Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 1, 2008
Patent Application Number
11375567
Date Filed
March 15, 2006
Patent Primary Examiner
Patent abstract
The present invention relates to a cutting tool insert of a generally polygonal shape provided with a ceramic tip in a recess in at least one of its corners with a bottom surface and at least one side surface. At least the bottom surface of the recess is provided with rails with a height h being from about 50 to about 100 μm, width w being from about 100 to about 200 μm and spaced at distance 1 from about 0.75 to about 1.25 mm. The invention also relates to a method of making such an insert using a grinding wheel of a suitable profile before or after sintering or in the pressing operation.
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