Invention Grant
- Patent Title: Diamond coated tool
- Patent Title (中): 金刚石涂层工具
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Application No.: US13139799Application Date: 2010-06-08
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Publication No.: US09302327B2Publication Date: 2016-04-05
- Inventor: Katsuhito Yoshida , Shigeru Yoshida , Yuichiro Seki , Kiichi Meguro , Shinji Matsukawa
- Applicant: Katsuhito Yoshida , Shigeru Yoshida , Yuichiro Seki , Kiichi Meguro , Shinji Matsukawa
- Applicant Address: JP Osaka-shi JP Itami-shi
- Assignee: Sumitomo Electric Industries, Ltd.,SUMITOMO ELECTRIC HARDMETAL CORP.
- Current Assignee: Sumitomo Electric Industries, Ltd.,SUMITOMO ELECTRIC HARDMETAL CORP.
- Current Assignee Address: JP Osaka-shi JP Itami-shi
- Agency: Venable LLP
- Agent Michael A. Sartori; Tamatane J. Aga
- Priority: JP2009-186563 20090811
- International Application: PCT/JP2010/059694 WO 20100608
- International Announcement: WO2011/018917 WO 20110217
- Main IPC: B24D3/00
- IPC: B24D3/00 ; B23B27/20 ; C23C16/27 ; B23B27/14 ; C23C16/02
Abstract:
The present invention provides a diamond coated tool which is resistant to exfoliation at an interface between a base material and a diamond layer. The diamond coated tool of the present invention is a diamond coated tool including a base material and a diamond layer coating a surface of the base material, and characterized in that the surface of the base material has an arithmetic average roughness Ra of not less than 0.1 μm and not more than 10 μm and an average length of roughness profile elements RSm of not less than 1 μm and not more than 100 μm, and that the diamond layer has a plurality of cavities extending from a portion bordering on the base material in a crystal growth direction.
Public/Granted literature
- US20110250394A1 DIAMOND COATED TOOL Public/Granted day:2011-10-13
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