沖壓件加工是利用模具使金屬板帶發生分離或成形的加工方法。其應用范圍十分廣闊。用于沖壓件加工(gong)(gong)的(de)鋁(lv)合(he)(he)金(jin)(jin)板可用韋氏(shi)(shi)硬(ying)(ying)度(du)(du)計檢測，材料(liao)(liao)厚度(du)(du)大于13mm時可改用巴(ba)氏(shi)(shi)硬(ying)(ying)度(du)(du)計，純鋁(lv)板或(huo)低硬(ying)(ying)度(du)(du)鋁(lv)合(he)(he)金(jin)(jin)板應采(cai)用巴(ba)氏(shi)(shi)硬(ying)(ying)度(du)(du)計。沖(chong)壓(ya)件(jian)加工(gong)(gong)包(bao)括沖(chong)裁、彎(wan)曲、拉(la)深、成(cheng)形(xing)、精(jing)整等(deng)(deng)工(gong)(gong)序。沖(chong)壓(ya)件(jian)加工(gong)(gong)的(de)材料(liao)(liao)主要是熱軋(ya)或(huo)冷(leng)軋(ya)（以冷(leng)軋(ya)為主）的(de)金(jin)(jin)屬板帶材料(liao)(liao)，例(li)如碳鋼板、合(he)(he)金(jin)(jin)鋼板、彈簧鋼板、鍍鋅板、鍍錫板、不銹鋼板、銅及銅合(he)(he)金(jin)(jin)板、鋁(lv)及鋁(lv)合(he)(he)金(jin)(jin)板等(deng)(deng)。沖(chong)壓(ya)件(jian)是靠壓(ya)力機和(he)(he)模具(ju)對(dui)板材、帶材、管材和(he)(he)型材等(deng)(deng)施(shi)加外力，使之產生塑性變形(xing)或(huo)分離，從而(er)獲(huo)得所需(xu)形(xing)狀和(he)(he)尺寸的(de)工(gong)(gong)件(jian)(沖(chong)壓(ya)件(jian))的(de)成(cheng)形(xing)加工(gong)(gong)方(fang)法。