Invention Grant
- Patent Title: Surface-coated cutting tool and method for manufacturing same
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Application No.: US16482068Application Date: 2018-12-27
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Publication No.: US11185928B2Publication Date: 2021-11-30
- Inventor: Anongsack Paseuth , Yasuki Kido , Susumu Okuno , Shinya Imamura
- 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: JPJP2018-054715 20180322
- International Application: PCT/JP2018/048019 WO 20181227
- International Announcement: WO2019/181135 WO 20190926
- Main IPC: C23C16/34
- IPC: C23C16/34 ; B23B27/14 ; B23C5/16

Abstract:
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.
Public/Granted literature
- US11311945B2 Surface-coated cutting tool and method for manufacturing same Public/Granted day:2022-04-26
Information query
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