公开(公告)号：US20190160546A1

公开(公告)日：2019-05-30

申请号：US16092499

申请日：2017-03-03

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Shuhei Misumi ,  Haruyo Fukui ,  Shinya Imamura ,  Kazuhiro Hirose ,  Hiroki Takeshita

IPC: B23B27/14 ,  C23C14/06

Abstract: A surface-coated cutting tool includes a substrate and a coating film. The coating film includes an alternate layer. The alternate layer includes a first layer having a first composition and a second layer having a second composition. The alternate layer is formed by alternately stacking at least one first layer and at least one second layer. The first layer and the second layer each have a thickness not smaller than 2 nm and not greater than 100 nm. The first composition is expressed as TiaAlbSicN (0.25≤a≤0.45, 0.55≤b≤0.75, 0≤c≤0.1, a+b+c=1). The second composition is expressed as TidAleSifN (0.35≤d≤0.55, 0.45≤e≤0.65, 0≤f≤0.1, d+e+f=1). The first composition and the second composition satisfy a condition of 0.05≤d−a≤0.2 and 0.05≤b−e≤0.2.

公开(公告)号：US11167357B2

公开(公告)日：2021-11-09

申请号：US16092499

申请日：2017-03-03

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Shuhei Misumi ,  Haruyo Fukui ,  Shinya Imamura ,  Kazuhiro Hirose ,  Hiroki Takeshita

IPC: B23B27/14 ,  C23C14/06

Abstract: A surface-coated cutting tool includes a substrate and a coating film. The coating film includes an alternate layer. The alternate layer includes a first layer having a first composition and a second layer having a second composition. The alternate layer is formed by alternately stacking at least one first layer and at least one second layer. The first layer and the second layer each have a thickness not smaller than 2 nm and not greater than 100 nm. The first composition is expressed as TiaAlbSicN (0.25≤a≤0.45, 0.55≤b≤0.75, 0≤c≤0.1, a+b+c=1). The second composition is expressed as TidAleSifN (0.35≤d≤0.55, 0.45≤e≤0.65, 0≤f≤0.1, d+e+f=1). The first composition and the second composition satisfy a condition of 0.05≤d−a≤0.2 and 0.05≤b−e≤0.2.

公开(公告)号：US20180099335A1

公开(公告)日：2018-04-12

申请号：US15567149

申请日：2017-03-02

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Hiroki Takeshita ,  Shuhei Misumi ,  Haruyo Fukui ,  Shinya Imamura ,  Kazuhiro Hirose

IPC: B23B27/14 ,  C23C14/32 ,  C23C14/35 ,  C23C14/06

CPC classification number: B23B27/14 ,  B23B2228/105 ,  B23F21/00 ,  B23G5/06 ,  C23C14/0021 ,  C23C14/024 ,  C23C14/0641 ,  C23C14/0664 ,  C23C14/325 ,  C23C14/35 ,  C23C28/044 ,  C23C28/42 ,  C23C28/44 ,  C23C30/005

Abstract: A surface-coated cutting tool includes a base material and a coating film formed on a surface of the base material. The coating film includes a first alternating layer and a second alternating layer formed on the first alternating layer. The first alternating layer includes first and second layers. The second alternating layer includes third and fourth layers. One or a plurality of the first layers and one or a plurality of the second layers are layered alternately, and one or a plurality of the third layers and one or a plurality of the fourth layers are layered alternately.

公开(公告)号：USD894978S1

公开(公告)日：2020-09-01

申请号：US29679538

申请日：2019-02-07

Applicant: Sumitomo Electric Hardmetal Corp.

Designer： Shuhei Misumi ,  Minoru Yoshida ,  Yoshiji Sato

公开(公告)号：US11872636B2

公开(公告)日：2024-01-16

申请号：US15567149

申请日：2017-03-02

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Hiroki Takeshita ,  Shuhei Misumi ,  Haruyo Fukui ,  Shinya Imamura ,  Kazuhiro Hirose

IPC: B23B27/14 ,  C23C14/32 ,  C23C14/35 ,  C23C14/06 ,  C23C30/00 ,  C23C28/00 ,  C23C28/04 ,  C23C14/02 ,  C23C14/00 ,  B23F21/00 ,  B23G5/06

CPC classification number: B23B27/14 ,  C23C14/0021 ,  C23C14/024 ,  C23C14/0641 ,  C23C14/0664 ,  C23C14/325 ,  C23C14/35 ,  C23C28/044 ,  C23C28/42 ,  C23C28/44 ,  C23C30/005 ,  B23B2228/105 ,  B23F21/00 ,  B23G5/06

Abstract: A surface-coated cutting tool includes a base material and a coating film formed on a surface of the base material. The coating film includes a first alternating layer and a second alternating layer formed on the first alternating layer. The first alternating layer includes first and second layers. The second alternating layer includes third and fourth layers. One or a plurality of the first layers and one or a plurality of the second layers are layered alternately, and one or a plurality of the third layers and one or a plurality of the fourth layers are layered alternately.

公开(公告)号：US11229959B2

公开(公告)日：2022-01-25

申请号：US16473397

申请日：2018-08-07

Applicant: Sumitomo Electric Hardmetal Corp.

Inventor： Shuhei Misumi ,  Minoru Yoshida ,  Yoshiji Sato

IPC: B23B51/10 ,  B23B51/02

Abstract: A drill includes a body. The body includes a first cutting edge, and a second cutting edge apart from the first cutting edge to the back end side relative to the first cutting edge and formed in a recess traversing an outer peripheral portion of the body. In a side view of the body in a first direction in which a distance between a center axis of the body and a first outer end of the first cutting edge is seen the longest, a second outer end of the second cutting edge is located at the center axis side relative to the first outer end of the first cutting edge.