Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kazuo Yamagata0
Akihiko Ikegaya0
Date of Patent
August 15, 2006
0Patent Application Number
111382580
Date Filed
May 27, 2005
0Patent Primary Examiner
Patent abstract
A coated cutting tool with a hard coating layer formed on a substrate. The substrate comprises a binder phase and a hard phase. The coating layer comprises a smooth face having a surface roughness of 0.2 μm or less substantially at the blade-edge ridge and in a region which extends at least 200 μm from the rake face side boundary of the ridge toward the rake face side, and extends at least 50 μm from the flank side boundary of the ridge toward the flank side.
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