Invention Grant
- Patent Title: Surface coated cutting tool
- Patent Title (中): 表面切割工具
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Application No.: US12740564Application Date: 2009-04-24
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Publication No.: US08389108B2Publication Date: 2013-03-05
- Inventor: Hideki Moriguchi , Makoto Setoyama , Miki Miyanaga , Junya Okida , Sachiko Koike , Daiji Tabayashi
- Applicant: Hideki Moriguchi , Makoto Setoyama , Miki Miyanaga , Junya Okida , Sachiko Koike , Daiji Tabayashi
- Applicant Address: JP Osaka JP Hyogo
- Assignee: Sumitomo Electric Industries, Ltd.,Sumitomo Electric Hardmetal Corp.
- Current Assignee: Sumitomo Electric Industries, Ltd.,Sumitomo Electric Hardmetal Corp.
- Current Assignee Address: JP Osaka JP Hyogo
- Agency: Ditthavong Mori & Steiner, P.C.
- Priority: JP2008-119040 20080430
- International Application: PCT/JP2009/058152 WO 20090424
- International Announcement: WO2009/133814 WO 20091105
- Main IPC: B32B7/02
- IPC: B32B7/02

Abstract:
A surface-coated cutting tool of the present invention includes a substrate and a coated layer formed on the substrate, and the coated layer is a physical-vapor-deposition layer having a thickness of 10 μm or more. A surface region having a thickness of 1 μm from a surface of the coated layer includes a first region whose integrated residual stress is a compressive stress and a second region whose integrated residual stress is a tensile stress, and the integrated residual stress of the surface region falls within the range of −1.5 to 1.5 GPa in any region included in the surface region.
Public/Granted literature
- US20100260561A1 SURFACE COATED CUTTING TOOL Public/Granted day:2010-10-14
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