Invention Grant
- Patent Title: Surface-coated cutting tool and method for manufacturing same
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Application No.: US16494125Application Date: 2019-03-08
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Publication No.: US10994341B2Publication Date: 2021-05-04
- Inventor: Hiroki Takeshita , Makoto Setoyama , Haruyo Fukui
- Applicant: Sumitomo Electric Hardmetal Corp.
- Applicant Address: JP Itami
- Assignee: Sumitomo Electric Hardmetal Corp.
- Current Assignee: Sumitomo Electric Hardmetal Corp.
- Current Assignee Address: JP Itami
- Agency: Baker Botts L.L.P.
- Agent Michael A. Sartori
- Priority: JPJP2018-114267 20180615
- International Application: PCT/JP2019/009316 WO 20190308
- International Announcement: WO2019/239654 WO 20191219
- Main IPC: B23B27/14
- IPC: B23B27/14 ; C23C14/06 ; C23C28/04 ; B23C5/20 ; C23C14/32 ; C23C14/35

Abstract:
A surface-coated cutting tool includes a base material and a coating film provided on a surface of the base material, wherein the coating film includes a first alternating layer provided on the base material and a second alternating layer provided on the first alternating layer, the first alternating layer includes A and B layers, the second alternating layer includes C and D layers, each of one or plurality of the A layers is composed of a nitride or carbonitride of AlaCrbM1(1-a-b), each of one or plurality of the B layers is composed of a nitride or carbonitride of AlcTidM2(1-c-d), each of one or plurality of the C layers is composed of a nitride or carbonitride of TieSifM3(1-e-f), and each of one or plurality of the D layers is composed of a nitride or carbonitride of TigSihM4(1-g-h).
Public/Granted literature
- US20210001410A1 SURFACE-COATED CUTTING TOOL AND METHOD FOR MANUFACTURING SAME Public/Granted day:2021-01-07
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