Invention Grant
- Patent Title: Coated cutting insert and manufacturing method thereof
- Patent Title (中): 涂层切削刀片及其制造方法
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Application No.: US11792078Application Date: 2005-11-25
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Publication No.: US08133576B2Publication Date: 2012-03-13
- Inventor: Naoya Omori , Yoshio Okada , Minoru Itoh , Norihiro Takanashi , Shinya Imamura , Susumu Okuno
- Applicant: Naoya Omori , Yoshio Okada , Minoru Itoh , Norihiro Takanashi , Shinya Imamura , Susumu Okuno
- Applicant Address: JP Hyogo
- Assignee: Sumitomo Electric Hardmetal Corp.
- Current Assignee: Sumitomo Electric Hardmetal Corp.
- Current Assignee Address: JP Hyogo
- Agency: McDermott Will & Emery LLP
- Priority: JP2004-351705 20041203
- International Application: PCT/JP2005/021704 WO 20051125
- International Announcement: WO2006/059551 WO 20060608
- Main IPC: B23B27/14
- IPC: B23B27/14

Abstract:
A coated cutting insert according to the present invention includes a substrate, a base layer formed on the substrate, and an indicating layer formed on a part of the base layer. The base layer exhibits a color different from that of the indicating layer. The indicating layer is formed on the base layer, in at least a part of a surface including a cutting-edge portion and a rake face except for a flank face. When a surface relative roughness Ra of a breaker recess portion or a land portion of the rake face is set to Aμm and a surface relative roughness Ra of the flank face is set to Bμm, relation of B/A≦1 is established.
Public/Granted literature
- US20070298230A1 Coated Cutting Insert and Manufacturing Method Thereof Public/Granted day:2007-12-27
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