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CNC Milling chuck collet DIN6388B EOC OZ Collet
2,Hardness : 46-50HRC
3,Collet's groove is used grinding process to suitable for high speed machining.
4, Inner hole,surface and end face are grinded for many times so as to reach Ra0.4.
5,Surface "environmental protection",special coating surface treatment,improve the hardness and endurance of the surface,cleaness better,accuracy stable,surface more smooth,antirust,fell comfortable,appearance nice.
Superb machining technology
1,-196℃ long cryogenic,nearly all of the residual austenite transformed into martensite.
2, Carbide precipitation of Nanoscale particles,increasing the hardness and tougjness.
3,Reducing residual stresses.
4, Wear resistance significantly improved.
Thermal aging processing
1,Long stereotyped thermal limitation removal of grinding residual stress.