一般金属成型工艺和对应使用材料普通冲压SKD11Cr12MoVD2高速冲压精冲SKH51SKH9M2ASP23ASP60HAP10HAP40ASP30冷挤压冷锻冷镦精锻DC53LD8566LVK6QCM8SLD8SLDSKD11LGASSAB88KD21热锻温锻热挤压SKD611.23441.23678407DIEVARA-MAXEX1DAC55DH31SH13H111.8566热冲压unimax8566LGDAC55DIEVAR1.2367拉深DC53LD8566LVK6滚压assab88qcm8