Workpiece with hard coating

1. 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.

2. The process of claim 1 , wherein said at least one layer exhibits a glassy like growth structure in the SEM cross-section.

3. The process of claim 1 or 2 , comprising selecting said temperature to be at least 600° C.

4. A method of manufacturing a device at least in part of a hard material comprising a cutting process of said hard material using a cutting tool comprising a body of one of high-speed steel, hardened steel, cemented carbide, cubic boron nitride, a cermet and of a ceramic material, and a wear resistant hard coating system on at least a part of the surface of said body, 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.

5. The method of claim 4 , said at least one layer exhibiting a glassy like growth structure in the SEM cross-section.

6. The method of claim 4 or 5 , said hard material having a Rockwell hardness of at least HRC 52.

7. The method of one of claim 4 or 5 , wherein the hard material is hardened steel.

8. The method of claim 6 , wherein the hard material is hardened steel.