A cutting tool has an insert holder and a cutting insert releasably attached thereto. The cutting insert has an insert edge which includes two nose cutting edges and a convex corner cutting edge which extends therebetween. The two nose cutting edges form a nose angle. The insert edge also includes two mid-side edges which are located further from the corner cutting edge than the nose cutting edges. The two mid-side edges form a mid-side angle. The nose angle is less than the mid-side angle.
A cutting insert comprises a first end surface and a second end surface that are each formed in a substantially polygonal plate shape and each include a first long side and a second long side, and a first short side and a second short side that are located between the first long side and the second long side, the first end surface and the second end surface facing each other. The first end surface and the second end surface each have: a first cutting edge extending from the first long side to a first corner part that is located between the first long side and the first short side; and a second cutting edge extending from the second long side to a second corner part located between the second long side and the first short side. A radius of curvature R3 of a third corner part located on an opposite side of the first corner part with the first long side interposed therebetween is larger than a radius of curvature R1 of the first corner part.
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 slitter having a slitter body and a plurality of disc segments mounted to pockets formed in the slitter body. The disc segments each have a plurality of integrally formed teeth. The slitter has a smoothly curved peripheral surface against which the disc segments abut when mounted thereto.
A slitter having a slitter body and a plurality of disc segments mounted to pockets formed in the slitter body. The disc segments each have a plurality of integrally formed teeth. The slitter has a smoothly curved peripheral surface against which the disc segments abut when mounted thereto.
B26D 1/00 - Coupe d'une pièce caractérisée par la nature ou par le mouvement de l'élément coupantAppareils ou machines à cet effetÉléments coupants à cet effet
B26D 7/26 - Moyens de montage ou de réglage de l'outil de coupeMoyens de réglage de la course de l'outil de coupe
6.
DRAWBACK TOOL HOLDER AND SPRING COLLET AND NUT THEREFOR
A compact mechanical-type holder with clamping forces, precision and small runout comparative to a heat-shrink holder, and a collet designed for such holder. The collet (16) including an externally tapering collet tapered portion, and flexibility slits opening out to the collet tapered portion. The collet inner peripheral surface includes a recess (88) located between a first cylindrical clamping surface (76) and a second cylindrical clamping surface (82).
A fastening component that is fastened to an arbor so as to fix a cutter, being a rotary cutting tool, to the arbor, the fastening component including: a shaft part screwed into an internal thread of the arbor; an engagement hole formed in a shaft center of an end surface that is opposite to an end surface that is fastened to the arbor; a first flow path formed in a shaft center of the shaft part and opened in an end surface of the shaft part which is fastened to the arbor; a third flow path opened, in a position that is away from the shaft center, in an end that is opposite to an end that is fastened to the arbor; and a second flow path connecting the first flow path and the third flow path.
Provided is a cutting insert or the like that is capable of copy machining in a narrow space and is also highly economical. A cutting insert (3) has a first end portion (4) and a second end portion (5) formed in substantially the same shape. A cutting edge (10) of the first end portion (4) includes a curved corner cutting edge (13) and a pair of lateral cutting edges (11 and 12) disposed such that both ends (13L and 13R) of the corner cutting edge (13) are sandwiched therebetween. The pair of lateral cutting edges (11 and 12) are formed linearly and form an acute angle (Y). A side surface (9) has a corner flank (94) continuous with the corner cutting edge (13) and a flat surface (95) disposed further toward a bottom surface (8) than the corner flank (94) at a portion (93) abutting on the corner cutting edge (13).
A pressing member is configured to be inserted into a pocket of a tool body for pressing and fixing a cutting insert placed in a mounting part of the pocket onto a mounting surface of the mounting part. The pressing member includes a wedge part having a contacting surface that comes into contact with an inner surface of the pocket, and a pressing surface that is in contact with the cutting insert. The pressing surface is formed so as to gradually come close to the contacting surface in an insertion direction into the pocket. The pressing member also includes a pressure-receiving part that is pushed into the pocket in the insertion direction by a fastening component that is screwed into the pocket.
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
10.
CUTTING TOOL AND CUTTING INSERT HAVING A MOUNTING CUT-OUT THEREFOR
A cutting tool has a cutting insert removably secured to a holding portion of an insert holder. The cutting insert has opposing first and second end surfaces with an insert peripheral surface and a central axis extending therebetween, at least one cutting portion, and at least one mounting cut-out. Each cutting portion has a cutting edge and an adjacent relief surface facing in a first rotary direction about the central axis. Each mounting cut-out extends between the first and second end surfaces and has a first flank surface and an adjacent first upper slope surface. The first flank surface faces in a second rotary direction about the central axis and the first upper slope surface faces away from a median plane located midway between the first and second end surfaces. The first upper slope surface extends away from the median plane with increasing distance from the first 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
11.
CUTTING TOOL AND INDEXABLE CUTTING INSERT HAVING A MOUNTING CUT-OUT THEREFOR
A cutting tool has an indexable cutting insert removably secured to a holding portion of an insert holder. The cutting insert has opposing first and second end surfaces with an insert peripheral surface and a central axis extending therebetween, at least two cutting portions, and at least one mounting cut-out. Each cutting portion has a cutting edge formed by the intersection of rake and relief surfaces formed on the insert peripheral surface, one rake surface facing in a first rotary direction about the central axis and one rake surface facing in an opposite second rotary direction. Each mounting cut-out extends between the first and second end surfaces and has spaced apart first and second flank surfaces disposed on a cut-out peripheral surface which is separate and spaced apart from the insert peripheral surface. The first and second flank surfaces face in the first and second rotary directions, respectively.
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
12.
CUTTING TOOL AND INDEXABLE CUTTING INSERT HAVING A MOUNTING CUT-OUT THEREFOR
A cutting tool has an indexable cutting insert removably secured to a holding portion of an insert holder. The cutting insert has opposing first and second end surfaces with an insert peripheral surface and a central axis extending therebetween, at least two cutting portions, and at least one mounting cut-out. Each cutting portion has a cutting edge formed by the intersection of rake and relief surfaces formed on the insert peripheral surface, one rake surface facing in a first rotary direction about the central axis and one rake surface facing in an opposite second rotary direction. Each mounting cut-out extends between the first and second end surfaces and has spaced apart first and second flank surfaces disposed on a cut-out peripheral surface which is separate and spaced apart from the insert peripheral surface. The first and second flank surfaces face in the first and second rotary directions, respectively.
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 fixing member that presses and fixes a cutting insert disposed on an insert mounting part of a tool body, the fixing member including: a fixing member body that has a pressing part for pressing the cutting insert; a fitting protrusion that is provided so as to protrude from a bottom part of the fixing member body, the fitting protrusion being fitted in a fitting hole formed in the tool body; and a coolant introduction flow path, a coolant discharge flow path and a coolant reservoir that guide a coolant delivered from a coolant branch flow path of the tool body to a discharge port formed in a leading end of the fixing member body so as to be discharged therefrom, wherein an inlet port of the coolant introduction flow path which communicates with an outlet port of the coolant branch flow path of the tool body is formed in an outer peripheral surface of the fitting protrusion.
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
The present invention provides a fixing member that presses and fixes a cutting insert disposed on an insert mounting part of a tool body, the fixing member including: a fixing member body that has a pressing part for pressing the cutting insert; a fitting protrusion that is provided so as to protrude from a bottom part of the fixing member body, the fitting protrusion being fitted in a fitting hole formed in the tool body; and an engagement recess formed in a peripheral surface of the fitting protrusion, the engagement recess being engaged with a leading end of a fastening screw which is screwed into an internal thread that communicates with the fitting hole of the tool body, wherein the fitting protrusion is drawn into the fitting hole by the fastening screw that engages with the engagement recess, whereby the pressing part presses and fixes the cutting insert.
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
Provided are a fixing member and a cutting tool capable of pressing and fixing a cutting insert to a tool body in a stable state without defects such as wear and deformation.
Provided are a fixing member and a cutting tool capable of pressing and fixing a cutting insert to a tool body in a stable state without defects such as wear and deformation.
A fixing member pressing and fixing a cutting insert disposed on an insert mounting part of a tool body includes a fixing member body configured to be fastened to a fixing member mounting part of the tool body and a pressing portion that is provided to the fixing member body and configured to press the cutting insert when the fixing member body is fastened to the tool body, wherein in the pressing portion, a bulging portion having an outer shape, in which a cross-sectional view in a direction orthogonal to a width direction of the fixing member body is curved in an arc shape, is formed along the width direction of the fixing member body.
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 coated cutting tool including a substrate and a coating layer formed on the substrate, wherein the coating layer has a first alternately laminated structure in which two or more A layers and two or more B layers are alternately formed, the A layer contains (AlaCrbTi1-a-b)N, the B layer contains (AlcTi1-c-dBd)N, the average thickness of the first alternately laminated structure is 0.50 μm or more and 10.00 μm or less, and the average thickness per layer of each of the A layer and the B layer in the first alternately laminated structure is 2 nm or more and 300 nm or less.
A thread milling cutter (1) includes an integrally formed thread milling tool (10) having a rotational axis (S), a shank portion (24) and a forward cutting portion (34). The cutting portion (34) has at least five insert pockets (42) recessed therein with at least one insert pocket (42) being devoid of an associated support protrusion (46), allowing different insert placements for different thread pitches.
A thread milling cutter (1) includes an integrally formed thread milling tool (10) having a rotational axis (S), a shank portion (24) and a forward cutting portion (34). The cutting portion (34) has at least five insert pockets (42) recessed therein with at least one insert pocket (42) being devoid of an associated support protrusion (46), allowing different insert placements for different thread pitches.
A two-way indexable V-shaped cutting insert having first and second rake surfaces located in a front insert surface thereof. First and second relief surfaces respectively connect the first and second rake surfaces to first and second converging insert abutment surfaces, respectively. A first cutting edge is located at an intersection of the first rake surface and the first relief surface. A second cutting edge is located at an intersection of the second rake surface and the second relief surface. A first relief angle is formed between the first relief surface and the first converging insert abutment surface. A second relief angle is formed between the second relief surface and the second converging insert abutment surface. The first and second relief angles are obtuse. In a cutting tool, the two-way indexable V -shaped cutting insert is releasably secured in a tool holder by means of a fastening member.
A miniature internal boring tool including two to four shank flat surfaces and two to four integrally formed teeth. The outermost points of cutting edges of the teeth define an outer cutting diameter (OD) fulfilling the condition: 2 mm
A two-way indexable V-shaped cutting insert having first and second rake surfaces located in a front insert surface thereof. First and second relief surfaces respectively connect the first and second rake surfaces to first and second converging insert abutment surfaces, respectively. A first cutting edge is located at an intersection of the first rake surface and the first relief surface. A second cutting edge is located at an intersection of the second rake surface and the second relief surface. A first relief angle is formed between the first relief surface and the first converging insert abutment surface. A second relief angle is formed between the second relief surface and the second converging insert abutment surface. The first and second relief angles are obtuse. In a cutting tool, the two-way indexable V-shaped cutting insert is releasably secured in a tool holder by means of a fastening member.
A miniature internal boring tool including two to four shank flat surfaces and two to four integrally formed teeth. The outermost points of cutting edges of the teeth define an outer cutting diameter (OD) fulfilling the condition: 2mm < OD < 9mm.
A tool holder includes a tool shank and a tool head connected to the tool shank. The tool head has a rear surface. An insert seat or a blade pocket is partially formed on both the tool head and the tool shank, and extends rearwardly of the tool head's rear surface. Adjacent to at least a portion of a shank side surface there is a reinforcement portion connecting the shank side surface and the tool head.
B23B 27/08 - Outils de coupe dont la partie principale est en forme de lame ou de disque
B23B 27/10 - Outils de coupe avec une disposition particulière pour le refroidissement
B23B 29/20 - Agencements particuliers des porte-outils pour placer la queue du porte-outil dans les ouvertures de la tourelle
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
24.
CUBIC BORON NITRIDE SINTERED BODY AND COATED CUBIC BORON NITRIDE SINTERED BODY
A cubic boron nitride sintered body including cubic boron nitride and a binder phase, wherein content ratios of the cubic boron nitride and the binder phase are each in a specific range, the binder phase contains a Ti compound phase, an Al compound phase, and a W element-containing phase, content ratios of the Ti compound phase, the Al compound phase, and the W element-containing phase are each in a specific range, the W element-containing phase contains at least one selected from the group consisting of W2B and WB, and I2/I1, which is a ratio between an X-ray diffraction peak intensity of a (111) plane of the cubic boron nitride, I1, and a sum of X-ray diffraction peak intensities of a (211) plane of W2B and a (110) plane of WB in the binder phase, I2, is in a specific range.
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 35/58 - 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
A rotary milling tool has a tool holder and a milling head releasably attached thereto. The milling head has a head through recess opening out to the head forward and rearward surfaces. The recess includes a plurality of radially extending tooth-receiving lobes. The tool holder has a projection which includes a plurality of radially extending teeth. When assembled the teeth are located in the tooth-receiving lobes and provide centering and torque transfer capabilities.
A rotary milling tool has a tool holder and a milling head releasably attached thereto. The milling head has a head through recess opening out to the head forward and rearward surfaces. The recess includes a plurality of radially extending tooth-receiving lobes. The tool holder has a projection which includes a plurality of radially extending teeth. When assembled the teeth are located in the tooth-receiving lobes and provide centering and torque transfer capabilities.
A cutting head (22) has two radially extending cutting arms and at least one fastening recess having an opening located at least partially on one of cutting arms. Each cutting arm has a dovetail arm rear abutment surface. A tool holder (24) has two circumferentially spaced apart driving members. The tool holder has a pocket with two radially extending arm receiving receptacle. Each receptacle has a dovetail receptacle rear abutment surface. The tool holder has at least one through hole located in one of the driving members. When assembled, a fastening member (26) is disposed in the through bore and engages with the fastening recess to urge each cutting arms towards a respective driving member.
A cBN sintered body including cBN and a binder phase, wherein a content ratio of the cBN is 80 to 94 volume %, a content ratio of the binder phase is 6 to 20 volume %, the binder phase contains a metal phase, a V compound, and an Al compound, the metal phase contains one or more selected from the group consisting of Ni, and a Ni-containing alloy and solid solution, the Ni-containing alloy and solid solution each contain Ni and one or more elements selected from the group consisting of Al, Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W, and Co, the V compound contains one or more selected from the group consisting of VN, VCN, and VC, the Al compound contains one or more selected from the group consisting of Al2O3, AlN, and AlB2, a maximum peak position 2θ of a 200 plane of the metal phase is less than 51.60°, and I1/(I1+I2) is 0.40 to 0.80, where I1 denotes an X-ray diffraction peak intensity of a 220 plane of the V compound, and I2 denotes an X-ray diffraction peak intensity of a 200 plane of the metal phase.
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
29.
CUTTING HEAD WITH FASTENING RECESS AND CUTTING ARMS HAVING DOVETAIL REAR ABUTMENT SURFACE, TOOL HOLDER AND ROTARY CUTTING TOOL
A cutting head has two radially extending cutting arms and at least one fastening recess having an opening located at least partially on one of cutting arms. Each cutting arm has a dovetail arm rear abutment surface. A tool holder has a two circumferentially spaced apart driving members. The tool holder has a pocket with two radially extending arm receiving receptacle. Each receptacle has a dovetail receptacle rear abutment surface. The tool holder has at least one through hole located in one of the driving members. When assembled, a fastening member is disposed in the through bore and engages with the fastening recess to urge each cutting arms towards a respective driving member.
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 used for turning operations is releasably secured to a tool holder. The cutting insert includes top and bottom insert surfaces, each surface including two pairs of insert wedge surfaces. The tool holder includes an insert pocket having a pocket top surface and a pocket bottom surface. When the cutting tool is assembled, only one of the two pairs of insert wedge surfaces of the insert top surface engages the pocket top surface, and only one of the two pairs of insert wedge surfaces of the insert bottom surface engage the pocket bottom surface.
B23B 27/08 - Outils de coupe dont la partie principale est en forme de lame ou de disque
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 29/04 - Porte-outils pour un seul outil de coupe
A cutting head has driven surfaces and includes a head coupling pin that protrudes rearwardly from a head rear surface. The head coupling pin includes a pin recess recessed in the pin peripheral surface. A tool holder, elongated along a holder longitudinal axis, has driving members and a holder coupling hole recessed in a holder base surface. A fastening member is disposed in a holder through bore that extends from the holder base surface to a holder peripheral surface. The holder through bore is located entirely on one side of a longitudinal plane containing the holder longitudinal axis. When a cutting tool which includes the cutting head and tool holder is in a fastened position, the head coupling pin is removably retained within the holder coupling hole upon engagement with the fastening member.
A cutting head (22) has driven surfaces and includes a head coupling pin that protrudes rearwardly from a head rear surface. The head coupling pin includes a pin recess recessed in the pin peripheral surface. A tool holder (24), elongated along a holder longitudinal axis (D), has driving members and a holder coupling hole (96) recessed in a holder base surface. A fastening member (26) is disposed in a holder through bore (102) that extends from the holder base surface to a holder peripheral surface. The holder through bore (102) is located entirely on one side of a longitudinal plane containing the holder longitudinal axis (D). When a cutting tool (20) which includes the cutting head (22) and tool holder (24) is in a fastened position, the head coupling pin is removably retained within the holder coupling hole (96) upon engagement with the fastening member (26).
A cutting head (20) rotatable about a head axis (AH) has a pair of first cutting arms (26) circumferentially alternating with a pair of second cutting arms (28). Each first cutting arm (26) has a radially extending first cutting edge (32), which includes a first radially outer (36) and a first radially inner (38) cutting-edge portion. The first radially inner cutting-edge portion (36) defines an imaginary first circle having a first diameter, and has a first inner cutting profile. Each second cutting arm (28) has a radially extending second cutting edge (40). The second cutting edge (40) defines an imaginary second circle having a second diameter, and has a second cutting profile. The first diameter is greater than the second diameter, and the first inner cutting profile is identical to the second cutting profile. A rotary cutting tool has an elongated tool shank and the cutting head (20) of the type described above disposed at a front end of the tool shank.
A cutting head rotatable about a head axis has a pair of first cutting arms circumferentially alternating with a pair of second cutting arms. Each first cutting arm has a radially extending first cutting edge, which includes a first radially outer and a first radially inner cutting-edge portion. The first radially inner cutting-edge portion defines an imaginary first circle having a first diameter, and has a first inner cutting profile. Each second cutting arm has a radially extending second cutting edge. The second cutting edge defines an imaginary second circle having a second diameter, and has a second cutting profile. The first diameter is greater than the second diameter, and the first inner cutting profile is identical to the second cutting profile. A rotary cutting tool has an elongated tool shank and the cutting head of the type described above disposed at a front end of the tool shank.
The invention provides a cutting insert, a body, and a cutting tool that can limit thickness while allowing a total of four cutting edges to be used by switching. A cutting insert 30 to be mounted on a body 20 of a cutting tool 10 includes: a first cutting face 411 hexagonal in shape by being made up of one end face 110 of a pair of end faces 110 and 120 opposed to each other; a pair of first cutting edges 311 and 312 formed along a pair of sides 111 and 114 opposed to each other among sides marking off the first cutting face 411; second cutting faces 421 and 422 trapezoidal in shape by being made up of a pair of side faces 210 and 220 opposed to each other; and second cutting edges 321 and 322 each formed along one 210 or 220 of sides marking off each of the second cutting faces 421 and 422.
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
Provided is a structure for improving accuracy in attaching a cutting tool to a body and making it possible to increase the number of blades while the cutting tool is mounted on the body. A cutting insert 1 includes: an upper surface 10 that has a shape with a lengthwise direction LD and a widthwise direction SD; a lower surface that is located opposite to the upper surface 10; a peripheral side surface 30 that is formed so as to connect the upper surface 10 and the lower surface; cutting edges 51 and 52 that are respectively formed on an intersecting ridge line of the upper surface 10 and the peripheral side surface 30, and on an intersecting ridge line of the lower surface and the peripheral side surface 30, and each have a curved ridge line that extends in a lengthwise direction thereof; and a through hole 60 that penetrates from the upper surface 10 to the lower surface. End surfaces 31 and 32 located in the lengthwise direction LD of the upper surface 10 and the lower surface, of the peripheral side surface 30, are respectively inclined with respect to the upper surface 10 and the lower surface, and are parallel to each other. A reference surface 33 that is located opposite to the cutting edges 51 and 52, of the peripheral side surface 30, is a flat surface that is orthogonal to the upper surface 10 and the lower surface.
A cutting tool with sufficient stiffness of a body is provided.
A cutting tool with sufficient stiffness of a body is provided.
A cutting tool 10 includes a body 100 in which a discharge groove 120 for guiding and discharging chips is formed, and a cutting insert 200 fastened and fixed on a distal end side of the body 100. The cutting insert 200 includes a first surface 210 through which a through-hole 230 is opened, and a major cutting edge 231 formed so as to extend straight at an end part of the first surface 210. A protrusion portion 130 protruding so as to cover part of the first surface 210 of the cutting insert 200 from outside is formed at the body 100. A clearance hole 170 is formed so as to extend from a surface of the body 100 opposite the cutting insert 200 toward a corner cutting edge 242 when viewed from the distal end side along a central axis AX1.
B23B 27/00 - Outils pour machines à tourner ou à aléserOutils de type similaire en généralAccessoires de ces outils
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
Cutting tools for use with Swiss-type machines intended for
the processing of small parts and the processing of screws,
including turning tools, grooving tools, and interchangeable
cutting tool holders for them.
Cutting tools, namely, turning tools, grooving tools,
parting tools, blades and cutting inserts therefor for use
with power operated machines; adapters and adapter holders
for use with cutting tools.
49.
CUTTING HEAD HAVING ROTATIONALLY ASYMMETRIC COUPLING PIN, TOOL SHANK AND CUTTING TOOL
A cutting tool includes a cutting head and a tool shank, each having an axial abutment surface. One of the two includes a coupling pin, while the other includes a pin receptacle and a clamping through bore that opens out to the pin receptacle. The coupling pin has an engagement groove and the pin receptacle has an engagement ridge. The coupling pin is received into the pin receptacle. The cutting head and tool shank are releasably attached together by a fastening member that passes through the clamping through bore and acts on the coupling pin so that the engagement groove abuts the engagement ridge and the axial abutment surfaces on each part abut each other.
B23B 29/04 - Porte-outils pour un seul outil de coupe
B23B 27/10 - Outils de coupe avec une disposition particulière pour le refroidissement
B23B 31/107 - Caractérisés par les dispositifs de maintien ou de serrage ou par leurs moyens d'action directe le maintien étant assuré par des éléments d'arrêt agissant latéralement, p. ex. doigts, écrous, clavettesCaractérisés par les dispositifs de maintien ou de serrage ou par leurs moyens d'action directe le maintien étant assuré par éléments mobiles, p. ex. des billes
50.
CUTTING HEAD HAVING ROTATIONALLY ASYMMETRIC COUPLING PIN, TOOL SHANK AND CUTTING TOOL
A cutting tool (20) includes a cutting head (22) and a tool shank (24), each having an axial abutment surface (66,76a). One of the two includes a coupling pin (38), while the other includes a pin receptacle (80) and a clamping through bore (96) that opens out to the pin receptacle. The coupling pin (38) has an engagement groove (52) and the pin receptacle has an engagement ridge(90). The coupling pin is received into the pin receptacle. The cutting head and tool shank are releasably attached together by a fastening member that passes through the clamping through bore and acts on the coupling pin so that the engagement groove abuts the engagement ridge and the axial abutment surfaces on each part abut each other.
B23B 29/04 - Porte-outils pour un seul outil de coupe
B23B 31/107 - Caractérisés par les dispositifs de maintien ou de serrage ou par leurs moyens d'action directe le maintien étant assuré par des éléments d'arrêt agissant latéralement, p. ex. doigts, écrous, clavettesCaractérisés par les dispositifs de maintien ou de serrage ou par leurs moyens d'action directe le maintien étant assuré par éléments mobiles, p. ex. des billes
A cutting insert, a holder, and a cutting tool with which the cutting insert can be easily and stably mounted on the holder and a fabrication target object can be excellently fabricated are provided. A cutting tool 100 that is used to fabricate a fabrication target object W by cutting includes a holder 50 and a cutting insert 10 that is mounted on a distal end of the holder 50. The holder 50 includes an insert pocket 53 into which the cutting insert 10 is fitted and a stopper portion 61 that elastically locks the cutting insert 10 to be fitted into the insert pocket 53. The cutting insert 10 includes a cutting portion 11 including a cutting edge 13, a fitting portion 12 that is fitted into the insert pocket 53, and a lock portion 21 that is formed at the fitting portion 12 and is to be locked to the stopper portion 61 of the holder 50.
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 able to sufficiently supply coolant toward a cutting edge of a cutting insert during a cutting process involving grooving a workpiece face includes a first flow path through which coolant is supplied toward a body leading end side, a first jetting port, a second flow path branching at a branch point along the first flow path, a second jetting port, and a guide member having a guide surface distanced from the second jetting port and forming a space for coolant to flow to the cutting edge from the second jetting port. In the first flow path, a substantially straight upstream-of-branch flow path on further toward a base end side than the branch point is at least twice as long as a downstream-of-branch flow path from the first jetting port to the branch point. The second flow path inclines at a 30° to 85° angle to the upstream-of-branch flow path.
A body of a cutting tool and a cutting insert which can further improve support stiffness of the cutting insert are provided.
A body of a cutting tool and a cutting insert which can further improve support stiffness of the cutting insert are provided.
A body of a cutting tool includes an insert seat provided on a leading end part of the body, a screw hole with which a fastening screw is screwed, a deep seat portion provided at a deep part in the insert seat in an axial direction of the screw hole, a receiving portion receiving a contact portion of the cutting insert, a wall portion having a base-end side rotation suppression portion which stops rotation of the cutting insert, and a shallow seat portion, the depth of a seat thereof being shallower than a part with the receiving portion, wherein the base-end side rotation suppression portion is positioned not to overlap the deep seat portion when viewed along a screw-hole axis.
B23B 27/00 - Outils pour machines à tourner ou à aléserOutils de type similaire en généralAccessoires de ces outils
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.
MODULAR CUTTING TOOL HAVING INTEGRAL CENTRAL PIN AND TORQUE TRANSFER MECHANISM
A tool body having a longitudinal body axis has a central body recess recessed in a rear body surface thereof. The recess includes an inner recess surface, and a body recess peripheral surface extending between the inner recess surface and the rear body surface. An integral central pin extends rearwardly from the inner recess surface, and having an integral pin length measured along the longitudinal body axis from the inner recess surface to a rear pin surface thereof. In a circumferential direction about the longitudinal body axis, the body recess peripheral surface alternatingly increases and decreases in distance from the longitudinal body axis, thereby forming a plurality of angularly spaced apart longitudinal axis crests. A tool holder has a protrusion with complementary surfaces to engage the tool body. A fastening member, such as a lock nut, secures the tool body to the tool holder to form a cutting tool.
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
Cutting tools, namely, turning tools, grooving tools, parting tools, blades and cutting inserts therefor for use with power operated machines; adapters and adapter holders for use with power-operated machine tools for cutting
(1) Cutting tools for use with Swiss-type machines intended for the processing of small parts and the processing of screws, including turning tools, grooving tools, and interchangeable cutting tool holders for them.
(1) Cutting tools, namely, turning tools, grooving tools, parting tools, blades and cutting inserts therefor for use with power operated machines; adapters and adapter holders for use with cutting tools.
Cutting tools for use with Swiss-type machines intended for the processing of small parts and the processing of screws, including turning tools, grooving tools, and interchangeable cutting tool holders for them.
Provided is a cutting tool which, while suppressing costs, can effectively decrease vibrations that occur during machining, thereby improving machining precision. This cutting tool 100, which has a cutting edge 1 for machining a workpiece on the leading end thereof, comprises a tool body 11 having a hollow part 21 and a weight part 22 accommodated in the hollow part 21, wherein the weight part 22 is integrally formed in the shape of a cantilever, with the leading end side being connected to the tool body 11 and the rear end side being the free end, and a connecting position Pa of the weight part 22 with the tool body 11 is more on the leading end side of the tool body 11 than a rear end position Pb of the cutting edge 11.
B23Q 11/00 - Accessoires montés sur les machines-outils pour maintenir les outils ou les organes de la machine dans de bonnes conditions de travail ou pour refroidir les pièces travailléesDispositifs de sécurité spécialement combinés aux machines-outils, disposés dans ces machines ou spécialement conçus pour être utilisés en relation avec ces machines
B23B 27/00 - Outils pour machines à tourner ou à aléserOutils de type similaire en généralAccessoires de ces outils
B23C 9/00 - Parties constitutives ou accessoires dans la mesure où ils sont spécialement adaptés aux machines ou aux outils de fraisage
Provided is a cutting tool capable of improving machining accuracy by suppressing the effects of the temperature of a viscous fluid to effectively reduce vibrations that occur during machining. A cutting tool 100 having, at a tip end thereof, a cutting edge 1 for machining a machined object, is provided with a tool main body 11 having a hollow portion 21 and a weight portion 22 accommodated in the hollow portion 21, wherein: the weight portion 22 is formed integrally in a cantilevered shape in which a tip end side is provided connected to the tool main body 11 and a rear end side is a free end; a gap 27 between an inner wall surface 21a of the hollow portion 21 of the tool main body 11 and an outer peripheral surface 22a of the weight portion 22 is filled with a viscous fluid 28; and a coolant flow passage 31 for supplying a coolant CL to the cutting edge 1 is formed in the tool main body 11, along the gap 27, so as to envelop an outer peripheral side of the gap 27.
B23Q 11/00 - Accessoires montés sur les machines-outils pour maintenir les outils ou les organes de la machine dans de bonnes conditions de travail ou pour refroidir les pièces travailléesDispositifs de sécurité spécialement combinés aux machines-outils, disposés dans ces machines ou spécialement conçus pour être utilisés en relation avec ces machines
B23B 27/00 - Outils pour machines à tourner ou à aléserOutils de type similaire en généralAccessoires de ces outils
B23B 27/10 - Outils de coupe avec une disposition particulière pour le refroidissement
B23C 5/28 - Caractéristiques se rapportant à la lubrification ou au refroidissement
B23C 9/00 - Parties constitutives ou accessoires dans la mesure où ils sont spécialement adaptés aux machines ou aux outils de fraisage
B23Q 11/10 - Dispositions pour le refroidissement ou la lubrification des outils ou des pièces travaillées
Provided is a cutting tool that, while suppressing risk of breakage and the like, can effectively reduce vibration during processing and thereby improve processing precision. A cutting tool 100 that has, at the tip, a cutting blade 1 for processing an object to be processed comprises a tool body 11 that has a hollow part 21 and a spindle 22 that is accommodated in the hollow part 21. The spindle 22 is integrally formed as a cantilevered body that is connected to the tool body 11 at the tip and has a free end at the rear. The spindle 22 has a spindle body 25 and a neck part 26 that narrows between the spindle body 25 and a part 23 that is connected to the tool body 11. The neck part 26 is formed such that a part 26a that is in the middle of the spindle body 25 and the connection part 23 curves inward as seen in cross-section along the axial direction.
B23Q 11/00 - Accessoires montés sur les machines-outils pour maintenir les outils ou les organes de la machine dans de bonnes conditions de travail ou pour refroidir les pièces travailléesDispositifs de sécurité spécialement combinés aux machines-outils, disposés dans ces machines ou spécialement conçus pour être utilisés en relation avec ces machines
B23B 27/00 - Outils pour machines à tourner ou à aléserOutils de type similaire en généralAccessoires de ces outils
B23C 9/00 - Parties constitutives ou accessoires dans la mesure où ils sont spécialement adaptés aux machines ou aux outils de fraisage
Provided are: a compact cutting insert which enables standardization of a tool body; and a rotating tool which uses the cutting insert. A cutting insert (10) has: a top surface (20); a bottom surface (40) located opposite to the top surface (20); and a peripheral lateral surface (30) that connects the top surface (20) and the bottom surface (40). A ridgeline (11) at which the top surface (20) and the peripheral lateral surface (30) intersect each other includes at least one cutting edge (14). The peripheral lateral surface (30) includes a flank face (31) adjacent to the at least one cutting edge (14), a thickness-reduced face (33) adjacent to the flank face (31) from the bottom surface (40) side, and a restraining face (32) adjacent to the thickness-reduced face (33) from the bottom surface side. In a cross-section cut along a plane including a center axis (O), an inclination angle (β) formed between the restraining surface (32) and a virtual surface (V) that is parallel to the center axis (O) passing through the center of the top surface (20) and the center of the bottom surface (40) and that passes through the at least one cutting edge (14) is greater than an inclination angle (γ) formed between the virtual surface (V) and the thickness-reduced face (33).
A cutting insert includes opposing insert first and second side surfaces. The insert first side surface includes a first mounting arrangement. The first mounting arrangement includes a) at least one first side abutment surface facing away from the insert second side surface, b) a first stopper abutment surface oriented transversely to the at least one first side abutment surface and c) two opposite-facing first wedge abutment surfaces oriented transversely to the at least one first side abutment surface and converging forwardly. An insert holder has a corresponding pocket mounting arrangement for engagement with the first mounting arrangement.
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 blade in which coolant can be efficiently supplied to a machining place with a reduced pressure loss is provided. In a blade 100 in which a cutting insert 13 is attached to an insert attachment portion 12 provided at a longitudinal end part of a blade body 11 formed in a long plate shape, the blade body 11 includes a supply inlet 51 opened at one side surface, a lower discharge port 53 and an upper discharge port 54 that are opened at an end face nearby the insert attachment portion 12, a lower coolant supply path 55 connecting the supply inlet 51 to the lower discharge port 53, and an upper coolant supply path 56 connecting the supply inlet 51 to the upper discharge port 54, and the lower coolant supply path 55 and the upper coolant supply path 56 each have a curved shape in a side view.
A cutting insert (122, 22) includes opposing insert first and second side surfaces (28). The insert first side surface (28) includes a first mounting arrangement. The first mounting arrangement includes a) at least one first side abutment surface (56) facing away from the insert second side surface (30), b) a first stopper abutment surface (58) oriented transversely to the at least one first side abutment surface (56) and c) two opposite-facing first wedge abutment surfaces (60) oriented transversely to the at least one first side abutment surface (56) and converging forwardly. An insert holder (24) has a corresponding pocket mounting arrangement for engagement with the first mounting arrangement.
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
B23B 29/04 - Porte-outils pour un seul outil de coupe
A coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate, wherein the coating layer comprises a lower layer, an intermediate layer, and an upper layer in this order from the substrate side to the surface side of the coating layer, the lower layer comprises one or two or more specific Ti compound layers, the intermediate layer comprises an α-Al2O3 layer, the upper layer comprises one or two or more specific Ti compound layers, at least one of the Ti compound layers in the upper layer is a TiCN layer, the average thickness of the upper layer is 1.00 μm or more and 6.50 μm or less, and the upper layer satisfies the conditions represented by the formula (i): 25≤RSA1<70 and the formula (ii): 25≤RSA2<70.
B23B 27/14 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier
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
To achieve more efficient cooling and lubrication by making a coolant more reliably and directly reach a machining point even in machining such as inner diameter grooving of a small diameter or grooving of a narrow groove width with which it is difficult for a coolant to reach a machining point.
To achieve more efficient cooling and lubrication by making a coolant more reliably and directly reach a machining point even in machining such as inner diameter grooving of a small diameter or grooving of a narrow groove width with which it is difficult for a coolant to reach a machining point.
An indexable cutting tool that adopts a structure in which a cutting insert including cutting edges is removably mounted, by a set screw, on an insert mounting seat at an axial direction leading end part of a tool body includes: a coolant flow passage for coolant supply, the coolant flow passage being provided to the tool body; an opening part that is provided to the insert mounting seat; and a recessed part that forms a flow passage in which at least part of the coolant discharged from the opening part flows, the recessed part being provided to the cutting insert.
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
It is possible to reduce shoulder parts from being damaged while suppressing an increase in cutting resistance or abrasion of edges at a time of machining.
It is possible to reduce shoulder parts from being damaged while suppressing an increase in cutting resistance or abrasion of edges at a time of machining.
A drilling tool for drilling machining includes: at least one major cutting edge; second cutting edges that are provided on an outer side of a tool radial direction of the major cutting edge; third cutting edges that are provided on the outer side of the tool radial direction of the second cutting edges; a first honing portion that is formed at the major cutting edge; second honing portions that are formed at the second cutting edges; and third honing portions that are formed at the third cutting edges. Honing sizes of the third honing portions are larger than a honing size of the first honing portion.
A cutting tool includes a replaceable cutting head including a forward cutting portion and a rearward mounting portion and a head through hole extending therethrough. The mounting portion includes a male coupling member. The male coupling member includes a conically shaped head abutment surface. The cutting tool includes a female coupling member including a conically shaped forward holder abutment surface and an internal thread. The cutting tool includes a fastening member having an external thread. When the cutting tool is in a locked position, the male coupling member is removably retained in the female coupling member by the fastening member located in the head through hole, the fastening member external thread and the holder internal thread being threadingly engaged with each other. The head abutment surface abuts the forward holder abutment surface thereby forming a Morse taper coupling between the male and female coupling members.
B23C 5/10 - Fraise à queue, c.-à-d. comportant une queue incorporée
B23B 31/11 - Caractérisés par les dispositifs de maintien ou de serrage ou par leurs moyens d'action directe le maintien étant assuré par liaison filetée
A cutting tool includes a replaceable cutting head including a forward cutting portion and a rearward mounting portion and a head through hole extending therethrough. The mounting portion includes a male coupling member. The male coupling member includes a conically shaped head abutment surface. The cutting tool includes a female coupling member including a conically shaped forward holder abutment surface and an internal thread. The cutting tool includes a fastening member having an external thread. When the cutting tool is in a locked position, the male coupling member is removably retained in the female coupling member by the fastening member located in the head through hole, the fastening member external thread and the holder internal thread being threadingly engaged with each other. The head abutment surface abuts the forward holder abutment surface thereby forming a Morse taper coupling between the male and female coupling members.
B23B 31/117 - Caractérisés par les dispositifs de maintien ou de serrage ou par leurs moyens d'action directe le maintien étant assurée uniquement par friction, p. ex. en utilisant des ressorts, des manchons élastiques, des cônes
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
The present disclosure can realize further prevention of a mounting mistake caused when a cutting insert is mounted on an insert seat is implemented by voluntarily improving a structure around the insert seat in particular. An insert mounting part has a shape including a bottom surface, a constraint surface that comes into contact with at least a part of a constraint target surface formed as a surface of a peripheral side surface of the cutting insert inclining with respect to an upper surface or a lower surface, an evacuation part that allows evacuation from the constraint surface hedging a cutting edge of the cutting insert, a first protrusion area that extends hiding a part of the upper surface or the lower surface of the cutting insert, a relief part that is formed at a part that a corner part of the cutting insert approaches so as to hedge the corner part, and a second protrusion area that extends from an upper side of the relief part so as to cover the part of the upper surface or the lower surface of the cutting insert mounted on the insert mounting part.
A turning tool (1) that does not easily interfere with other tools and can supply a sufficient amount of coolant is provided. The turning tool (1) includes: a cutting insert (10) which is mirror-image symmetric with respect to a first and second symmetric surfaces (M1, M2); and a tool body (2) which has a first discharge port (5) to supply coolant to a first cutting edge (21E) of the cutting insert (10) from a first rake surface (21R) side. The first discharge port (5) is disposed between a second flat surface (32) and a first reference surface (Vxz) which is parallel with the second flat surface (32) and includes an edge line of the first cutting edge (21E).
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
89.
ROTARY CUTTING TOOL HAVING A CENTRAL COOLANT PASSAGE NON-CIRCULAR IN CROSS-SECTION
A rotary cutting tool (20) rotatable about a tool axis in a direction of rotation having a front cutting portion (24) and a rear coupling portion (26). The front cutting portion (24) has a front outer peripheral surface (28) with a plurality of N circumferentially spaced apart cut-outs, each cut-out having an operative cutting edge associated therewith. A central coolant passage (34, 48) extends along the tool axis from a rear end of the rear coupling portion (26) to the front cutting portion (24). A first plane (Pl) perpendicular to the tool axis intersects the central coolant passage (34, 48) and the N operative cutting edges. In a cross-section taken in the first plane (Pl), the central coolant passage (34, 48) has a non-circular shape with N radially outer coolant regions (52). At least one coolant duct (58) extends transversely from each radially outer coolant region (52) to intersect with and open out at a corresponding one of the N cut-outs at a coolant exit port (60).
A head replaceable cutting tool having a structure that can limit a machining cost when a clearance portion is formed in a portion at which a head is attached and detached, and also limit deformation of a shank is provided. The head replaceable cutting tool includes: a projection portion or a hole portion for attachment and detachment disposed in a head; a shank to which the head is attachable; a hole portion, to which the projection portion is removably attachable along a central axis, or a projection portion disposed in an end portion of the shank; a fastening member that presses the projection portion toward an inner circumference surface of the hole portion; and a fastened portion disposed in the shank to fasten the fastening member. The hole portion has a transverse cross-sectional shape that is a substantially circular shape having a curvature radius R1, and the projection portion has a transverse cross-sectional shape including a contact portion at which an outer circumference surface of the projection portion is in contact with the inner circumference surface of the hole portion and a clearance portion that is formed in a part of the outer circumference surface so as to deviate radially inward from a virtual circle corresponding to the inner circumference surface and does not come into contact with the inner circumference 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
B23B 31/00 - Mandrins de serrageMandrins extensiblesLeurs adaptations à la commande à distance
91.
ROTARY CUTTING TOOL HAVING A CENTRAL COOLANT PASSAGE NON-CIRCULAR IN CROSS-SECTION
A rotary cutting tool rotatable about a tool axis in a direction of rotation having a front cutting portion and a rear coupling portion. The front cutting portion has a front outer peripheral surface with a plurality of N circumferentially spaced apart cut-outs, each cut-out having an operative cutting edge associated therewith. A central coolant passage extends along the tool axis from a rear end of the rear coupling portion to the front cutting portion. A first plane perpendicular to the tool axis intersects the central coolant passage and the N operative cutting edges. In a cross-section taken in the first plane, the central coolant passage has a non-circular shape with N radially outer coolant regions. At least one coolant duct extends transversely from each radially outer coolant region to intersect with and open out at a corresponding one of the N cut-outs at a coolant exit port.
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
To provide a cutting insert that readily fragmentizes chips, and that has excellent durability.
To provide a cutting insert that readily fragmentizes chips, and that has excellent durability.
At least a cutting part of a cutting insert is formed of a sintered compact. The sintered compact includes a chip breaker that is a recessed portion in which a partial region of a cutting part upper surface is depressed downward. The chip breaker includes a downward inclined surface, an upward inclined surface, a jutting portion that juts out along a first axial line that passes through a distant end of a cutting edge, and a stepped surface that adjoins the jutting portion in a Y axis direction orthogonal to the first axial line. An upper end of the jutting portion is formed at a height of an upper stage. The stepped surface is formed at a height of an intermediate stage at a part closest to the first axial line.
A cutting insert capable of performing groove machining while efficiently fragmenting chip is provided. A cutting insert 10 includes a front cutting edge 111, a pair of side cutting edges 113, a pair of corner cutting edges 112 each connecting the front cutting edge and a corresponding one of the side cutting edges, corner rake surfaces 122 extending from the corner cutting edges 112, and a protrusion part 150 protruding from the corner rake surfaces 122 and provided with a flat boss surface 160 at a leading end. Corner wall surfaces 180 extending from the boss surface 160 toward the corner rake surfaces 122 are formed at the protrusion part 150. At least a part of the corner wall surfaces 180 has a tilt angle of 40° or larger relative to the boss surface 160.
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 two-cutting-edge parting insert (100) including a first cutting portion (100, 110), a second cutting portion (112) and an elongated body portion (114) connecting the first and second cutting portions. The elongated body portion (114) has a body width (BW) measurable parallel to a lateral axis and a body length (BL) measurable parallel to an elongation axis. The body width is smaller than both cut widths of the cutting edges of the first and second body portions and fulfills the condition:: 0.55mm < BW < 0.95 mm; and the body length fulfills the condition: 2mm < BL < 14 mm.
A two-cutting-edge parting insert including a first cutting portion, a second cutting portion and an elongated body portion connecting the first and second cutting portions. The elongated body portion has a body width (BW) measurable parallel to a lateral axis and a body length (BL) measurable parallel to an elongation axis. The body width is smaller than both cut widths of the cutting edges of the first and second body portions and fulfills the condition: 0.65 mm≤BW≤0.95 mm; and the body length fulfills the condition: 2 mm≤BL≤14 mm.
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 double sided V-shaped cutting insert includes insert front and back surfaces and a peripheral surface extending therebetween. The peripheral surface has a forward surface, a first planar converging surface, and a first rake surface extending between the forward surface and the first converging surface. A second planar converging surface forms a convergence angle φ, 30°≤φ≤45° with the first converging surface. A second rake surface extends between the forward surface and the second converging surface. In a view perpendicular to the insert front surface, the cutting insert exhibits mirror symmetry about a bisector plane passing between the first and second rake surfaces. The first and second rake surfaces each face away from the bisector plane. The first rake surface tends towards the bisector plane more than the first converging surface, and the second rake surface tends towards the bisector plane more than the second converging surface.
A tip that is capable of preventing chip clogging during machining, and a cutting tool equipped with this tip, are provided. The tip 30 includes a first surface 310 that is a portion making contact with a body 20 of the cutting tool 10 when the tip is attached to the body 20, a second surface 320 located on the opposite side from the first surface 310, a leading end part 330 connecting the first surface 310 and the second surface 320 and provided with a cutting edge 331, and a trailing end part 340 located on the opposite side from the leading end part 330. The second surface 320 is formed with a recessed part 321 receding toward the first surface 310 in a portion closer to the trailing end part 340.
A cubic boron nitride sintered body including cubic boron nitride and a binder phase, wherein: a content ratio of the cubic boron nitride is 85 volume % or more and 95 volume % or less, a content ratio of the binder phase is 5 volume % or more and 15 volume % or less, the binder phase contains Co3W3C, W2Co21B6, and an Al compound, and IB/IA is 0.02 or more and 0.15 or less, IC/IA is 0.02 or more and 1.00 or less, and IC≥ID, where IA denotes an X-ray diffraction peak intensity of a (111) plane of the cubic boron nitride, IB denotes an X-ray diffraction peak intensity of a (400) plane of the Co3W3C, IC denotes an X-ray diffraction peak intensity of a (420) plane of the W2Co21B6, and ID denotes an X-ray diffraction peak intensity of a (001) plane of WC.
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
B22F 1/142 - Traitement thermique ou thermomécanique
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
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 29/16 - 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
An insert holder (24, 36) has spaced apart upper and lower jaws (38), wherein the upper jaw (38) is resiliently rotatable with respect to the lower jaw (40) around an angled pivot axis. The insert holder (24, 36) includes a forwardly located insert mounting portion (32, 36) which includes a forwardly protruding clamping finger (56) and a forwardly protruding support rib (58). The clamping recess (42) is defined partially by an elongated recess hinge surface (52) formed on an angled hinge portion (50). The recess hinge surface (52) includes a first hinge end (54A) and a second hinge end (54B), longitudinally spaced apart from one another. The second hinge end (54B) is located forward of the first hinge end (54A).
