Patent ID: 8329000

Claim:
A process for manufacturing a workpiece having a body and a wear resistant hard coating system on at least a part of the surface of said body, said process comprising: a. providing said workpiece body in a plasma coating vacuum chamber, b. applying said system to said body by a physical vapor deposition process during a processing time, said system comprising at least one layer of the following composition (Al 1-a-b-c Cr a B b Z c )X where X is at least one of: N, C, CN, NO, CO, CNO; Z is at least one of: W, Mo, Ta, Cb (Nb); wherein there is valid 0.2≦a≦0.5; 01≦b≦0.2; 001≦c≦0.04, c. establishing a temperature of at least 550° C. to the surface of the coated body during at least a predominant part of said processing time.