沖(chong)(chong)壓(ya)(ya)(ya)件是借助于(yu)常規(gui)或專i用沖(chong)(chong)壓(ya)(ya)(ya)設備(bei)的(de)(de)動力，使板(ban)料在模(mo)具(ju)(ju)里直接受(shou)到變(bian)形(xing)力并進行變(bian)形(xing)，上海五(wu)金(jin)(jin)沖(chong)(chong)壓(ya)(ya)(ya)，從而(er)獲(huo)得一定形(xing)狀，尺(chi)寸和性能的(de)(de)產品零(ling)件的(de)(de)生(sheng)產技術(shu)(shu)。板(ban)料，模(mo)具(ju)(ju)和設備(bei)是沖(chong)(chong)壓(ya)(ya)(ya)加(jia)工(gong)的(de)(de)三要(yao)素(su)。沖(chong)(chong)壓(ya)(ya)(ya)加(jia)工(gong)是一種金(jin)(jin)屬(shu)冷(leng)變(bian)形(xing)加(jia)工(gong)方(fang)法(fa)。所以，被(bei)稱(cheng)之為冷(leng)沖(chong)(chong)壓(ya)(ya)(ya)或板(ban)料沖(chong)(chong)壓(ya)(ya)(ya)，五(wu)金(jin)(jin)沖(chong)(chong)壓(ya)(ya)(ya)廠，簡稱(cheng)沖(chong)(chong)壓(ya)(ya)(ya)。它是金(jin)(jin)屬(shu)塑(su)性加(jia)工(gong)（或壓(ya)(ya)(ya)力加(jia)工(gong)）的(de)(de)主要(yao)方(fang)法(fa)之一，也隸屬(shu)于(yu)材料成型工(gong)程技術(shu)(shu)。

五(wu)金精(jing)密(mi)沖壓(ya)件加工的(de)硬(ying)(ying)(ying)度(du)檢(jian)驗采用(yong)洛氏硬(ying)(ying)(ying)度(du)計。小型的(de)、具有復雜樣式(shi)(shi)的(de)沖壓(ya)件，可以用(yong)來測試平面非常(chang)小，無法在普通臺式(shi)(shi)洛氏硬(ying)(ying)(ying)度(du)計上檢(jian)驗。

五(wu)金(jin)精(jing)密沖(chong)(chong)壓(ya)件(jian)加工包含沖(chong)(chong)裁、蜿蜒(yan)、拉深、成形、CNC機(ji)器(qi)加工精(jing)整等工序(xu)。五(wu)金(jin)精(jing)密沖(chong)(chong)壓(ya)件(jian)加工的(de)質料(liao)要緊(jin)是熱(re)軋(ya)或冷軋(ya)（以(yi)冷軋(ya)為主）的(de)金(jin)屬板帶質料(liao)，例如(ru)碳鋼板、合(he)(he)金(jin)鋼板、彈簧鋼板、鍍鋅板、鍍錫(xi)板、不(bu)銹鋼板、銅(tong)(tong)及銅(tong)(tong)合(he)(he)金(jin)板、鋁及鋁合(he)(he)金(jin)板等。

五金沖(chong)壓(ya)工(gong)(gong)(gong)藝需要計算哪些事項?五金沖(chong)壓(ya)就是(shi)利用沖(chong)床及模(mo)具將不(bu)銹鋼，精密五金沖(chong)壓(ya)，鐵(tie)，鋁，銅等(deng)板材及異性材使(shi)其變(bian)(bian)形或(huo)斷裂，達到具有(you)一定形狀(zhuang)和尺寸的(de)(de)一種工(gong)(gong)(gong)藝。五金沖(chong)壓(ya)工(gong)(gong)(gong)藝大(da)致可分(fen)為分(fen)離工(gong)(gong)(gong)序(xu)和成(cheng)(cheng)形工(gong)(gong)(gong)序(xu)(又分(fen)彎曲、拉深、成(cheng)(cheng)形)兩大(da)類。分(fen)離工(gong)(gong)(gong)序(xu)是(shi)在(zai)沖(chong)壓(ya)過程(cheng)中(zhong)使(shi)沖(chong)壓(ya)件(jian)與坯料沿(yan)一定的(de)(de)輪廓線(xian)相互(hu)分(fen)離，同時沖(chong)壓(ya)件(jian)分(fen)離斷面(mian)的(de)(de)質量也要滿足一定的(de)(de)要求(qiu);成(cheng)(cheng)形工(gong)(gong)(gong)序(xu)是(shi)使(shi)沖(chong)壓(ya)坯料在(zai)不(bu)破(po)壞的(de)(de)條件(jian)下發(fa)生塑性變(bian)(bian)形，并(bing)轉化(hua)成(cheng)(cheng)所要求(qiu)的(de)(de)成(cheng)(cheng)品(pin)形狀(zhuang)，同時也應滿足尺寸公差等(deng)方面(mian)的(de)(de)要求(qiu)。