C Power Milling Collets

#Material: 42CrMo;

#Hardness:46-50HRC;

#Two kinds looks provide:polishing or chemical nickel-plating processing

#lnner hole grinding for many times,so as to reach Ra0.4.has a mirror effect

#End and the cylindrical are grinding far many times,can reach Ra0.4,has a mirr0r effect;

#Surface” environmental protection” ,special coating surface treatment, improve the hardness and endurance of the surface, cleaness better,accuracy stable,surface more smooth,antirust,feel comfortable,appeararace nice Cryogenic treatment

1.-185℃ long cryogenic.nearly all of the residual austenite into martensite

2.Carbide precipitation of Nanoscale particles,increasing the hardness and toughness;

3.Reducing residual stresses;

4.Wear resistance significantly improved;

#Thermal aging processing

≥100h long stereotyped therml limitation removal of grinding esidual stress.