at % or more and 10.5 at % or less, and a content of nitrogen in the non-interface region is 0 at % or more and 0.15 at % or less; and the titanium compound layer comprises a layer of titanium carbonitride adjacent to the first alumina layer.
A cemented carbide including a first phase being composed of a plurality of tungsten carbide grains and a second phase containing cobalt, wherein the cemented carbide contains chromium and vanadium, a mass-based percentage of the chromium to the cobalt is 5% or more and 9% or less, a mass-based percentage of the vanadium to the cobalt is 2% or more and 5% or less, an area ratio of the second phase is 7.5 area % or more and 13.5 area % or less, and a number of the second phases is 1000 or more, wherein the area ratio of the second phase and the number of the second phases are measured in a measurement field of 101 μm2 by performing image processing on a scanning electron microscope image of a cross section of the cemented carbide.
C22C 29/00 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
A cutting tool comprises a substrate and a coating provided on the substrate, the coating including: a first alumina layer, a titanium compound layer, and a second alumina layer; in which a portion adjacent to the titanium compound layer in the first alumina layer serves as an interface region, a portion that is not the interface region in the first alumina layer serves as a non-interface region, a content of nitrogen in the interface region is 0.2 at % to 12 at %, and a content of nitrogen in the non-interface region is 0 at % to 0.15 at %; and the titanium compound layer includes a multilayer structure layer adjacent to the first alumina layer, the multilayer structure layer is composed of a first unit layer and a second unit layer, the first unit layer is made of titanium carbonitride, and the second unit layer is made of titanium carbonitroxide.
A cutting tool comprises a substrate and a coating provided on the substrate, the coating including a first alumina layer provided on the substrate, a titanium compound layer provided directly on the first alumina layer, and a second alumina layer provided directly on the titanium compound layer, in which a portion adjacent to the titanium compound layer in the first alumina layer serves as an interface region, a portion that is not the interface region in the first alumina layer serves as a non-interface region, a content of nitrogen in the interface region is 0.2 at % or more and 11 at % or less, and a content of nitrogen in the non-interface region is 0 at % or more and 0.15 at % or less; and the titanium compound layer comprises a layer of titanium carbonitroxide adjacent to the first alumina layer.
C23C 28/04 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and only coatings of inorganic non-metallic material
patents
