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
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.
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 composition; Compositions céramiques; Traitement 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 siliciures; Préparation 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
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'u 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
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.
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.
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 tours; Utilisation d'équipements auxiliaires en relation avec ces méthodes
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 composition; Compositions céramiques; Traitement 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
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.
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 particulier; Accessoires 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
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 composition; Compositions céramiques; Traitement 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 métalliques; Traitement des poudres métalliques, p.ex. en vue de faciliter leur mise en œuvre ou d'améliorer leurs propriétés
A cutting insert includes a top surface, a bottom surface, and an outer peripheral surface. A ridgeline between the top surface and the outer peripheral surface surface includes a first cutting edge, a corner cutting edge, and a second cutting edge. A protrusion is provided on the top surface. When viewed in a direction perpendicular to the bottom surface, the protrusion extends along a bisector of an angle formed by the first cutting edge and the second cutting edge. When viewed in a first direction, an intersection of the corner cutting edge and the bisector is defined as a reference point. In a first cross-section that is perpendicular to the bisector and in which the distance from the reference point is 0.5 mm, the distance between the first cutting edge and the protrusion in the direction perpendicular to the bottom surface is defined as a first distance. In a second cross-section that is perpendicular to the bisector and in which the distance from the reference point is 1.5 mm, the distance between the first cutting edge and the protrusion in the direction perpendicular to the bottom surface is defined as a third distance. The third distance is greater than the first distance. A ratio of the height of the protrusion to the width of the protrusion in the second cross-section is less than a ratio of the height of the protrusion to the width of the protrusion in the first cross-section.
The present invention provides a cemented carbide which is composed of a hard phase and a binder phase, wherein: the hard phase contains tungsten carbide as a main component; the binder phase contains cobalt as a main component; with respect to the hard phase, the ratio D10/D90 of the 10% cumulative particle diameter D10 on the area basis to the 90% cumulative particle diameter D90 on the area basis is 0.30 or more; with respect to the binder phase, the ratio D10/D90 of the 10% cumulative particle diameter D10 on the area basis to the 90% cumulative particle diameter D90 on the area basis is 0.23 or more; the average particle diameter of the binder phase is 0.25 µm to 0.50 µm; and the average particle diameter of the hard phase is 0.30 µm to 0.60 µm.
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 1/05 - Mélanges de poudre métallique et de poudre non métallique
This cutting tool has a head, a shank, and a clamping screw. The head has a body section and an engaging section connected to the body section. The shank engages with the engaging section. The clamping screw fixes the head to the shank. The body section is cylindrical. A cutting blade section is formed on the outer peripheral side of the body section. The tightening screw has: a head section having a first outer peripheral surface; and a shaft section that is connected to the head section and located farther to rear end side in the axial direction than the head section. The body section is provided with a recess in which the head section is located and a through hole through which the shaft section is inserted. The recess is defined by: the first inner peripheral surface formed along the shape of the first outer peripheral surface; and a first bottom surface located farther to the rear end side in the axial direction than the first inner peripheral surface. The first inner peripheral surface surrounds the through hole and has a rotationally symmetrical and non-circular shape when viewed in the axial direction.
The present invention provides a cubic boron nitride sintered body which comprises cubic boron nitride particles, a binder phase and voids, wherein: the percentage of the cubic boron nitride particles relative to the sum of the cubic boron nitride particles and the binder phase on a volume basis is 40% by volume to 70% by volume; the percentage of the binder phase relative to the sum of the cubic boron nitride particles and the binder phase on a volume basis is 30% by volume to 60% by volume; the binder phase contains 10% by volume to 100% by volume of aluminum oxide particles relative to the entire binder phase; the average particle diameter of the aluminum oxide particles is 50 nm to 250 nm; one or more first voids are contained in an amount of 0.001% by volume to 0.100% by volume; and at least a part of each one of the first voids is in contact with the aluminum oxide particles.
C04B 35/5831 - Produits céramiques mis en forme, caractérisés par leur composition; Compositions céramiques; Traitement 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
232323232323233 particles in the region A2, the average particle size b1 of the titanium compound particles in the region B1, and the average particle size b2 of the titanium compound particles in the region B2 satisfy the relationships indicated by formula 1: 0.80≤a2/b2≤1.27, formula 2: 1.50≤a1/a2≤10, and formula 3: 1.45≤b1/b2≤5, and the average particle size b1 is 0.10-0.50 μm.
This cutting tool is rotated about a central axis, and has a tip end in an axial direction along the central axis. The cutting tool comprises: a body; blades; first attachment screws; adjusting pieces; and second attachment screws. The body has an outer peripheral surface. Pockets are formed in the outer peripheral surface, in tip portions on the tip end side. The blades are attached to the body in the pockets by screwing the first attachment screws to the body. Each blade has a blade side surface which faces inward in a radial direction that is perpendicular to the axial direction and that passes through the central axis. An inner wall surface of each pocket has a contacting surface that faces the blade side surface in the radial direction across a gap. The gap between the blade side surface and the contacting surface decreases with increasing distance from the tip end in the axial direction. The adjusting pieces are disposed between the blade side surfaces and the contacting surfaces. The second attachment screws are screwed into the body, and move the adjusting pieces in the axial direction by advancing and retreating in the axial direction.
A mold for an ultra-high pressure generator made of cemented carbide, wherein the cemented carbide comprises a first phase made of a plurality of tungsten carbide particles and a second phase containing cobalt, the Vickers hardness of the cemented carbide is 2000 Hv or greater, the die strength of the cemented carbide is 2.3 GPa or greater, the mold for an ultra-high pressure generator has a truncation surface, and the compressive residual stress of the truncation surface is 1.50 GPa or greater.
B22F 5/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques caractérisée par la forme particulière du produit à réaliser
B30B 5/00 - Presses caractérisées par l'emploi d'organes de pression autres que ceux mentionnés dans les groupes et
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
B01J 3/06 - Procédés utilisant des hyper-pressions, p.ex. pour la formation de diamants; Appareillage approprié, p.ex. moules ou matrices
B22F 3/24 - Traitement ultérieur des pièces ou objets
This cutting insert has a first face, a second face and an outer peripheral face. The ridge line between the first surface and the outer peripheral surface constitutes a first ridge line. The ridge line between the second surface and the outer peripheral surface constitutes a second ridge line. The first ridge line has a first linear section, a first flat cutting blade, a first corner cutting blade and a second linear section. The second ridge line has a third linear section, a second flat cutting blade, a second corner cutting blade, and a fourth linear section. The outer peripheral surface has a first flat flank surface, a first corner flank surface, a second flat flank surface, a second corner flank surface, a first planar surface and a second planar surface. The first planar surface connects to both the first corner flank surface and the second flat flank surface. A second planar surface connects to both the second corner flank surface and the first flat flank surface. The first planar surface and the second planar surface each extends in the direction perpendicular to the direction from the first surface towards the second surface.
The present invention provides a cemented carbide which comprises a first phase that is composed of a plurality of tungsten carbide particles and a second phase that contains cobalt; this cemented carbide contains not less than 78% by volume but less than 100% by volume of the first phase, while containing more than 0% by volume but not more than 22% by volume of the second phase; the average of the circle-equivalent diameters of the tungsten carbide particles is 0.5 µm to 1.2 µm; the tungsten carbide particles contain 13% or less of first tungsten carbide particles, which have a circle-equivalent diameter of 0.3 µm or less, on a number basis; and the tungsten carbide particles contain 12% or less of second tungsten carbide particles, which have a circle-equivalent diameter of more than 1.3 µm, on a number basis. With respect to a histogram showing the distribution of the circle-equivalent diameters of the tungsten carbide particles, the ratio Fmax/Fmin of the maximum frequency Fmax to the minimum frequency Fmin is 7.0 or less; classes on the horizontal axis of the histogram show the circle-equivalent diameters of the tungsten carbide particles, and the width of the classes is 0.1 µm; frequencies on the vertical axis of the histogram show the number-based percentages of the tungsten carbide particles in respective classes relative to all tungsten carbide particles; the maximum frequency Fmax is the maximum frequency in a first range where the circle-equivalent diameter is more than 0.3 µm but not more than 1.3 µm; the minimum frequency Fmin is the minimum frequency in the first range; and the cobalt content ratio of this cemented carbide is more than 0% by mass but not more than 10% by 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
B23C 5/06 - Fraises à surface, c. à d. fraises n'ayant qu'une surface de coupe pratiquement plate, ou principalement une telle surface
B23C 5/16 - Outils de fraisage caractérisés par des particularités physiques autres que la forme
C22C 1/05 - Mélanges de poudre métallique et de poudre non métallique
A cubic boron nitride sintered body comprising cubic boron nitride particles and a binding material, wherein the percentage content of the cubic boron nitride particles in the cubic boron nitride sintered body is 30-80 vol.%, the binding material includes at least one selected from a second group consisting of an elemental substance of one element selected from a first group consisting of aluminum, silicon, iron, cobalt, nickel, group-4 elements, group-5 elements, and group-6 elements of the periodic table, and alloys and intermetallic compounds formed of two or more elements selected from the first group, or includes at least one selected from a fourth group consisting of compounds each formed of one element selected from the first group and at least one element selected from a third group consisting of nitrogen, carbon, boron, and oxygen, and solid solutions of the compounds, wherein the percentage content of voids in the cubic boron nitride sintered body is 0.001-0.20 vol.%.
C04B 35/5831 - Produits céramiques mis en forme, caractérisés par leur composition; Compositions céramiques; Traitement 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
A cubic boron nitride polycrystalline substance comprising 99.5 vol% or more of cubic boron nitride, wherein the thermal conductivity of the cubic boron nitride polycrystalline substance is 300 W/mK or more, the carbon content of the cubic boron nitride polycrystalline substance in terms of mass is 100-1000 ppm, the cubic boron nitride polycrystalline substance includes multiple crystal grains, and the median diameter d50 of the circle equivalent size of the multiple crystal grains is 0.9-10 μm.
C04B 35/5831 - Produits céramiques mis en forme, caractérisés par leur composition; Compositions céramiques; Traitement 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
27.
CUBIC BORON NITRIDE SINTERED COMPACT AND HEAT SINK USING SAME
The present invention provides a cubic boron nitride sintered compact that contains 90.0-99.5 mass% cubic boron nitride and at 0.5-10.0 mass% silicon, the total content of the cubic boron nitride and the silicon being 94.0-100 mass%.
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
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
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
x1-xy1-y1-y where x is more than 0.65 but less than 0.95 and y is not less than 0 but less than 0.1; the crystal grains have an average aspect ratio of more than 3.0 but not more than 10.0 in a first region constituted by a region that is sandwiched between a surface S1 of the first layer or an interface S2 of the first layer on the surface side and a first imaginary plane VS1; the crystal grains have an average aspect ratio of not more than 3.0 in a second region constituted by a region that is sandwiched between the first imaginary plane VS1 and an interface S3 of the first layer on the base material side; the first imaginary plane VS1 passes through a point 1 μm from the interface S3 on the surface side and is parallel to the interface S3; the crystal grains include crystal grains with a cubic structure; the percentage of area occupied by the crystal grains with the cubic structure is not less than 90% in the first layer; the average aspect ratio and the percentage of area are measured at a cross section along a normal of the interface between the base material and the film; and the first layer has a thickness of 2-20 μm.
x1-xy1-y1-y, where x is greater than 0.65 and less than 0.95, y is 0 or more and less than 0.1; the average aspect ratio of the crystal grains is 3.0 or less; the crystal grains include crystal grains having a cubic crystal structure; in the first layer, the surface area ratio of the crystal grains having a cubic crystal structure is 90% or higher; the average aspect ratio and the surface area ratio are measured at a cross section along the normal line from the interface between the substrate and the coating; and the thickness of the first layer is 2-20 μm.
x1-xy1-y1-y, where x is greater than 0.65 and less than 0.95 and y is 0 or more and less than 0.1; in a first region comprising a region between a first virtual plane VS1 and a surface S1 of the first layer or a surface-side interface S2 of the first layer, the average aspect ratio of the crystal grains is 3.0 or lower; in a second region comprising a region between a first virtual plane VS1 and a substrate-side interface S3 of the first layer, the average aspect ratio of the crystal grains is greater than 3.0 and 10.0 or less; the first virtual plane VS1 passes a point positioned on the substrate side at a distance of 1 μm apart from the surface S1 or the interface S2 and is parallel to the surface S1 or the interface S2; the crystal grains include crystal grains having a cubic crystal structure; in the first layer, the surface area ratio of the crystal grains having a cubic crystal structure is 90% or higher; the average aspect ratio and the surface area ratio are measured at a cross section along the normal line from the interface between the substrate and the coating; and the thickness of the first layer is 2-20 μm.
This composite polycrystal contains diamond particles and non-diamond carbon, wherein: the sum of the diamond particle content Vd and the non-diamond carbon content Vg is greater than 99 vol% with respect to the composite polycrystal; the median diameter d50 of the diamond particles is 10 nm to 200 nm; the dislocation density of the diamond particles is 1.0×1013m-2to 1.0×1016m-2; and the diamond particle content Vd and the non-diamond carbon content Vg satisfy the relationship represented by expression 1, 0.01
A diamond polycrystal body comprising diamond particles, in which the content of the diamond particles is more than 99% by volume relative to the volume of the diamond polycrystal body, the median diameter d50 of the diamond particles is 10 nm to 200 nm inclusive, and the dislocation density of the diamond particles is 0.1×1015m-2or more and less than 2.0×1015m-2.
A diamond polycrystalline body that includes diamond particles. The diamond particle content of the diamond polycrystalline body is greater than 99 vol%, the median diameter d50 of the diamond particles is 10–200 nm, and the dislocation density of the diamond particles is at least 2.0×1015m-2but no more than 4.0×1016m-2.
A cutting tool equipped with a substrate and a film positioned on the substrate, wherein: the film contains a hard carbon film on the outermost surface thereof; the hard carbon film includes a first region; the first region is sandwiched between the surface of the hard carbon film and a virtual plane P, the distance of which from said surface toward the substrate side is 40nm; and an sp2 component amount C2 and an sp3 component amount C3 in the first region satisfy the relationship in formula 1. Formula 1: {C2/(C2+C3)}×100≤2.0
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
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
A cutting tool provided with a base material and a coating provided on the base material. The coating includes a first alumina layer provided on the base material, a titanium compound layer provided immediately above the first alumina layer, and a second alumina layer provided immediately above the titanium compound layer. A portion of the first alumina layer adjacent to the titanium compound layer forms an interface region. A portion of the first alumina layer that is not the interface region forms a non-interface region. The nitrogen content in the interface region is 0.2-11 at%, inclusive. The nitrogen content in the non-interface region is 0-0.15 at%, inclusive. The titanium compound layer includes a titanium oxycarbonitride layer that is adjacent to the first alumina layer.
A cutting tool comprising: a base; and a coating film provided on the base, wherein the coating film includes a first alumina layer provided on the base, a titanium compound layer provided immediately on the first alumina layer, and a second alumina layer provided immediately on the titanium compound layer, a portion of the first alumina layer adjacent to the titanium compound layer forms an interface region, a portion of the first alumina layer but not the interface region forms a non-interface region, the content ratio of nitrogen in the interface region is 0.2-12 at%, the content ratio of nitrogen in the non-interface region is 0-0.15 at%, the titanium compound layer includes a multilayer-structure layer located adjacent to the first alumina layer, the multilayer-structure layer includes a first unit layer and a second unit layer, the first unit layer and the second unit layer are alternately layered in the multilayer-structure layer, the first unit layer is made of titanium carbonitride, and the second unit layer is made of titanium oxycarbonitride.
A cutting tool provided with a base material and a coating film provided on the base material, in which the coating film comprises a first alumina layer arranged on the base material, a titanium compound layer arranged immediately above the first alumina layer, and a second alumina layer arranged immediately above the titanium compound layer, a region in the first alumina layer which is located adjacent to the titanium compound layer constitutes an interfacial region, a region in the first alumina layer which does not correspond to the interfacial region constitutes a non-interfacial region, the content of nitrogen in the interfacial region is 0.2 at% to 10.5 at% inclusive, the content of nitrogen in the non-interfacial region is 0 at% to 0.15 at% inclusive, and the titanium compound layer includes a titanium carbonitride layer that is located adjacent to the first alumina layer.
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
1-xx1-xx1-xxhchchh of the X-ray diffraction peak derived from the hexagonal aluminum nitride are determined by performing X-ray diffraction measurement on the hard layer.
A boring tool 10 has a cutting insert 1, a holder 2, and a pressing member 3. The cutting insert includes a base member 50 and a cutting member 30. The base member includes a first side surface 11, a second side surface 12, a third side surface 13, and a fourth side surface 14. The holder includes a front end surface 74, a rear end surface 75, and an outer peripheral surface 76. The holder is provided with a first hole 71 and a second hole 72. 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 79. A surface defining the second hole includes a first inner side surface 91 and a second inner side surface 92. 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. The base member is disposed in the second hole. The first side surface is in contact with the first inner side surface. The second side surface is in contact with the second inner side surface. The third side surface is in contact with the stopper. When viewed in a direction along a direction in which the second hole extends, a distance between the first inner side surface and the second inner side surface is decreased in a direction from the front end surface toward the rear end surface.
B23B 27/00 - Outils pour machines à tourner ou à aléser; Outils de type similaire en général; Accessoires de ces outils
B23B 27/06 - Outils de coupe profilés, c. à d. outils à façonner
B23B 27/10 - Outils de coupe avec une disposition particulière pour le refroidissement
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
This rotary cutting tool includes: a plurality of cutting inserts; and a body. The body includes a first surface, a second surface, and an outer peripheral surface. First pockets and second pockets are provided alternately in the circumferential direction to the body. The plurality of cutting inserts include a first cutting insert that is arranged in the first pockets, and a second cutting insert that is arranged in the second pockets. A first main trajectory is understood to be the trajectory of a first main cutting edge obtained by revolved projection of the first main cutting edge on a plane that includes a central axis. A second main trajectory is understood to be the trajectory of a second main cutting edge obtained by revolved projection of the second main cutting edge on the plane. The first main trajectory intersects with the second main trajectory. The tangent of the first main trajectory at the intersection between the first main trajectory and the second main trajectory is inclined so as to increasingly approach the central axis going from the first surface toward the second surface. The tangent of the second main trajectory at the intersection is inclined so as to increasingly approach the central axis going from the second surface toward the first surface.
This method for measuring the nitrogen concentration in a diamond has a first step, a second step, and a third step. In the first step, a diamond is placed inside an integrating sphere. In the second step, visible light is made incident on the inside of the integrating sphere, and visible light the is reflected by the inner surface of the integrating sphere and transmitted through or reflected by the diamond placed inside the integrating sphere is received. In the third step, the nitrogen concentration in the diamond is calculated on the basis of data of the received visible light and the mass of the diamond.
G01J 3/46 - Mesure de couleur; Dispositifs de mesure de couleur, p.ex. colorimètres
G02B 27/00 - Systèmes ou appareils optiques non prévus dans aucun des groupes ,
G01N 21/27 - Couleur; Propriétés 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
This cemented carbide has a first phase comprising tungsten carbide particles, and a second phase containing cobalt, wherein the cemented carbide contains chromium and vanadium, the percentage by mass of the chromium with respect to the cobalt is 5-9%, the percentage by mass of the vanadium with respect to the cobalt is 2-5%, the surface ratio of the second phases is 7.5-13.5 area%, the number of second phases is at least 1000, and the area ratio of the second phase and the number of second phases are estimated in a measurement field of view of 101 µm2 by image processing on a scanning electron microscopy image of a cross section of the cemented carbide.
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
xyzxyzxyzxyzFRFRDD per 100 µm in length of the TiMAlN layer positioned on the flank face in a cross section obtained by cutting the TiMAlN layer in a plane including a normal to the flank face is no greater than 3.
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
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
50.
CEMENTED CARBIDE, AND MOLD WHICH IS FOR ULTRAHIGH-PRESSURE GENERATING DEVICE AND USES SAME
This cemented carbide comprises a first phase composed of a plurality of tungsten carbide particles and a second phase containing cobalt, and said cemented carbide contains chromium and vanadium, wherein: the mass-based percentage of the chromium to the cobalt is 5-9%; the mass-based percentage of the vanadium to the cobalt is 2-5%; the area ratio of the second phase is 7.5-13.5 area%; the number of the second phases is a least 1,000; and the area ratio of the second phase and the number of the second phases are measured in a measurement visual field of 101 μm2 by performing image processing on the scanning electron microscopic image of the cross section of said cemented carbide.
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 according to one embodiment of the present disclosure is rotatable around the rotational axis and is provided with a body part. The body part has a lead end surface, a rear end surface, and a side surface. In the side surface of the body part, first and second spiral-shaped grooves are formed. The second groove is adjacent to the first groove on the retard side in the rotational direction in the body part. The first groove includes four or more attachment surfaces to attach a cutting insert. The first attachment surface is positioned furthest to the rear end surface side among the four or more attachment surfaces. The second attachment surface is positioned further to the lead end surface side than the first attachment surface. The length from the first attachment surface to the second groove in the circumferential direction along the rotational direction of the body part is a first length. The length from the second attachment surface to the second groove in the circumferential direction is a second length. The first length is longer than the second length.
This drill head rotates about a central axis. The drill head comprises: an attachment surface which is an end surface in the central axis direction; a tip end surface which is the reverse surface to the attachment surface in the central axis direction; an outer circumferential surface which is continuous with the attachment surface and the tip end surface; a cutting edge which, on the tip end surface, extends from the outer circumferential surface and toward the central axis; a flute which is formed in the outer circumferential surface and which extends from the tip end surface in a spiral manner about the central axis so as to reach the attachment surface; and a thinning surface which is continuous with the tip end surface and the flute. The tip end surface has a first flank surface which is continuous with the cutting edge and a second flank surface which is on the opposite side from the first flank surface with the flute therebetween. The cutting edge has a main cutting edge which is continuous with the outer circumferential surface and a thinning cutting edge which is continuous with the main cutting edge and which is more toward the central axis than is the main cutting edge.
This drill that rotates around an axis has a flank face, a thinning face, an outer peripheral face, and a chip evacuating face. The thinning face is contiguous to the flank face. The outer peripheral face is contiguous to both the flank face and the thinning face. The chip evacuating face is contiguous to both the flank face and the outer peripheral face. The ridge line between the flank face and the chip evacuating face constitutes a cutting edge. The outer peripheral face is provided with a first margin that is contiguous to both the cutting edge and the flank face, and a second margin that is positioned behind the first margin in the rotational direction and is at a distance from both the flank face and the thinning face. Both the outer peripheral part of the first margin and the outer peripheral part of the second margin have a back taper of the same angle. In a direction parallel to the axis, the distance between the front tip of the first margin and the front tip of the second margin is from 3-5 mm, inclusive.
Formed in a first main body is a first flow path that is continuous with a coolant inlet and that extends in a first direction. Formed in a second main body is a second flow path that is continuous with a coolant outlet and that extends in a second direction, which is inclined with respect to the first direction. Formed in a third main body is a boundary flow path that is continuous with both the first flow path and the second flow path. In a first cross section that intersects with the first flow path, the boundary flow path, and the second flow path, the boundary flow path is formed by a pair of opposite boundary wall surfaces. On at least one of the pair of boundary wall surfaces, the inclination of a tangent on the boundary wall surface continuously changes. In a second cross section that is perpendicular to the direction in which the coolant flows, assuming that the direction in which the pair of boundary wall surfaces face each other is the vertical direction and a direction perpendicular to the vertical direction is the horizontal direction, the horizontal width of the first flow path is greater than the vertical width of the first flow path, and the horizontal width of the second flow path is greater than the vertical width of the second flow path.
B23B 27/10 - Outils de coupe avec une disposition particulière pour le refroidissement
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
abcabcabcabc(200)(002)(200)(002)(002) from the (002) plane, is between 2 and 10 inclusive. The width at half-value of the X ray diffraction peak from the (002) plane is between 2 degrees and 8 degrees inclusive.
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
abcdefabcabcabcdefdefdeffN is 0-0.1 (exclusive of 0); the total of the atomic ratio d, the atomic ratio e, and the atomic ratio f is 1; the atomic ratio a and the atomic ratio d satisfy 0.05≤d-a≤0.2; and the atomic ratio b and the atomic ratio e satisfy 0.05≤b-e≤0.2.
The drill rotates around a central axis and has a rake face, a flank face, and a thinning face. The flank face is connected to the rake face. The thinning face is connected to each of the rake face and the flank face. A ridgeline between the rake face and the flank face includes an outer cutting edge. A ridgeline between the thinning face and the flank face includes a first thinning portion connected to the outer cutting edge, and a second thinning portion connected to the first thinning portion. When viewed in the direction along the central axis, the first thinning portion is linear and the second thinning portion is curved. When a straight line passing through the central axis and parallel to the first thinning portion is defined as a first straight line, and a straight line perpendicular to the first straight line is defined as a second straight line when viewed in the direction along the central axis, the first thinning portion and a boundary between the first thinning portion and the second thinning portion are located rearward in the rotation direction with respect to the first straight line and are located forward in the rotation direction with respect to the second straight line.
This cemented carbide includes a first hard phase and a bonded phase, wherein: the first hard phase is composed of tungsten carbide particles; the bonded phase is composed of cobalt, nickel, iron, and chromium as constituent elements; the average content ratios of the respective constituent elements in the bonded phase are all 10-30 at%; the cemented carbide does not include a second hard phase, or the content of the second hard phase is at most 2 mass% with respect to the total amount of the cemented carbide; and the second hard phase is composed of a compound containing at least one metal element selected from the group consisting of Group 4 elements, Group 5 elements, and Group 6 elements, excluding tungsten, in the periodic table, and at least one element selected from the group consisting of carbon, nitrogen, and oxygen.
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 1/05 - Mélanges de poudre métallique et de poudre non métallique
62.
CUTTING INSERT FOR ROTARY CUTTING TOOL, AND ROTARY CUTTING TOOL
This cutting insert for a rotary cutting tool includes a first surface, a second surface, and an outer circumferential surface. The second surface is on the opposite side of the first surface. The outer circumferential surface is continuous with the first surface and the second surface. A ridge line between the first surface and the outer circumferential surface includes a first cutting edge. A ridge line between the second surface and the outer circumferential surface includes a second cutting edge. The first surface includes a planar first seating surface. The second surface includes a planar second seating surface. The first cutting edge has a first main cutting edge section and a first sub cutting edge section. The second cutting edge has a second main cutting edge section and a second sub cutting edge section. When viewed in the direction toward the second surface from the first surface, at least a portion of the second sub cutting edge section is positioned outside of the first main cutting edge section, and at least a portion of the first sub cutting edge section is positioned outside of the second main cutting edge section. When viewed in the direction toward the second surface from the first surface, each of the first sub cutting edge and the second sub cutting edge is curved. The outer circumferential surface includes a planar third seating surface.
This cutting tool comprises: a base metal which has a seat portion provided thereto; a blade edge member made of polycrystalline diamond sintered body that contains polycrystalline diamond and a binder; and a brazing material for fixing the blade edge member to the seat portion of the base metal. The base metal has a top face, a bottom face, and a lateral face that is contiguous to the top face and the bottom face. The seat portion includes a seat bottom face that is set back from the top face toward the bottom face and that is also contiguous to the lateral face. The blade edge member comprises: a rake face that extends along the top face; a blade edge bottom face that is disposed on the side opposite to the rake face; a flank face that is contiguous to the rake face and the blade edge bottom face; and a cutting edge that is formed between the rake face and the flank face. The blade edge member has a thickness of at least 0.3 mm. The brazing material is disposed between the blade edge bottom face and the seat bottom face and is also in contact with the blade edge bottom face and the seat bottom face. The flank face is positioned on the outer side of the base metal with respect to the lateral face of the base metal.
B23B 27/18 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier à éléments tranchants fixés rigidement, p.ex. par brasage
B23B 27/20 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier à éléments tranchants constitués par des diamants
64.
CEMENTED CARBIDE AND CUTTING TOOL COMPRISING SAME AS BASE MATERIAL
Provided is cemented carbide comprising a first hard phase and a binder phase, wherein the first hard phase comprises tungsten carbide particles, the binder phase comprises cobalt, nickel, iron, and copper as constituent elements, and the average content ratio of each of the constituent elements in the binder phase is 10-30 atom%, said cemented carbide not containing a second hard phase or containing a second hard phase in an amount of not more than 2 mass% with respect to the total amount of the cemented carbide, said second hard phase comprising a compound that contains one or more metal elements which are selected from the group consisting of the elements in group 4, the elements in group 5, and the elements, except tungsten, in group 6 of the periodic table and one or more elements which are selected from the group consisting of carbon, nitrogen, and oxygen.
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 1/05 - Mélanges de poudre métallique et de poudre non métallique
65.
METHOD FOR PRODUCING DIAMOND TOOL INTERMEDIATE AND METHOD FOR DETERMINING SINGLE CRYSTAL DIAMOND
In the present invention, a single crystal diamond having a first facet surface, which is a vertical surface in a particular crystal orientation, is prepared. On the basis of the first facet surface, the single crystal diamond is fixed to a support. The support to which the single crystal diamond is fixed is associated with the irradiation direction of an X-ray, and thus an X-ray image of the single crystal diamond, in which the crystal orientation of the single crystal diamond is associated with the irradiation direction of the X-ray, is captured. On the basis of the X-ray image, the location of an inclusion in the single crystal diamond is identified. Whether or not it is possible to obtain, from the single crystal diamond, a shape of the diamond tool intermediate in which no inclusion is included in an inclusion elimination region is determined. From the single crystal diamond, the shape of the diamond tool intermediate in which no inclusion is included in the inclusion elimination region is obtained.
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
B23P 15/28 - Fabrication d'objets déterminés par des opérations non couvertes par une seule autre sous-classe ou un groupe de la présente sous-classe d'outils de coupe
A drill head comprising: a first attachment surface that is attached to a holder; a head tip surface that is on the opposite side to the first attachment surface in the axial direction which follows a central axis; and a head outer circumferential surface that continues from the first attachment surface and the head tip surface. The head outer circumferential surface has a first flute and a second flute formed thereupon that extend spirally around the central axis from the head tip surface so as to reach the first attachment surface. The first flute and the second flute are formed symmetrically, relative to the central axis. Both the first flute and the second flute each have a first end and a second end that face each other across a gap, in the circumferential direction that follows the circumference of the central axis. The first attachment surface has a first protrusion, a second protrusion, and a third protrusion that are formed extending along a radial direction orthogonal to the axial direction.
Provided is a cutting tool including a base material and a coating provided on the base material, wherein the coating contains a first layer consisting of metal tungsten and hexagonal-crystal ditungsten carbide, and the elastic deformation rate of the first layer is 43.0 to 58.0.
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
π*σ*σ*, which is the ratio of the intensity of a π*peak derived from π bonds of carbon in the graphite phase and the intensity of a σ*π*σ*π*σ*σ* for diamond particles at a position 0.5 μm deep from the surface of the cutting edge along a direction normal to the surface of the cutting edge is 0.001-0.1.
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
B23C 5/16 - Outils de fraisage caractérisés par des particularités physiques autres que la forme
This cutting tool includes a rake face, a flank, and a cutting edge, which is a blade tip ridge line joining the rake face and the flank. In this cutting tool, a portion of the rake face and a portion of the flank adjacent to the cutting edge are composed of a diamond sintered body including diamond particles. The dislocation density in the portion of the flank is at most equal to 8×1015/m2. The average particle size of the diamond particles is between 0.1 μm and 50 μm inclusive. The content of the diamond particles in the diamond sintered body is between 80 percent by volume and 99 percent by volume inclusive.
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 35/52 - Produits céramiques mis en forme, caractérisés par leur composition; Compositions céramiques; Traitement 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 sintered body is provided with diamond particles and a binder. The boron concentration in the diamond particles is 0.001-0.9 mass%. The boron concentration in the binder is 0.5-40 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 35/52 - Produits céramiques mis en forme, caractérisés par leur composition; Compositions céramiques; Traitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de non oxydes à base de carbone, p.ex. graphite
A cubic boron nitride sintered body comprising 80-96% by volume of cubic boron nitride particles and a binder, wherein the binder includes tungsten carbide, cobalt and an aluminum compound, and the hardness Hb of the cubic boron nitride sintered body and the hardness Ha of an acid-treated cubic boron nitride sintered body obtained by acid treating the cubic boron nitride sintered body and substantially removing the binder contained in the cubic boron nitride sintered body satisfy Ha/Hb ≥ 0.40.
C22C 29/16 - 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 nitrures
72.
CUBIC BORON NITRIDE SINTERED BODY, TOOL INCLUDING CUBIC BORON NITRIDE SINTERED BODY, AND METHOD FOR MANUFACTURING CUBIC BORON NITRIDE SINTERED BODY
This cubic boron nitride sintered body comprises cubic boron nitride particles and a bonded phase, wherein: the bonded phase contains aluminum nitride and aluminum diboride; the content ratio of the cubic boron nitride particles is 70-97 vol% with respect to the whole cubic boron nitride sintered body; the volume resistivity of the cubic boron nitride sintered body is at most 5×10-3 Ωcm; and when X-ray diffraction measurement is performed in an arbitrary surface or arbitrary cross section of the cubic boron nitride sintered body, the ratio of a peak intensity derived from metal aluminum to a peak intensity derived from the cubic boron nitride particles is less than 1.0%.
This cutting tool has a body, a blade, and a position adjustment screw. The body surrounds an axis. The blade has a cutting edge part and a shank part. The position adjustment screw contacts the shank part. A first hole and a second hole are provided to the body. The position adjustment screw includes a head part that contacts the shank part, and a join part that is continuous with the head part and is joined with the body. The head part has a tip end surface that contacts the shank part, a connection surface that is continuous with the join part, and an outer circumferential surface that is continuous with both the tip end surface and the connection surface. When viewed from a direction that is perpendicular to the axis, one part of the outer circumferential surface is exposed by the second hole, and the remaining part of the outer circumferential surface is covered by the body.
This cemented carbide includes a first phase comprising a plurality of tungsten carbide particles, and a second phase containing cobalt. In an image obtained by imaging the cemented carbide with a scanning electron microscope, the proportion of the first phase is 78% by surface area or greater but less than 100% by surface area, and, the proportion of the second phase is greater than 0% by surface area and at most 22% by surface area. When equivalent circle diameters are calculated for the tungsten carbide particles in the image, the mean value for the equivalent circle diameters is between 0.5 μm and 1.2 μm inclusive, the tungsten carbide particles having equivalent circle diameters of 0.3 μm or smaller occupy a count-based proportion of 10% or less, and the tungsten carbide particles having equivalent circle diameters of larger than 1.8 μm occupy a count-based proportion of less than 2%. The cemented carbide has a mass-based cobalt content of greater than 0% by mass and at most 10% by 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
A cubic boron nitride sintered body comprising cubic boron nitride particles and a binder phase, wherein the binder phase includes aluminum nitride and aluminum diboride, the content proportion of the cubic boron nitride particles is 70-97 vol% with respect to the entire cubic boron nitride sintered body, the volume resistivity of the cubic boron nitride sintered body is at most 5×10-3 Ωcm, the ratio of a peak intensity derived from metal aluminum to a peak intensity derived from the cubic boron nitride particle is less than 1.0% when X-ray diffraction measurement is performed at an arbitrarily-defined surface or an arbitrarily-defined cross-section of the cubic boron nitride sintered body, the cubic boron nitride particles include fine particles having a particle size of at most 2 μm and coarse particles having a particle size of at least 5 μm, the coarse particles may include ultra-coarse particles having a particle size of more than 12 μm, the content proportion α of the fine particles is at least 10 vol%, the content proportion β of the coarse particles is at least 30 vol%, the content proportion γ of the ultra-coarse particles is at most 25 vol% with respect to all of the cubic boron nitride particles, and the sum of the content proportion α of the fine particles and the content proportion β of the coarse particles is 50-100 vol%.
This diamond sintered body includes diamond particles, wherein the content of the diamond particles is 80 vol% to 99 vol% with respect to the diamond sintered body, the average particle diameter of the diamond particles is 0.1 μm to 50 μm, and the dislocation density of the diamond particles is 1.2×1016m-2to 5.4×1019m-2.
B23B 27/20 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier à éléments tranchants constitués par des diamants
C04B 35/52 - Produits céramiques mis en forme, caractérisés par leur composition; Compositions céramiques; Traitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de non oxydes à base de carbone, p.ex. graphite
A diamond sintered body which contains diamond particles, wherein: the content of the diamond particles is from 80% by volume to 99% by volume relative to the diamond sintered body; the average particle diameter of the diamond particles is from 0.1 μm to 50 μm; and the dislocation density of the diamond particles is not less than 8.1 × 1013m-2but less than 1.0 × 1016m-2.
C04B 35/52 - Produits céramiques mis en forme, caractérisés par leur composition; Compositions céramiques; Traitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de non oxydes à base de carbone, p.ex. graphite
π*σ*σ* of the intensity of π*peak derived from π bonding in hBN in the hexagonal boron nitride phase to the intensity of σ*π*σ*π*σ*σ* of the cBN particles at a depth position of 5 μm from the surface of the cutting edge along the normal direction of the surface of the cutting edge is between 0.001 and 0.1.
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
B23C 5/16 - Outils de fraisage caractérisés par des particularités physiques autres que la forme
C04B 35/5831 - Produits céramiques mis en forme, caractérisés par leur composition; Compositions céramiques; Traitement 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
π*σ*σ* that is the ratio of the intensity of a π*peak derived from the π bond of hBN in the hexagonal boron nitride phase with respect to the intensity of a σ*π*σ*π*σ*σ* of cBN particles located at a depth of 5 μm from the surface of the blade tip in the direction normal to the surface of the blade tip is 0.001-0.1.
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
B23C 5/16 - Outils de fraisage caractérisés par des particularités physiques autres que la forme
C04B 35/5831 - Produits céramiques mis en forme, caractérisés par leur composition; Compositions céramiques; Traitement 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
80.
CUTTING INSERT FOR ROTATIONAL CUTTING TOOL AND ROTATIONAL CUTTING TOOL
This cutting insert for a rotational cutting tool has a top surface, a bottom surface, and outer peripheral surfaces. The ridges between the top surface and the outer peripheral surfaces constitute a cutting edge. The cutting edge has a first line segment, a second line segment, a third line segment, a fourth line segment, a first round section, a second round section, a third round section, and a fourth round section. The straight line along the first line segment and the straight line along the third line segment form an acute angle. The straight line along the second line segment and the straight line along the fourth line segment form an acute angle. The straight line along the second line segment and the straight line along the third line segment form an obtuse angle. The straight line along the first line segment and the straight line along the fourth line segment form an obtuse angle. The radius of curvature of the third round section and the radius of curvature of the fourth round section are both greater than either of the radius of curvature of the first round section and the radius of curvature of the second round section. In a direction orthogonal to the bottom surface, the distance between the top surface and the bottom surface is equal to or less than the distance between the cutting edge and the bottom surface.
This cutting tool rotates around an axis, and comprises a body part, a cutting insert, and a plurality of anti-vibration members. The body part has an inner peripheral surface, and an outer peripheral surface being the opposite side to the inner peripheral surface. The cutting insert is attached to at least one of the inner peripheral surface and the outer peripheral surface. Each of the plurality of anti-vibration members is mounted on the body part. Each of the plurality of anti-vibration members includes a weight member made of a material with a specific gravity higher than that of a material constituting the body part.
A cubic boron nitride sintered body contains 70 vol% to less than 100 vol% of cubic boron nitride and a binder. The binder includes a first material and a second material. The first material is one or more first chemical species including at least one first metal element selected from the group consisting of tungsten, cobalt, and aluminum, and is a metal, an alloy, an intermetallic compound, a compound, or a solid solution. The second material: is one or more second chemical species containing at least one second metal element selected from the group consisting of titanium, zirconium, hafnium, vanadium, niobium, tantalum and chromium; is a solid solution derived from at least one substance selected from the group consisting of nitrides, carbides, and carbonitrides, and has 0.1 atom% to 10 atom% inclusive of aluminum in solid solution. The second material is particles having an average particle diameter of 1 μm or below.
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 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 29/16 - 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 nitrures
C22C 1/05 - Mélanges de poudre métallique et de poudre non métallique
C04B 35/5831 - Produits céramiques mis en forme, caractérisés par leur composition; Compositions céramiques; Traitement 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
This cubic boron nitride sintered compact comprises at least 70 vol% but less than 100 vol% of cubic boron nitride particles and a binder. The binder contains an aluminum compound and cobalt as a constituent element. The cubic boron nitride sintered compact has a first region in which the distance between adjacent cubic boron nitride particles is 0.1 to 10 nm. The at% of aluminum in the first region is 0.1 or greater according to first region analysis using an energy dispersive X-ray analyzer coupled with a transmission electron microscope.
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 29/16 - 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 nitrures
C22C 1/05 - Mélanges de poudre métallique et de poudre non métallique
84.
CUBIC BORON NITRIDE SINTERED BODY AND CUTTING TOOL INCLUDING SAME
A cubic boron nitride sintered body, according to the present invention, is provided with at least 70 vol% to less than 100 vol% of cubic boron nitride particles, and with a bonding material, wherein the bonding material includes as constituent elements: at least one kind of first metallic element selected from the group consisting of titanium, zirconium, vanadium, niobium, hafnium, tantalum, chromium, rhenium, molybdenum, and tungsten; cobalt; and aluminum, the cubic boron nitride sintered body has a first interface region comprising a region that is sandwiched between the interface between the cubic boron nitride particles and the bonding material, and a first virtual line that passes through a point separated 10 nm from the interface, on the bonding material side, and when the element which, from among the first metallic elements, is present in the highest concentration in the first interface region is considered to be a first element, the atomic concentration of the first element in the first interface region is higher than the atomic concentration of the first element in the bonding material outside of the first interface region.
B23B 27/14 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier
C22C 29/16 - 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 nitrures
C22C 1/05 - Mélanges de poudre métallique et de poudre non métallique
This diamond-coated tool comprises: a base material formed from a hard metal alloy; and a diamond layer disposed on the base material. When a cross section of the diamond layer along the normal of the surface is observed with a scanning electron microscope, an average void area ratio of the diamond layer is 0-0.2% in a region R, which is enclosed by an interface S1 between the base material and the diamond layer and a virtual surface Q that is located at the distance of 5 μm from the interface S1 toward the surface side of the diamond layer.
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
A diamond coated tool comprising a base material and a diamond layer provided on the base material, wherein the skewness Ssk of the diamond layer as per ISO 25178 is greater than 0.
This diffractive optical device includes at least one diffractive optical element. The diffractive optical element generates, from a laser beam incident thereon, primary light and secondary light having different diffraction orders, superimposes the primary light and the secondary light on the optical axis of the laser beam, and causes the primary light and the secondary light to interfere with each other. The diffractive optical element includes a first phase pattern and a second phase pattern. The first phase pattern converts the laser beam into a line beam. The second phase pattern diffracts the laser beam in a short-axis direction of the line beam to generate the primary light and the secondary light. On the optical axis of the laser beam, a first focal surface of the primary light and a second focal surface of the secondary light are located at different positions.
This tool comprises a tip portion that is formed from nano-polycrystalline diamond containing atoms belonging to group 13 or group 15 on the long-form periodic table. The tip portion has a surface which comes into contact with a workpiece. At least a portion of said surface contains a plurality of first recesses, and protrusions that are each formed by the contact between the edges of two adjacent first recesses.
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
B23C 5/10 - Fraise à queue, c. à d. comportant une queue incorporée
The rotary cutting tool according to the present disclosure can rotate around the axis and has a rake face and a flank face. The flank face is continuous with the rake face. A ridgeline between the rake face and the flank face forms a cutting edge. In a cross section perpendicular to the axis, the rake face is constituted by a plurality of lines.
A cutting tool according to the present disclosure comprises a rake face, a flank face and a cutting edge. The cutting edge is positioned between the rake face and the flank face. This cutting tool comprises: a base material that is formed of a cubic boron nitride sintered body; and an oxide layer that covers the base material and constitutes a part or the entirety of at least one of the rake face, the flank face and the cutting edge. The oxide layer contains at least one element that is selected from the group consisting of titanium, aluminum, zirconium and cobalt. The oxide layer has a thickness of 2 μm or less.
This tool comprises a tip portion that is formed from nano-polycrystalline diamond. The tip portion has a surface which comes into contact with a workpiece. At least a portion of said surface contains a plurality of first recesses, and protrusions that are each formed by the contact between the edges of two adjacent first recesses.
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
B23C 5/10 - Fraise à queue, c. à d. comportant une queue incorporée
B23P 15/34 - Fabrication d'objets déterminés par des opérations non couvertes par une seule autre sous-classe ou un groupe de la présente sous-classe d'outils de coupe de fraises
This tool comprises a tip portion that is formed from binderless cubic boron nitride. The tip portion has a surface which comes into contact with a workpiece. At least a portion of said surface contains a plurality of first recesses, and protrusions that are each formed by the contact between the edges of two adjacent first recesses.
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
B23C 5/10 - Fraise à queue, c. à d. comportant une queue incorporée
This tool comprises a tip. The tip has a surface. At least part of the surface includes: a plurality of protrusions; first recessed sections formed by the end of two adjacent protrusions abutting; and second recessed sections separate from the first recessed sections. The second recessed sections are formed so as to straddle the inside of a protrusion or two adjacent protrusions.
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
B23C 5/10 - Fraise à queue, c. à d. comportant une queue incorporée
B23P 15/34 - Fabrication d'objets déterminés par des opérations non couvertes par une seule autre sous-classe ou un groupe de la présente sous-classe d'outils de coupe de fraises
A cutting tool according to the present invention rotates about a rotational axis and is provided with a tip-end portion. The tip-end portion includes a partially spherical surface to be in contact with a workpiece. On the surface, a plurality of concavities which are spaced apart from each other are formed. An opening edge of each of the plurality of concavities forms a cutting blade.
A cutting tool according to the present disclosure comprises a rake face, a flank face, a substrate, and a first oxide film. The flank face is continuous with the rake face. The substrate has a first face opposing the rake face. The first oxide film has a second face in contact with the first face, and a third face on the opposite side to the second face. A ridgeline between the rake face and the flank face forms a cutting edge. The third face forms at least a part of the rake face.
This coolant supply mechanism is attached to a cutting insert. The cutting insert has a first bottom surface, a first top surface, and first side surfaces. The first top surface has a corner section that is positioned, in a plan view, at a corner of the first top surface and forms a cutting edge with the first side surface joined thereto and a central section that is positioned in a plan view next to a corner section opposite to the cutting edge. The central section of the first top surface is depressed toward the first bottom surface. The coolant supply mechanism is provided with a body part having: a second bottom surface that is in contact with the central section when attached to the cutting insert; a second top surface that is an opposite surface to the second bottom surface; and a second side surface that is joined to the second bottom surface and the second top surface. The second side surface has a first surface having: a first section that is in contact with a stepped surface, which lies between the corner section and the central section, when attached to the cutting insert; and a second section that is positioned further to the second top surface side than the first section. In the second section, a first coolant port to discharge coolant to the cutting edge is formed.
This cutting insert comprises a base member and cutting tips. In the thickness direction of the base member, the base member has a bottom surface and a top surface that is the opposite surface to the bottom surface. In a plan view seen along the thickness direction, the top surface has a polygonal shape consisting of a plurality of sides. The top surface is provided with a protruding portion that protrudes toward the opposite side to the bottom surface in the thickness direction. In the protruding portion, a through hole that passes through the base member in the thickness direction is formed. The protruding portion has side surfaces that are joined to the top surface. In a plan view seen along the thickness direction, the side surfaces comprise curve lines that are convex to the side opposite to the through hole. The curve lines include a plurality of vertices at positions where the distance to the plurality of sides is smallest. The cutting tips are brazed to the top surface and the side surfaces so as to annularly surround the protruding portion.
B23P 15/28 - Fabrication d'objets déterminés par des opérations non couvertes par une seule autre sous-classe ou un groupe de la présente sous-classe d'outils de coupe
B23B 27/18 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier à éléments tranchants fixés rigidement, p.ex. par brasage
An end mill according to the present invention has a plurality of flat surfaces on a tip section thereof. Angles of each of the plurality of flat sections are positioned on a virtual semispherical plane. The difference in distances between the distance from the angle of each of the plurality of flat surfaces to the center of the semispherical plane and the distance from a flat surface to the center of the semispherical plane along a line perpendicular to the flat surface is 3-10 µm, inclusive.