Comprehensive inspection way of chuck

Comprehensive
features of CNC Chucks
Materia1:20CrMnTi;
Hardness:58士2HRC;
7:24 Tapper tolerance≤AT3;
Carbon depth>0.8;
Surface roughness:Ra<0.4u;
Provide 2 kinds appearance;Sand一blasting and Electroless plating process;
Sub-zero treatment:
All of the CNC chucks are processed long time
sub-zero treatment(一180℃,mare than 20 hours) Make the residual austenite into martensite and precipitate of nano-sized carbide particLes,enhance chucks hardness.
toughness durability,and reduce the residual internal stress.
Thermal aging treatment:
Long time thermal aging treatment can get rid of the residual
interna stress in grinding process.