Patent ID: 8053063
Filing Date: 2011-11-08
Classification: B22F,C22C,C23C,Y10T

Abstract:
1. A cutting tool insert, comprising: a cemented carbide body; and a coating; wherein said body has a composition comprising: about 9.3-10.9 wt% Co; about 0.5-2.5 wt% of metals selected from the group consisting of Group IVb metal, Group Vb metal, Group VIb metal, and combinations thereof; and balance WC; wherein said body has a coercivity of about 10-15 kA/m, and an S-value of about 0.81-0.95; and wherein said coating consists of: a first (innermost) layer of TiC a second layer of TiC an outer layer of strongly textured Al