Invention Grant
- Patent Title: Surface-coated cutting tool
- Patent Title (中): 表面切割工具
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Application No.: US13393473Application Date: 2011-06-10
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Publication No.: US08715838B2Publication Date: 2014-05-06
- Inventor: Yoshio Okada , Minoru Itoh , Hideaki Kanaoka , Chie Suzuki , Anongsack Paseuth
- Applicant: Yoshio Okada , Minoru Itoh , Hideaki Kanaoka , Chie Suzuki , Anongsack Paseuth
- Applicant Address: JP Itami-shi
- Assignee: Sumitomo Electric Hardmetal Corp.
- Current Assignee: Sumitomo Electric Hardmetal Corp.
- Current Assignee Address: JP Itami-shi
- Agency: Venable LLP
- Agent Michael A. Sartori; Tamatane J. Aga
- Priority: JP2010-251705 20101110
- International Application: PCT/JP2011/063351 WO 20110610
- International Announcement: WO2012/063515 WO 20120518
- Main IPC: B23B9/00
- IPC: B23B9/00 ; B23B5/14 ; B23P15/28

Abstract:
Wear resistance and chipping resistance are both highly established for a surface-coated cutting tool. The surface-coated cutting tool of the present invention includes a base material and a coat film formed on the base material. A first coat layer at a chamfer portion has residual stress that exhibits a minimal value at a depth A within 2 μm from the surface, and that is greater than or equal to −7 GPa and less than or equal to −1 GPa.
Public/Granted literature
- US20120282049A1 SURFACE-COATED CUTTING TOOL Public/Granted day:2012-11-08
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