Patent ID: 8043729
Filing Date: 2011-10-25
Classification: C23C,Y10T

Abstract:
1. A cutting insert comprising a cemented carbide body and a coating wherein said cemented carbide body has a composition of from about 12.5 to about 14.5 wt % Co, from about 0.52 to about 0.64 wt % Cr, balance WC, with a CW-ratio in the range of from about 0.76 to about 0.84 and a polarization coercivity, HcJ, value in the range of from about 12.5 to about 14.5 kA/m; said insert being at least partly coated with an from about 4.1 to about 6.9 μm thick coating including at least three layers of TiC a first TiC a second TiC a third TiC the α-Al