Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 26, 2008
Patent Application Number
11240635
Date Filed
October 3, 2005
Patent Primary Examiner
Patent abstract
The present invention relates to a method of machining a metal work piece with a coated cutting tool insert having a cemented carbide body and a coating deposited as monolayer(s) or as multiple and/or alternating layers. The coating has a total thickness of from about 25 to about 75 μm and the machining is performed at a cutting speed of greater than about 600 m/min, preferably from about 800 to about 1500 m/min. The invention also relates to a coated cutting tool useful for such machining operation.
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