Nanocrystal coverings of the shtampova elements of equipment
A composition coatings onto blanking punches based on nanocrystal zirconium carbonitride and amorphous diamond-like carbon have been developed. The thin film material was obtained from the mixed flows of pulsed carbon plasma and DC zirconium plasma. The coating structure consists of δphase of Zr(CxN1-x)1-y having crystallites in size of 5-8 nm embedded in the amorphous carbon matrix. Factory testing of the coated blanking punches demonstrated the increase of the average service life of the punches as much as 3.2 times.