Patent ID: 7655293
Filing Date: 2010-02-02
Classification: B24C,C23C,Y10T

Abstract:
1. A CVD coated cutting tool insert of cemented carbide, cermet or ceramics comprising a body of generally polygonal or round shape having at least one rake face and at least one clearance face, said insert being at least partly coated with a from about 2 to about 10 μm thick coating including at least one layer of TiC x N y and an α-Al 2 O 3 -layer being the outer layer at least on the rake face wherein (a) on said at least one rake face and said at least one clearance face the TiC the α-Al or (b) on only said at least one rake face the TiC the α-Al and (c) on said at least one clearance face the TiC the α-Al