是(shi)在冷(leng)沖(chong)壓加(jia)工(gong)(gong)(gong)中，將材(cai)料加(jia)工(gong)(gong)(gong)成零件(jian)（或半(ban)成品）的(de)(de)一(yi)(yi)種(zhong)特殊工(gong)(gong)(gong)藝裝備。工(gong)(gong)(gong)件(jian)在沖(chong)床的(de)(de)沖(chong)壓與模(mo)具(ju)的(de)(de)阻(zu)力(li)共(gong)同作用下(xia)產生塑性(xing)形變完成加(jia)工(gong)(gong)(gong)過程，沖(chong)床模(mo)具(ju)是(shi)沖(chong)壓工(gong)(gong)(gong)藝必不可(ke)少的(de)(de)一(yi)(yi)部分(fen)，沖(chong)床模(mo)具(ju)的(de)(de)精度很大程度上決定了工(gong)(gong)(gong)件(jian)加(jia)工(gong)(gong)(gong)精度。材(cai)料選(xuan)擇：42CrMo、55SiCr、T8、T10、9CrSi、 6CrW2Si、Cr12MoV、H13K、W18Cr4V。