1Cr18Ni9Ti(DCr18Ni9)是奥氏体不锈钢,在用来制造轴承保持架的冷冲压中,由于承受很大的剪切、扭弯、挤压和拉伸等应力作用,晶粒发生扭曲变形,使钢冷作硬化,给进一步冲压成形带来很大的困难,产品表面经常出现裂纹和凸起等缺陷。为了消除冷作硬化现象,须在成形前进行一次软化处理,消除加工应力和晶格扭曲等,使产 1Cr18Ni9Ti (DCr18Ni9) is austenitic stainless steel, used in the manufacture of bearing cage cold stamping, due to bear a lot of shear, twisting, extrusion and tensile stress, the grain distorted, so that the steel Cold hardening, to further stamping forming great difficulties, the surface of the product often cracks and bumps and other defects. In order to eliminate the phenomenon of cold work hardening, softening treatment must be carried out before forming, to eliminate the processing stress and lattice distortion, so that production