Patents Assigned to Sumitomo Electric Hardmetal Corp.
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Patent number: 10875101Abstract: A surface-coated cutting tool includes a substrate and a coating film that coats the substrate, wherein the coating film includes a hard coating layer constituted of a domain region and a matrix region, the domain region is a region having a plurality of portions divided and distributed in the matrix region, the domain region has a structure in which a first layer composed of a first Alx1Ti(1-x1) compound and a second layer composed of a second Alx2Ti(1-x2) compound are layered on each other, the matrix region has a structure in which a third layer composed of a third Alx3Ti(1-x3) compound and a fourth layer composed of a fourth Alx4Ti(1-x4) compound are layered on each other, the first AlTi compound and the second AlTi compound have a cubic crystal structure, the third AlTi compound and the fourth AlTi compound have a cubic crystal structure.Type: GrantFiled: December 27, 2018Date of Patent: December 29, 2020Assignee: Sumitomo Electric Hardmetal Corp.Inventors: Anongsack Paseuth, Yasuki Kido, Susumu Okuno, Shinya Imamura
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Publication number: 20200391305Abstract: A rotary cutting tool includes a main body and a shank. The main body has a tip end. The shank is continuous with the main body on the side opposite to the tip end. The main body is provided with a first cutting edge having a positive twist angle, and a second cutting edge having a negative twist angle and separated from the first cutting edge. Each of the first cutting edge and the second cutting edge extends continuously from the tip end to the shank.Type: ApplicationFiled: September 7, 2017Publication date: December 17, 2020Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Nozomi TSUKIHARA, Yutaka KOBAYASHI, Minoru YOSHIDA
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Publication number: 20200376566Abstract: A surface-coated cutting tool includes a substrate and a coating film that coats the substrate, wherein the coating film includes a hard coating layer constituted of a domain region and a matrix region, the domain region is a region having a plurality of portions divided and distributed in the matrix region, the domain region has a structure in which a first layer composed of a first Alx1Ti(1-x1) compound and a second layer composed of a second Alx2Ti(1-x2) compound are layered on each other, the matrix region has a structure in which a third layer composed of a third Alx3Ti(1-x3) compound and a fourth layer composed of a fourth Alx4Ti(1-x4) compound are layered on each other, the first AlTi compound and the third AlTi compound have a hexagonal crystal structure, the second AlTi compound and the fourth AlTi compound have a cubic crystal structure.Type: ApplicationFiled: December 27, 2018Publication date: December 3, 2020Applicant: Sumitomo Electric Hardmetal Corp.Inventors: Anongsack PASEUTH, Yasuki KIDO, Susumu OKUNO, Shinya IMAMURA
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Publication number: 20200370173Abstract: A surface-coated cutting tool includes a substrate and a coating film that coats the substrate, wherein the coating film includes a hard coating layer constituted of a domain region and a matrix region, the domain region is a region having a plurality of portions divided and distributed in the matrix region, the domain region has a structure in which a first layer composed of a first Alx1Ti(1-x1) compound and a second layer composed of a second Alx2Ti(1-x2) compound are layered on each other, the matrix region has a structure in which a third layer composed of a third Alx3Ti(1-x3) compound and a fourth layer composed of a fourth Alx4Ti(1-x4) compound are layered on each other.Type: ApplicationFiled: December 27, 2018Publication date: November 26, 2020Applicant: Sumitomo Electric Hardmetal Corp.Inventors: Yasuki KIDO, Anongsack PASEUTH, Susumu OKUNO, Shinya IMAMURA
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Publication number: 20200368822Abstract: A surface coated cutting tool comprises a base material and a coating layer that coats the base material, the coating layer including an alternate layer composed of a first unit layer and a second unit layer alternately stacked, the first unit layer being composed of a nitride containing aluminum and zirconium, in the first unit layer, when the total number of metal atoms constituting the first unit layer is represented as 1, a ratio thereto of the number of atoms of the zirconium being not less than 0.65 and not more than 0.95, the second unit layer being composed of a nitride containing titanium and silicon, in the second unit layer, when the total number of metal atoms constituting the second unit layer is represented as 1, a ratio thereto of the number of atoms of the silicon being larger than 0 and not more than 0.20.Type: ApplicationFiled: October 30, 2018Publication date: November 26, 2020Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Haruyo FUKUI, Makoto SETOYAMA, Keizo TANAKA, Kouhei YOSHIMURA
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Patent number: 10844469Abstract: A method for manufacturing a member according to one embodiment of the present disclosure is a method for manufacturing a member having a substrate and a sprayed coating formed on a surface of the substrate. The method includes: supplying an oil into a recessed portion of the sprayed coating, a kinematic viscosity of the oil at 40° C. being more than or equal to 3 mm2/s and less than or equal to 43 mm2/s; and dry-cutting, using a cutting tool, a surface of the sprayed coating with the recessed portion supplied with the oil. A supplied amount of the oil is more than or equal to 0.1 weight % and less than or equal to 2.7 weight % with respect to an apparent weight of the sprayed coating.Type: GrantFiled: December 19, 2017Date of Patent: November 24, 2020Assignee: Sumitomo Electric Hardmetal Corp.Inventors: Kazushi Takahama, Satoru Kukino
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Publication number: 20200361002Abstract: A surface-coated cutting tool includes a base material and a coating covering the base material. The base material includes a rake face and a flank face. The coating includes a TiCN layer. The TiCN layer has a (422) orientation in a region d1 in the rake face. The TiCN layer has a (311) orientation in a region d2 in the flank face.Type: ApplicationFiled: December 14, 2018Publication date: November 19, 2020Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Satoshi Ono, Shinya Imamura, Susumu Okuno, Anongsack Paseuth
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Publication number: 20200361005Abstract: A cutting tool includes a substrate and a diamond layer that covers the substrate. The diamond layer includes a rake face and a flank continuous to the rake face. A ridgeline between the rake face and the flank forms a cutting edge. The substrate includes a top surface opposed to the rake face. When viewed in a direction perpendicular to the top surface, the rake face includes a plurality of protrusions. In a cross-section perpendicular to a direction of extension of the cutting edge, each of the plurality of protrusions includes an inclined portion and a curvature portion continuous to the inclined portion. In the cross-section, a height of the inclined portion in the direction perpendicular to the top surface increases as a distance from the cutting edge increases.Type: ApplicationFiled: May 15, 2018Publication date: November 19, 2020Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Nozomi TSUKIHARA, Katsuo KAZAHAYA, Yutaka KOBAYASHI
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Publication number: 20200340106Abstract: A surface-coated cutting tool includes a substrate and a coating film that coats the substrate, wherein the coating film includes a hard coating layer constituted of a domain region and a matrix region, the domain region is a region having a plurality of portions divided and distributed in the matrix region, the domain region has a structure in which a first layer composed of a first Alx1Ti(1-x1) compound and a second layer composed of a second Alx2Ti(1-x2) compound are layered on each other, the matrix region has a structure in which a third layer composed of a third Alx3Ti(1-x3) compound and a fourth layer composed of a fourth Alx4Ti(1-x4) compound are layered on each other, the first AlTi compound, the second AlTi compound and the fourth AlTi compound have a cubic crystal structure, the third AlTi compound has a hexagonal crystal structure.Type: ApplicationFiled: December 27, 2018Publication date: October 29, 2020Applicant: Sumitomo Electric Hardmetal Corp.Inventors: Anongsack PASEUTH, Yasuki KIDO, Susumu OKUNO, Shinya IMAMURA
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Publication number: 20200338646Abstract: A surface-coated cutting tool includes a substrate and a coating film that coats the substrate, wherein the coating film includes a hard coating layer constituted of a domain region and a matrix region, the domain region is a region having a plurality of portions divided and distributed in the matrix region, the domain region has a structure in which a first layer composed of a first Alx1Ti(1?x1) compound and a second layer composed of a second Alx2Ti(1?x2) compound are layered on each other, the matrix region has a structure in which a third layer composed of a third Alx3Ti(1?x3) compound and a fourth layer composed of a fourth Alx4Ti(1?x4) compound are layered on each other, the first AlTi compound and the second AlTi compound have a cubic crystal structure, the third AlTi compound and the fourth AlTi compound have a cubic crystal structure.Type: ApplicationFiled: December 27, 2018Publication date: October 29, 2020Applicant: Sumitomo Electric Hardmetal Corp.Inventors: Anongsack PASEUTH, Yasuki KIDO, Susumu OKUNO, Shinya IMAMURA
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Publication number: 20200338645Abstract: A cutting insert has a surface that relates to cutting, the surface comprising cBN sintered material, ceramics, or cermet. The cutting insert comprises: a rake face; a flank face; a chamfer located between the rake face and the flank face; and a cutting edge formed by a ridgeline at which the flank face and the chamfer intersect. The cutting edge comprises a cutting edge portion for push cutting, a cutting edge portion for pull cutting, and a connecting cutting edge portion located between the cutting edge portion for push cutting and the cutting edge portion for pull cutting. In the chamfer located along the cutting edge, the chamfer located along the connecting cutting edge portion has a minimum width.Type: ApplicationFiled: August 2, 2018Publication date: October 29, 2020Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Hironari MOROGUCHI, Satoru KUKINO
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Patent number: 10814401Abstract: A vibration cutting insert includes a top surface having a rake face and a breaker face, a first side surface, a second side surface, and a bottom surface. In a cross section which includes a bisector of an angle formed between a first ridgeline and a second ridgeline when viewed in a direction from the top surface toward the bottom surface, and which is parallel to the direction from the top surface toward the bottom surface, a rake angle formed between the rake face and a plane parallel to the bottom surface has a positive angle. The angle formed between the first ridgeline and the second ridgeline is an acute angle. The rake face constitutes a cylindrical surface. The breaker face constitutes a flat surface.Type: GrantFiled: May 17, 2017Date of Patent: October 27, 2020Assignees: Sumitomo Electric Hardmetal Corp., Citizen Machinery Co., Ltd., Citizen Watch Co., Ltd.Inventors: Tomoyuki Fukuyama, Kazuhiko Sannomiya
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Publication number: 20200331071Abstract: A surface-coated cutting tool includes: a substrate including a rake face and a flank face; a first coating film that coats the rake face; and a second coating film that coats the flank face, wherein the first coating film includes a first composite nitride layer at a region d1 on the rake face, the second coating film includes a second composite nitride layer at a region d2 on the flank face, the first composite nitride layer includes Ti1-x1-y1Alx1Tay1C?1N?1, the second composite nitride layer includes Ti1-x2-y2Alx2Tay2C?2N?2.Type: ApplicationFiled: January 30, 2019Publication date: October 22, 2020Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Kouhei YOSHIMURA, Haruyo FUKUI, Makoto SETOYAMA, Keizo TANAKA
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Patent number: 10807173Abstract: A second distance is longer than a first distance and a value obtained by dividing the third distance by the fourth distance is more than or equal to 0.5 and less than or equal to 0.8 when it is assumed that the first distance represents a distance between the cutting edge and the mounting surface in a direction perpendicular to the rake face, the second distance represents a distance between the mounting surface and a boundary portion between the rising portion and the flat portion in the direction perpendicular to the rake face, the third distance represents a distance between the boundary portion and a tip of the cutting edge in a direction parallel to the rake face, and the fourth distance represents a distance between the second discharging opening portion and the tip of the cutting edge in the direction parallel to the rake face.Type: GrantFiled: May 15, 2018Date of Patent: October 20, 2020Assignee: Sumitomo Electric Hardmetal Corp.Inventors: Keiji Kinoshita, Kouki Matsubara, Yusuke Koike
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Publication number: 20200316691Abstract: A turning tool includes: a holder portion; and a cutting edge portion fixed to the holder portion, wherein the cutting edge portion is composed of a synthetic single-crystal diamond, and the cutting edge portion has a nose curvature having a curvature radius of more than or equal to 0.1 mm and less than or equal to 1.2 mm, and the nose curvature satisfies at least one of a condition that a direction of a line of intersection between the rake face and a bisecting cross section of a vertex angle of the nose curvature is within ±10° relative to a <110> direction of the synthetic single-crystal diamond, and a condition that the direction of the line of intersection between the rake face and the bisecting cross section of the vertex angle of the nose curvature is within ±10° relative to a <100> direction of the synthetic single-crystal diamond.Type: ApplicationFiled: August 2, 2019Publication date: October 8, 2020Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Akihiko UEDA, Takuya NOHARA, Yutaka KOBAYASHI
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Publication number: 20200298317Abstract: A surface-coated cutting tool includes a base material and a coating covering the base material. The base material includes a rake face and a flank face. The coating includes a TiCN layer. The TiCN layer has a (311) orientation in a region d1 in the rake face. The TiCN layer has a (422) orientation in a region d2 in the flank face.Type: ApplicationFiled: December 14, 2018Publication date: September 24, 2020Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Satoshi Ono, Shinya Imamura, Susumu Okuno, Anongsack Paseuth
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Publication number: 20200291504Abstract: A cemented carbide includes second hard phase grains, wherein the second hard phase grains includes a core portion, and in a case where a total of 70 unit regions that are each constituted of a square having each side of 8?m are provided by successively arranging 7 unit regions in a longitudinal direction and 10 unit regions in a lateral direction in an electron microscope image of any cross section of the cemented carbide captured at a magnification of 1500×, where the total number of core portions in the total of 70 unit regions is calculated, and where a percentage of the number of core portions in each of the unit regions with respect to the total number of core portions is calculated, the number of unit regions in which the percentage is less than 0.43% or more than 2.43% is less than or equal to 10.Type: ApplicationFiled: August 8, 2019Publication date: September 17, 2020Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Kosuke FUKAE, Yasuki KIDO, Masami WATANABE, Shinya IMAMURA
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Patent number: 10774442Abstract: In a single-crystal diamond material, a concentration of non-substitutional nitrogen atoms is not more than 200 ppm, a concentration of substitutional nitrogen atoms is lower than the concentration of the non-substitutional nitrogen atoms, and the single-crystal diamond material has a crystal growth main surface having an off angle of not more than 20°. A perforated tool includes a single-crystal diamond die, wherein in the single-crystal diamond die, a concentration of non-substitutional nitrogen atoms is not more than 200 ppm, a concentration of substitutional nitrogen atoms is lower than the concentration of the non-substitutional nitrogen atoms, and the single-crystal diamond die has a low-index plane represented by a Miller index of not less than ?5 and not more than 5 in an integer, a perpendicular line of the low-index plane having an off angle of not more than 20° relative to an orientation of a hole for wire drawing.Type: GrantFiled: March 20, 2019Date of Patent: September 15, 2020Assignees: Sumitomo Electric Industries, Ltd., Sumitomo Electric Hardmetal Corp.Inventors: Yoshiki Nishibayashi, Natsuo Tatsumi, Hitoshi Sumiya, Akihiko Ueda, Yutaka Kobayashi
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Patent number: 10766077Abstract: The holder has a first surface and a second surface. The head includes a cutting edge portion and a shank portion. The holder is provided with a first hole and a second hole communicating with the first hole, the first hole extending in a third direction inclined by a second angle relative to a second direction extending from the second surface toward the first surface when viewed in a direction parallel to the axis line. The shank portion has a flat surface portion, and is provided inside the second hole. The fastening portion is provided inside the first hole, and is in contact with the flat surface portion. In a plane perpendicular to the axis line, a third angle between the second direction and a fourth direction perpendicular to the flat surface portion is larger than the second angle. The third angle is less than 90°.Type: GrantFiled: February 27, 2017Date of Patent: September 8, 2020Assignee: Sumitomo Electric Hardmetal Corp.Inventors: Yoshikatsu Mori, Kouki Matsubara, Ryusei Hamada, Masaaki Jindai, Kazuhiko Kashima, Yasuhiro Kajiwara
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Patent number: D894978Type: GrantFiled: February 7, 2019Date of Patent: September 1, 2020Assignee: Sumitomo Electric Hardmetal Corp.Inventors: Shuhei Misumi, Minoru Yoshida, Yoshiji Sato