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 - Agencements sur les machines-outils pour indiquer ou mesurer pour indiquer ou mesurer la pression de coupe ou l'état de l'outil de coupe, p. ex. aptitude à la coupe, charge sur l'outil
B23Q 17/00 - Agencements sur les machines-outils pour indiquer ou mesurer
G05B 19/406 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique caractérisée par le contrôle ou la sécurité
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.
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 - Alliages à base de carbures, oxydes, borures, nitrures ou siliciures, p. ex. cermets, ou d'autres composés métalliques, p. ex. oxynitrures, sulfures à base de carbures ou de carbonitrures à base de carbures mais ne contenant pas d'autres composés métalliques à base de carbure de tungstène
B23B 27/14 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier
C22C 1/051 - Fabrication de métaux durs à base de borures, de carbures, de nitrures, d'oxydes ou de siliciuresPréparation du mélange de poudres utilisé comme matière première à cet effet
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 - Alliages à base de carbures, oxydes, borures, nitrures ou siliciures, p. ex. cermets, ou d'autres composés métalliques, p. ex. oxynitrures, sulfures à base de carbures ou de carbonitrures à base de carbures mais ne contenant pas d'autres composés métalliques à base de carbure de tungstène
C22C 29/00 - Alliages à base de carbures, oxydes, borures, nitrures ou siliciures, p. ex. cermets, ou d'autres composés métalliques, p. ex. oxynitrures, sulfures
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 - Alliages à base de carbures, oxydes, borures, nitrures ou siliciures, p. ex. cermets, ou d'autres composés métalliques, p. ex. oxynitrures, sulfures à base de carbures ou de carbonitrures à base de carbures mais ne contenant pas d'autres composés métalliques à base de carbure de tungstène
B23B 27/14 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier
C22C 1/051 - Fabrication de métaux durs à base de borures, de carbures, de nitrures, d'oxydes ou de siliciuresPréparation du mélange de poudres utilisé comme matière première à cet effet
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 - Fabrication de métaux durs à base de borures, de carbures, de nitrures, d'oxydes ou de siliciuresPréparation du mélange de poudres utilisé comme matière première à cet effet
B23B 27/14 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier
C22C 29/08 - Alliages à base de carbures, oxydes, borures, nitrures ou siliciures, p. ex. cermets, ou d'autres composés métalliques, p. ex. oxynitrures, sulfures à base de carbures ou de carbonitrures à base de carbures mais ne contenant pas d'autres composés métalliques à base de carbure de tungstène
24.
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 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de non oxydes à base de carbone, p. ex. graphite obtenus à partir de particules carbonées avec ou sans autres composants non organiques
C04B 35/52 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de non oxydes à base de carbone, p. ex. 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%.
B23B 27/14 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier
C23C 14/06 - Revêtement par évaporation sous vide, pulvérisation cathodique ou implantation d'ions du matériau composant le revêtement caractérisé par le matériau de revêtement
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 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de non oxydes à base de borures, nitrures ou siliciures à base de nitrure de bore à base de nitrure de bore cubique
B23B 27/14 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier
B23B 27/20 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier à éléments tranchants constitués par des diamants
C22C 1/051 - Fabrication de métaux durs à base de borures, de carbures, de nitrures, d'oxydes ou de siliciuresPréparation du mélange de poudres utilisé comme matière première à cet effet
C22C 29/08 - Alliages à base de carbures, oxydes, borures, nitrures ou siliciures, p. ex. cermets, ou d'autres composés métalliques, p. ex. oxynitrures, sulfures à base de carbures ou de carbonitrures à base de carbures mais ne contenant pas d'autres composés métalliques à base de carbure de tungstène
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 - Alliages à base de carbures, oxydes, borures, nitrures ou siliciures, p. ex. cermets, ou d'autres composés métalliques, p. ex. oxynitrures, sulfures à base de carbures ou de carbonitrures à base de carbures mais ne contenant pas d'autres composés métalliques à base de carbure de tungstène
B22F 3/16 - Compactage et frittage par des opérations successives ou répétées
B22F 3/24 - Traitement ultérieur des pièces ou objets
B22F 9/02 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques
B22F 9/04 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau solide, p. ex. par broyage, meulage ou écrasement à la meule
C22C 1/051 - Fabrication de métaux durs à base de borures, de carbures, de nitrures, d'oxydes ou de siliciuresPréparation du mélange de poudres utilisé comme matière première à cet effet
C22C 29/06 - Alliages à base de carbures, oxydes, borures, nitrures ou siliciures, p. ex. cermets, ou d'autres composés métalliques, p. ex. oxynitrures, sulfures à base de carbures ou de carbonitrures à base de carbures mais ne contenant pas d'autres composés métalliques
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 - Alliages à base de carbures, oxydes, borures, nitrures ou siliciures, p. ex. cermets, ou d'autres composés métalliques, p. ex. oxynitrures, sulfures à base de carbures ou de carbonitrures à base de carbures mais ne contenant pas d'autres composés métalliques à base de carbure de tungstène
C22C 29/02 - Alliages à base de carbures, oxydes, borures, nitrures ou siliciures, p. ex. cermets, ou d'autres composés métalliques, p. ex. oxynitrures, sulfures à base de carbures ou de carbonitrures
C22C 29/06 - Alliages à base de carbures, oxydes, borures, nitrures ou siliciures, p. ex. cermets, ou d'autres composés métalliques, p. ex. oxynitrures, sulfures à base de carbures ou de carbonitrures à base de carbures mais ne contenant pas d'autres composés métalliques
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 - Alliages à base de carbures, oxydes, borures, nitrures ou siliciures, p. ex. cermets, ou d'autres composés métalliques, p. ex. oxynitrures, sulfures à base de carbures ou de carbonitrures à base de carbures mais ne contenant pas d'autres composés métalliques à base de carbure de tungstène
B22F 3/16 - Compactage et frittage par des opérations successives ou répétées
B22F 3/24 - Traitement ultérieur des pièces ou objets
B22F 9/02 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques
B22F 9/04 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau solide, p. ex. par broyage, meulage ou écrasement à la meule
C22C 1/051 - Fabrication de métaux durs à base de borures, de carbures, de nitrures, d'oxydes ou de siliciuresPréparation du mélange de poudres utilisé comme matière première à cet effet
C22C 29/06 - Alliages à base de carbures, oxydes, borures, nitrures ou siliciures, p. ex. cermets, ou d'autres composés métalliques, p. ex. oxynitrures, sulfures à base de carbures ou de carbonitrures à base de carbures mais ne contenant pas d'autres composés métalliques
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 - Méthodes d'alésage ou de perçage ou autres méthodes de travail impliquant l'utilisation de machines à aléser ou à percerUtilisation d'équipements auxiliaires en relation avec ces méthodes
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 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique caractérisée par la programmation de pièce, p. ex. introduction d'une information géométrique dérivée d'un dessin technique, combinaison de cette information avec l'information d'usinage et de matériau pour obtenir une information de commande, appelée programme de pièce, pour la machine à commande numérique [CN]
B23B 27/14 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier
C23C 14/06 - Revêtement par évaporation sous vide, pulvérisation cathodique ou implantation d'ions du matériau composant le revêtement caractérisé par le matériau de revêtement
C23C 14/32 - Évaporation sous vide par explosionÉvaporation sous vide par évaporation suivie d'une ionisation des vapeurs
C23C 28/00 - Revêtement pour obtenir au moins deux couches superposées, soit par des procédés non prévus dans un seul des groupes principaux , soit par des combinaisons de procédés prévus dans les sous-classes et
C23C 28/04 - Revêtements uniquement de matériaux inorganiques non métalliques
37.
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 cutting tool comprises a substrate and a coating film disposed on the substrate, wherein the coating film comprises a first layer and a second layer; the first layer has a hardness H1 of 25 GPa or more and 40 GPa or less; the second layer has a hardness H2 satisfying 0.5×H1≤H2≤0.9×H1; and at least one of a ratio I(200)/(I(200)+I(111)+I(220)) of I(200) of (200) plane to a sum of X-ray diffraction intensity I(200) of (200) plane, X-ray diffraction intensity I(111) of (111) plane, and X-ray diffraction intensity I(220) of (220) plane of the coating film, a ratio I(111)/(I(200)+I(111)+I(220)) of I(111) to the sum, and a ratio I(220/(I(200)+I(111)+I(220)) of I(220) to the sum is 0.45 or more.
B23B 27/14 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier
C23C 14/06 - Revêtement par évaporation sous vide, pulvérisation cathodique ou implantation d'ions du matériau composant le revêtement caractérisé par le matériau de revêtement
C23C 14/30 - Évaporation sous vide par énergie éléctromagnétique ou par rayonnement corpusculaire par bombardement d'électrons
C23C 14/32 - Évaporation sous vide par explosionÉvaporation sous vide par évaporation suivie d'une ionisation des vapeurs
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 - Alliages à base de carbures, oxydes, borures, nitrures ou siliciures, p. ex. cermets, ou d'autres composés métalliques, p. ex. oxynitrures, sulfures à base de carbures ou de carbonitrures à base de carbures mais ne contenant pas d'autres composés métalliques à base de carbure de tungstène
B23B 27/14 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier
C22C 1/051 - Fabrication de métaux durs à base de borures, de carbures, de nitrures, d'oxydes ou de siliciuresPréparation du mélange de poudres utilisé comme matière première à cet effet
H05K 3/00 - Appareils ou procédés pour la fabrication de circuits imprimés
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.
B23B 27/16 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier à éléments tranchants interchangeables, p. ex. pouvant être fixés par des brides
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 - Alliages à base de carbures, oxydes, borures, nitrures ou siliciures, p. ex. cermets, ou d'autres composés métalliques, p. ex. oxynitrures, sulfures
C22C 29/08 - Alliages à base de carbures, oxydes, borures, nitrures ou siliciures, p. ex. cermets, ou d'autres composés métalliques, p. ex. oxynitrures, sulfures à base de carbures ou de carbonitrures à base de carbures mais ne contenant pas d'autres composés métalliques à base de carbure de tungstène
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.
A cutting tool is rotatable about a central axis and has a front end in an axial direction along the central axis. The cutting tool includes a body, a blade, a first attachment screw, an adjustment piece, and a second attachment screw. The body has an outer peripheral surface. A pocket is formed in the outer peripheral surface at an end portion on the front end side. The blade is attached to the body by screwing the first attachment screw into the body in the pocket. The blade has a blade side surface facing inward in a radial direction that is orthogonal to the axial direction and that passes through the central axis. An inner wall surface of the pocket has a contact surface facing the blade side surface with a space being interposed between the blade side surface and the contact surface in the radial direction.
B23B 27/16 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier à éléments tranchants interchangeables, p. ex. pouvant être fixés par des brides
54.
DIAMOND POLYCRYSTALLINE BODY, AND TOOL COMPRISING DIAMOND POLYCRYSTALLINE 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 2.0×1015 m−2 or more and 4.0×1016 m−2 or less.
A cutting tool comprising a base material and a coating disposed on the base material, wherein the coating comprises a first layer, the first layer consists of a MoC1-x layer formed from a compound represented by MoC1-x or a TaC1-y layer formed from a compound represented by TaC1-y, the compound represented by MoC1-x consists of a hexagonal crystal structure, the x is 0.40 or more and 0.60 or less, the compound represented by TaC1-y comprises 95% by mass or more of a hexagonal crystal structure, and the y is 0:40 or more and 0.60 or less.
B23B 27/14 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier
C23C 14/06 - Revêtement par évaporation sous vide, pulvérisation cathodique ou implantation d'ions du matériau composant le revêtement caractérisé par le matériau de revêtement
C23C 14/32 - Évaporation sous vide par explosionÉvaporation sous vide par évaporation suivie d'une ionisation des vapeurs
Provided is a cutting tool comprising a base material and a film arranged on the base material, in which the film includes a hard carbon film on the outermost surface thereof, the hard carbon film includes a first region, the first region is a region sandwiched between the surface of the hard carbon film and an imaginary plane P at a distance of 40 nm from the surface to the base material side, and the sp2 component amount C2 and the sp3 component amount C3 in the first region exhibit a relationship of the following formula 1:
Provided is a cutting tool comprising a base material and a film arranged on the base material, in which the film includes a hard carbon film on the outermost surface thereof, the hard carbon film includes a first region, the first region is a region sandwiched between the surface of the hard carbon film and an imaginary plane P at a distance of 40 nm from the surface to the base material side, and the sp2 component amount C2 and the sp3 component amount C3 in the first region exhibit a relationship of the following formula 1:
{C2/(C2+C3)}×100≤2.0 formula 1.
B23B 27/14 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier
C23C 14/06 - Revêtement par évaporation sous vide, pulvérisation cathodique ou implantation d'ions du matériau composant le revêtement caractérisé par le matériau de revêtement
C23C 14/32 - Évaporation sous vide par explosionÉvaporation sous vide par évaporation suivie d'une ionisation des vapeurs
A boring tool has a cutting insert, a holder, and a pressing member. The cutting insert includes a base member and a cutting member. The base member includes a first side surface, a second side surface, a third side surface, and a fourth side surface. The holder includes a front end surface, a rear end surface, and an outer peripheral surface. The holder is provided with a first hole and a second hole. The first hole is opened in the front end surface. The second hole is opened in the outer peripheral surface. The holder includes a stopper. A surface defining the second hole includes a first inner side surface and a second inner side surface. The pressing member is in contact with the fourth side surface in a state in which the pressing member is disposed in the first hole.
B23B 27/16 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier à éléments tranchants interchangeables, p. ex. pouvant être fixés par des brides
A cutting tool comprising a base material and a coating; wherein: the coating comprises a titanium compound layer and an a-Al2O3 layer; the a-Al2O3 layer comprises a region A1 and a region A2; the titanium compound layer comprises a region B1 and a region B2; an average particle diameter a1 of the a-Al2O3 particles in the region A1, an average particle diameter a2 of the a-Al2O3 particles in the region A2, an average particle diameter b1 of the titanium compound particles in the region B1, and an average particle diameter b2 of the titanium compound particles in the region B2 satisfy relationships represented by respective expressions 1 to 3:
A cutting tool comprising a base material and a coating; wherein: the coating comprises a titanium compound layer and an a-Al2O3 layer; the a-Al2O3 layer comprises a region A1 and a region A2; the titanium compound layer comprises a region B1 and a region B2; an average particle diameter a1 of the a-Al2O3 particles in the region A1, an average particle diameter a2 of the a-Al2O3 particles in the region A2, an average particle diameter b1 of the titanium compound particles in the region B1, and an average particle diameter b2 of the titanium compound particles in the region B2 satisfy relationships represented by respective expressions 1 to 3:
0.80≤a2/b2≤1.27 Expression 1
A cutting tool comprising a base material and a coating; wherein: the coating comprises a titanium compound layer and an a-Al2O3 layer; the a-Al2O3 layer comprises a region A1 and a region A2; the titanium compound layer comprises a region B1 and a region B2; an average particle diameter a1 of the a-Al2O3 particles in the region A1, an average particle diameter a2 of the a-Al2O3 particles in the region A2, an average particle diameter b1 of the titanium compound particles in the region B1, and an average particle diameter b2 of the titanium compound particles in the region B2 satisfy relationships represented by respective expressions 1 to 3:
0.80≤a2/b2≤1.27 Expression 1
1.50≤a1/a2≤10 Expression 2
A cutting tool comprising a base material and a coating; wherein: the coating comprises a titanium compound layer and an a-Al2O3 layer; the a-Al2O3 layer comprises a region A1 and a region A2; the titanium compound layer comprises a region B1 and a region B2; an average particle diameter a1 of the a-Al2O3 particles in the region A1, an average particle diameter a2 of the a-Al2O3 particles in the region A2, an average particle diameter b1 of the titanium compound particles in the region B1, and an average particle diameter b2 of the titanium compound particles in the region B2 satisfy relationships represented by respective expressions 1 to 3:
0.80≤a2/b2≤1.27 Expression 1
1.50≤a1/a2≤10 Expression 2
1.45≤b1/b2≤5 Expression 3
A cutting tool comprising a base material and a coating; wherein: the coating comprises a titanium compound layer and an a-Al2O3 layer; the a-Al2O3 layer comprises a region A1 and a region A2; the titanium compound layer comprises a region B1 and a region B2; an average particle diameter a1 of the a-Al2O3 particles in the region A1, an average particle diameter a2 of the a-Al2O3 particles in the region A2, an average particle diameter b1 of the titanium compound particles in the region B1, and an average particle diameter b2 of the titanium compound particles in the region B2 satisfy relationships represented by respective expressions 1 to 3:
0.80≤a2/b2≤1.27 Expression 1
1.50≤a1/a2≤10 Expression 2
1.45≤b1/b2≤5 Expression 3
: and
the average particle diameter b1 is 0.10 μm or more and 0.50 μm or less.
A cubic boron nitride sintered material comprising cubic boron nitride grains and a binder, in which a content of the cubic boron nitride grains is no less than 30% by volume and no more than 80% by volume, the binder includes at least one selected from a second group consisting of a material made of a single element selected from a first group consisting of a group 4 element, a group 5 element and a group 6 element of the periodic table, aluminum, silicon, iron, cobalt and nickel, and an alloy and an intermetallic compound each composed of no less than two elements selected from the first group, and a content of a void in the cubic boron nitride sintered material is no less than 0.001% by volume and no more than 0.20% by volume.
C04B 35/5831 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de non oxydes à base de borures, nitrures ou siliciures à base de nitrure de bore à base de nitrure de bore cubique
C04B 38/00 - Mortiers, béton, pierre artificielle ou articles de céramiques poreuxLeur préparation
A drill head is rotated about a center axis. The drill head includes: a mounting surface that is an end face in a direction of the center axis; a tip surface that is an opposite surface to the mounting surface in the direction of the center axis; an outer peripheral surface continuous to the mounting surface and the tip surface; a cutting edge extending from the outer peripheral surface toward the center axis in the tip surface; a flute that is formed on the outer peripheral surface and extends spirally around the center axis from the tip surface to the mounting surface; and a thinning surface continuous to the tip surface and the flute. The tip surface includes: a first flank surface continuous to the cutting edge; and a second flank surface located on a side opposite to the first flank surface with the flute interposed therebetween.
This cutting insert comprises a rake face, a clearance face, and a cutting edge formed by a ridge between the rake face and the clearance face. The cutting edge includes a first cutting edge portion for corner cutting, a second cutting edge portion for pull cutting, a third cutting edge portion for finished-face cutting, a first connecting cutting edge portion, and a second connecting cutting edge portion. The third cutting edge portion is disposed between the first cutting edge portion and the second cutting edge portion. The first cutting edge portion has a curved shape. The radius of curvature of the first cutting edge portion is between 0.1 mm and 2.4 mm inclusive. The second cutting edge portion has a linear shape or a curved shape with the radius of curvature of 3 mm or more. The third cutting edge portion has a linear shape or a curved shape with the radius of curvature of 3 mm or more. Each of the first connecting cutting edge portion and the second connecting cutting edge portion has a curved shape.
B23B 27/14 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier
B23B 1/00 - Méthodes de tournage ou méthodes de travail impliquant l'utilisation de toursUtilisation d'équipements auxiliaires en relation avec ces méthodes
5 ppma or less in a first region surrounded by a surface of the diamond layer and a first imaginary plane located at a distance of 1 μm from the surface in a thickness direction.
B23B 27/20 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier à éléments tranchants constitués par des diamants
A sintered material includes diamond grains and a binder. A boron concentration in the diamond grains is more than or equal to 0.001 mass % and less than or equal to 0.9 mass %. A boron concentration in the binder is more than or equal to 0.5 mass % and less than or equal to 40 mass %.
B22F 5/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques caractérisée par la forme particulière du produit à réaliser
B22F 9/04 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau solide, p. ex. par broyage, meulage ou écrasement à la meule
C22C 1/05 - Mélanges de poudre métallique et de poudre non métallique
A first main trajectory represents a trajectory of a first main cutting edge obtained by revolving and projecting the first main cutting edge onto a plane including a central axis. A second main trajectory represents a trajectory of the second main cutting edge obtained by revolving and projecting the second main cutting edge onto the plane. The first main trajectory intersects the second main trajectory. A tangent to the first main trajectory at an intersection between the first main trajectory and the second main trajectory is inclined to be closer to the central axis in a direction from the first surface toward the second surface. A tangent to the second main trajectory at the intersection is inclined to be closer to the central axis in a direction from the second surface toward the first surface.
This cutting tool is equipped with a cutting edge portion comprising a cubic boron nitride sintered body. The cutting edge portion has a flank face, a rake face continuous with the flank face, and a cutting blade located at the ridge line of the flank face and the rake face, the arithmetic mean height Sa of the flank face is 0.5 μm to 3.0 μm, Sa being measured in accordance with ISO 25178-2:2012, and the oxygen concentration of the flank face is 10 mass% to 50 mass%.
B23B 27/20 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier à éléments tranchants constitués par des diamants
B23B 27/14 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier
C04B 35/5831 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de non oxydes à base de borures, nitrures ou siliciures à base de nitrure de bore à base de nitrure de bore cubique
A cutting tool includes a rake face, a flank face, and a cutting edge ridge line connecting the rake face and the flank face. A portion of the rake face and a portion of the flank face adjacent to the cutting edge ridge line are made of a diamond sintered body including diamond grains. A dislocation density in the portion of the flank face is 8×1015/m2 or less. The diamond grains have an average grain size of 0.1 μm to 50 μm. A content ratio of the diamond grains in the diamond sintered body is 80% by volume to 99% by volume.
This drill comprises a flank surface, a rake surface, and a main cutting edge on the ridge between the flank surface and the rake surface. The main cutting edge includes a first curved part having a curved shape and continuous with the flank surface, and a second curved part having a curved shape and continuous with the rake surface, in a cross-sectional view orthogonal to the extending direction of the main cutting edge. A first radius of curvature of the first curved part is greater than a second radius of curvature of the second curved part.
C23C 30/00 - Revêtement avec des matériaux métalliques, caractérisé uniquement par la composition du matériau métallique, c.-à-d. non caractérisé par le procédé de revêtement
B23B 27/14 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier
C23C 14/06 - Revêtement par évaporation sous vide, pulvérisation cathodique ou implantation d'ions du matériau composant le revêtement caractérisé par le matériau de revêtement
C23C 14/32 - Évaporation sous vide par explosionÉvaporation sous vide par évaporation suivie d'une ionisation des vapeurs
This drill comprises a twisted flute face, a flank, and a thinning face. A ridge line between the thinning face and the flank constitutes a thinning cutting edge. The thinning cutting edge includes a curved thinning cutting edge portion and a straight thinning cutting edge portion. The curved thinning cutting edge portion is convex toward the front in a direction of rotation. The straight thinning cutting edge portion is continuous with 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. An axial rake angle of the curved thinning cutting edge portion, in a cross section perpendicular to a tangent of the curved thinning cutting edge portion as seen from an axial direction, increases with increasing distance from the first end portion. When seen in the axial direction, a radius of curvature of the curved thinning cutting edge portion is at least equal to 15% and at most equal to 35% of a diameter of the drill.
This drill comprises a cutting edge, a twisted flute face, a first outer peripheral margin face, and an approach face. The twisted flute face is continuous with the cutting edge. The first outer peripheral margin face is positioned rearward, in a direction of rotation, of an outermost peripheral end of the cutting edge, and has a diameter greater than a diameter of the cutting edge. The approach face is positioned between the first outer peripheral margin face and the twisted flute face, is continuous with the outermost peripheral end, and is formed along a leading edge of the twisted flute face. When seen in a direction along an axis, the approach face is inclined relative to the first outer peripheral margin face. A length of the approach face in a direction parallel to the axis is at least equal to 0.5 times the diameter of the first outer peripheral margin face.
B23B 27/14 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier
B23C 5/16 - Outils de fraisage caractérisés par des particularités physiques autres que la forme
C23C 14/06 - Revêtement par évaporation sous vide, pulvérisation cathodique ou implantation d'ions du matériau composant le revêtement caractérisé par le matériau de revêtement
abcdeffN. Here, 0.49 ≤ a ≤ 0.70, 0.19 ≤ b ≤ 0.40, 0.10 < c ≤ 0.20, a+b+c=1.00, 0.39 ≤ d ≤ 0.60, 0.29 ≤ e ≤ 0.50, 0.10 < f ≤ 0.20, d+e+f=1.00, 0.05 ≤ a-d ≤ 0.20, and 0.05 ≤ e-b ≤ 0.20. In the first layer the percentage ratio of the number of titanium atoms relative to the total number of titanium, aluminum and boron atoms is 45% or more.
B23B 27/14 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier
B23B 5/16 - Machines ou dispositifs à tourner spécialement conçus pour un travail particulierAccessoires correspondants spécialement conçus à cet effet pour biseauter, chanfreiner, ou ébavurer les extrémités de barres ou de tubes
C23C 14/06 - Revêtement par évaporation sous vide, pulvérisation cathodique ou implantation d'ions du matériau composant le revêtement caractérisé par le matériau de revêtement
A cutting tool includes a substrate and a hard layer, wherein
the hard layer includes a first unit layer and a second unit layer being alternately layered in the hard layer,
a thickness of the first unit layer is 2 to 100 nm,
a thickness of the second unit layer is 2 to 100 nm,
the first unit layer is composed of TiaAlbBcN,
the second unit layer is composed TidAleBfN,
an atomic ratio a satisfy 0.25≤a<0.45,
an atomic ratio b satisfy 0.55≤b<0.75,
an atomic ratio c satisfy 0
B23B 27/14 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier
C23C 14/06 - Revêtement par évaporation sous vide, pulvérisation cathodique ou implantation d'ions du matériau composant le revêtement caractérisé par le matériau de revêtement
C23C 14/32 - Évaporation sous vide par explosionÉvaporation sous vide par évaporation suivie d'une ionisation des vapeurs
This sintered body comprises diamond particles and a binding material. The boron concentration in the diamond particles is 0.001-0.9 mass% inclusive. The boron concentration in the binding material is 0.5-40 mass% inclusive.
B23B 27/14 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier
B23B 27/20 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier à éléments tranchants constitués par des diamants
C22C 1/05 - Mélanges de poudre métallique et de poudre non métallique
C04B 35/52 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de non oxydes à base de carbone, p. ex. graphite
This cemented carbide comprises: a first phase comprising tungsten carbide particles; and a second phase including cobalt as a main component. The total content of the first phase and the second phase in the cemented carbide is 97 vol% or more, the average value of the circle-equivalent diameters of the tungsten carbide particles is 0.8 μm or less, the cobalt content of the cemented carbide is 3-10 mass%, the vanadium content of the cemented carbide is 0.01-0.30 mass%, and the maximum value of the vanadium content in an interface region between the second phase and the (0001) crystal planes of the tungsten carbide particles is 15 at% or less.
C22C 29/08 - Alliages à base de carbures, oxydes, borures, nitrures ou siliciures, p. ex. cermets, ou d'autres composés métalliques, p. ex. oxynitrures, sulfures à base de carbures ou de carbonitrures à base de carbures mais ne contenant pas d'autres composés métalliques à base de carbure de tungstène
B22F 1/00 - Poudres métalliquesTraitement des poudres métalliques, p. ex. en vue de faciliter leur mise en œuvre ou d'améliorer leurs propriétés
96.
DIAMOND SINTERED MATERIAL AND TOOL INCLUDING DIAMOND SINTERED MATERIAL
A diamond sintered material includes diamond grains, wherein a content ratio of the diamond grains is more than or equal to 80 volume % and less than or equal to 99 volume % with respect to the diamond sintered material, an average grain size of the diamond grains is more than or equal to 0.1 μm and less than or equal to 50 μm, and a dislocation density of the diamond grains is more than or equal to 8.1×1013 m−2 and less than 1.0×1016 m−2.
A cutting tool, including a cutting edge portion composed of a cubic boron nitride sintered material, wherein the cutting edge portion has: a flank face; a rake face contiguous to the flank face; and a cutting edge positioned on a ridgeline of the flank face and the rake face, an arithmetical mean height Sa of the flank face is 0.5 μm or more and 3.0 μm or less, the Sa is measured in accordance with ISO25178-2:2012, and an oxygen concentration of the flank face is 10 mass % or more and 50 mass % or less.
A method of measuring a concentration of nitrogen in diamond includes a first step, a second step, and a third step. In the first step, diamond is arranged in the inside of an integrating sphere. In the second step, visible light is emitted to the inside of the integrating sphere and the visible light that is reflected by an inner surface of the integrating sphere and passes through or is reflected by diamond arranged in the inside of the integrating sphere is received. In the third step, the concentration of nitrogen in diamond is calculated based on data on received visible light and a mass of diamond.
G01N 21/27 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en utilisant la détection photo-électrique
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