利(li)用模(mo)具成(cheng)(cheng)形的加(jia)工(gong)工(gong)序(xu)，一般沖(chong)(chong)床加(jia)工(gong)的有(you)沖(chong)(chong)孔(kong)、切角(jiao)、落(luo)料(liao)、沖(chong)(chong)凸(tu)包（凸(tu)點），沖(chong)(chong)撕裂、抽孔(kong)、成(cheng)(cheng)形等加(jia)工(gong)方(fang)式，其加(jia)工(gong)需要(yao)有(you)相(xiang)應的模(mo)具來完成(cheng)(cheng)操(cao)作，如(ru)沖(chong)(chong)孔(kong)落(luo)料(liao)模(mo)、凸(tu)包模(mo)、撕裂模(mo)、抽孔(kong)模(mo)、成(cheng)(cheng)型(xing)模(mo)等，操(cao)作主要(yao)注意(yi)位(wei)置，方(fang)向性。
