Invention Grant
- Patent Title: Surface-coated cutting tool
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Application No.: US16955866Application Date: 2019-01-30
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Publication No.: US11534836B2Publication Date: 2022-12-27
- Inventor: Kouhei Yoshimura , Haruyo Fukui , Makoto Setoyama , Keizo Tanaka
- 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: Faegre Drinker Biddle & Reath LLP
- Priority: JPJP2018-050918 20180319
- International Application: PCT/JP2019/003140 WO 20190130
- International Announcement: WO2019/181220 WO 20190926
- Main IPC: B23B27/14
- 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.
Public/Granted literature
- US20200331071A1 SURFACE-COATED CUTTING TOOL Public/Granted day:2020-10-22
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