公开(公告)号：US11370033B2

公开(公告)日：2022-06-28

申请号：US16957956

申请日：2018-10-30

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Haruyo Fukui ,  Makoto Setoyama ,  Keizo Tanaka ,  Kouhei Yoshimura

IPC: B23B27/14 ,  C23C14/06 ,  C23C28/04 ,  C23C28/00 ,  C23C14/02 ,  C23C14/32 ,  B23C5/16

Abstract: 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.

公开(公告)号：US11534836B2

公开(公告)日：2022-12-27

申请号：US16955866

申请日：2019-01-30

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Kouhei Yoshimura ,  Haruyo Fukui ,  Makoto Setoyama ,  Keizo Tanaka

IPC: B23B27/14 ,  B23B51/00 ,  B23C5/16 ,  C23C14/06

Abstract: 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-y1Alx1Tay1Cα1Nβ1, the second composite nitride layer includes Ti1-x2-y2Alx2Tay2Cα2Nβ2.

公开(公告)号：US10987738B2

公开(公告)日：2021-04-27

申请号：US16308996

申请日：2017-02-17

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Hideaki Kanaoka ,  Shinya Imamura ,  Anongsack Paseuth ,  Yuta Koyoshi ,  Satoshi Ono ,  Kouhei Yoshimura

IPC: B23B27/14 ,  B23F21/00 ,  B23G5/06 ,  B23B51/00 ,  B23C5/16 ,  B23D77/00 ,  C23C16/30

Abstract: A surface-coated cutting tool includes a substrate and a coating that is disposed on the substrate and formed so as to cover at least a portion of a flank face, in which the coating includes an inner layer and an outer layer formed on the inner layer, the inner layer is formed of at least one layer and includes an aluminum oxide layer as a layer in contact with the outer layer, the outer layer has a multilayer structure that includes three or more layers stacked on top of one another, and each of the layers that constitute the multilayer structure contains titanium.

公开(公告)号：US20200180037A1

公开(公告)日：2020-06-11

申请号：US16318296

申请日：2017-04-25

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Hideaki Kanaoka ,  Shinya Imamura ,  Anongsack Paseuth ,  Satoshi Ono ,  Kouhei Yoshimura

IPC: B23B27/14 ,  B23C5/16 ,  C23C16/02 ,  C23C16/40 ,  C23C16/56

Abstract: A surface-coated cutting tool has a rake face and a flank face, and includes a base material and a coating formed on the base material. The base material has a cutting edge face connecting the rake face to the flank face. The coating includes an aluminum oxide layer containing a plurality of aluminum oxide crystal grains. The aluminum oxide layer includes: a first region made up of a region A on the rake face and a region B on the flank face; a second region on the rake face except for the region A; and a third region on the flank face except for the region B. The aluminum oxide layer satisfies a relation: b−a>0.5, where a is an average value of TC(006) in the first region in texture coefficient TC(hkl), and b is an average value of TC(006) in the second or third region in texture coefficient TC(hkl).

公开(公告)号：US11020805B2

公开(公告)日：2021-06-01

申请号：US16328229

申请日：2017-05-25

Applicant: Sumitomo Electric Hardmetal Corp.

Inventor： Shinya Imamura ,  Hideaki Kanaoka ,  Anongsack Paseuth ,  Satoshi Ono ,  Kouhei Yoshimura

IPC: B23B27/14 ,  B23B27/16 ,  B23F21/00 ,  B23G5/06 ,  B23D77/00 ,  B24B3/34 ,  B23B51/00 ,  B23C5/16 ,  B23C5/06

Abstract: A cutting tool includes a base material. The base material is a cemented carbide or a cermet. A surface of the base material includes a rake face, a flank face, and a cutting edge face connecting the rake face to the flank face. The base material has an oxygen concentration of less than or equal to 1 at. % at a depth position of 0.4 μm from the cutting edge face.

公开(公告)号：US10994338B2

公开(公告)日：2021-05-04

申请号：US16318296

申请日：2017-04-25

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Hideaki Kanaoka ,  Shinya Imamura ,  Anongsack Paseuth ,  Satoshi Ono ,  Kouhei Yoshimura

IPC: B23B27/14 ,  B23C5/16 ,  C23C16/02 ,  C23C16/40 ,  C23C16/56

Abstract: A surface-coated cutting tool has a rake face and a flank face, and includes a base material and a coating formed on the base material. The base material has a cutting edge face connecting the rake face to the flank face. The coating includes an aluminum oxide layer containing a plurality of aluminum oxide crystal grains. The aluminum oxide layer includes: a first region made up of a region A on the rake face and a region B on the flank face; a second region on the rake face except for the region A; and a third region on the flank face except for the region B. The aluminum oxide layer satisfies a relation: b−a>0.5, where a is an average value of TC(006) in the first region in texture coefficient TC(hkl), and b is an average value of TC(006) in the second or third region in texture coefficient TC(hkl).

公开(公告)号：US11298748B2

公开(公告)日：2022-04-12

申请号：US16958183

申请日：2018-10-16

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Haruyo Fukui ,  Makoto Setoyama ,  Keizo Tanaka ,  Kouhei Yoshimura

IPC: B23B27/14 ,  C23C14/06 ,  C23C14/16 ,  C23C28/00 ,  C23C14/02 ,  B23C5/16

Abstract: 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 aluminum, 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 aluminum being larger than 0.40 and not more than 0.70.

公开(公告)号：US10654181B2

公开(公告)日：2020-05-19

申请号：US15740927

申请日：2017-04-25

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Kouhei Yoshimura ,  Shinya Imamura ,  Hideaki Kanaoka ,  Anongsack Paseuth ,  Satoshi Ono

IPC: B32B9/00 ,  B26B9/00 ,  B32B15/04 ,  C23C16/40 ,  C23C16/02 ,  C23C16/455 ,  C23C16/34 ,  C23C16/36

Abstract: A surface-coated cutting tool includes a base material and a coating formed on the base material. The coating includes an α-Al2O3 layer. The α-Al2O3 layer contains a plurality of α-Al2O3 crystal grains and chlorine, and has a TC(006) of more than 5 in texture coefficient TC(hkl). The α-Al2O3 layer includes lower and upper layers, the lower layer is located closer to the base material than the upper layer is, and the upper layer is located opposite to the base material across the lower layer, in a thickness direction of the α-Al2O3 layer. The lower layer has a thickness of 1.0 μm. The upper layer has a thickness of 0.5 μm or more. The chlorine in the lower layer has a concentration distribution in which an atomic concentration CCl of the chlorine decreases in a direction away from the base material, in a thickness direction of the lower layer.

公开(公告)号：US20190232380A1

公开(公告)日：2019-08-01

申请号：US16308996

申请日：2017-02-17

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Hideaki Kanaoka ,  Shinya Imamura ,  Anongsack Paseuth ,  Yuta Koyoshi ,  Satoshi Ono ,  Kouhei Yoshimura

IPC: B23B27/14 ,  B23C5/16 ,  B23G5/06 ,  C23C16/30

CPC classification number: B23B27/14 ,  B23B51/00 ,  B23B2222/28 ,  B23B2228/10 ,  B23C5/16 ,  B23D77/00 ,  B23F21/00 ,  B23G5/06 ,  C23C16/30

Abstract: A surface-coated cutting tool includes a substrate and a coating that is disposed on the substrate and formed so as to cover at least a portion of a flank face, in which the coating includes an inner layer and an outer layer formed on the inner layer, the inner layer is formed of at least one layer and includes an aluminum oxide layer as a layer in contact with the outer layer, the outer layer has a multilayer structure that includes three or more layers stacked on top of one another, and each of the layers that constitute the multilayer structure contains titanium.

公开(公告)号：US11014169B2

公开(公告)日：2021-05-25

申请号：US16328225

申请日：2017-04-25

Applicant: Sumitomo Electric Hardmetal Corp.

Inventor： Hideaki Kanaoka ,  Shinya Imamura ,  Anongsack Paseuth ,  Satoshi Ono ,  Kouhei Yoshimura

IPC: B23B27/14 ,  B23C5/16 ,  B23B51/00 ,  C22C29/08 ,  C23C16/40 ,  C22C29/04 ,  C23C16/34 ,  C23C16/36 ,  C23C16/56

Abstract: A surface-coated cutting tool having a rake face and a flank face includes a base material and a coating formed on the base material. The base material is a cemented carbide or a cermet. The coating includes an aluminum oxide layer containing a plurality of aluminum oxide crystal grains. The aluminum oxide layer includes: a first region made up of a region A on the rake face and a region B on the flank face; a second region on the rake face except for the region A; and a third region on the flank face except for the region B. The aluminum oxide layer satisfies a relation: b−a>0.5, where a is an average value of TC(110) in the first region in texture coefficient TC(hkl), and b is an average value of TC(110) in the second or third region in texture coefficient TC(hkl).