沖(chong)(chong)(chong)(chong)壓(ya)(ya)(ya)件(jian)(jian)是借助于常規或(huo)專(zhuan)用沖(chong)(chong)(chong)(chong)壓(ya)(ya)(ya)設備的(de)(de)動(dong)力，使板(ban)(ban)(ban)料(liao)在模(mo)(mo)具(ju)里(li)直接受(shou)到變形(xing)(xing)力并進行變形(xing)(xing)，從而(er)獲得   形(xing)(xing)狀,尺(chi)寸和(he)性(xing)(xing)(xing)能(neng)的(de)(de)產品(pin)零件(jian)(jian)的(de)(de)生(sheng)產技(ji)術。板(ban)(ban)(ban)料(liao)，模(mo)(mo)具(ju)和(he)設備是沖(chong)(chong)(chong)(chong)壓(ya)(ya)(ya)加(jia)工(gong)的(de)(de)三要素。沖(chong)(chong)(chong)(chong)壓(ya)(ya)(ya)加(jia)工(gong)是一(yi)種金屬冷(leng)變形(xing)(xing)加(jia)工(gong)方法。所以，被(bei)稱之為(wei)冷(leng)沖(chong)(chong)(chong)(chong)壓(ya)(ya)(ya)或(huo)板(ban)(ban)(ban)料(liao)沖(chong)(chong)(chong)(chong)壓(ya)(ya)(ya)，簡稱沖(chong)(chong)(chong)(chong)壓(ya)(ya)(ya)。它是金屬塑性(xing)(xing)(xing)加(jia)工(gong)(或(huo)壓(ya)(ya)(ya)力加(jia)工(gong))的(de)(de)主要方法之一(yi)，也隸屬于材料(liao)成(cheng)型工(gong)程(cheng)技(ji)術。環球的(de)(de)鋼(gang)材中(zhong)，有(you)50～60%是板(ban)(ban)(ban)材制(zhi)成(cheng)的(de)(de)，此(ci)中(zhong)大部分是經過沖(chong)(chong)(chong)(chong)壓(ya)(ya)(ya)榨成(cheng)的(de)(de)成(cheng)品(pin)。汽(qi)車的(de)(de)車身(shen)、散熱器(qi)(qi)片(pian)(pian)，汽(qi)鍋的(de)(de)汽(qi)包、容器(qi)(qi)的(de)(de)殼體、電(dian)(dian)機、電(dian)(dian)器(qi)(qi)的(de)(de)鐵芯硅鋼(gang)片(pian)(pian)等但凡沖(chong)(chong)(chong)(chong)壓(ya)(ya)(ya)加(jia)工(gong)的(de)(de)。儀器(qi)(qi)儀表(biao)、家用電(dian)(dian)器(qi)(qi)、辦(ban)公呆板(ban)(ban)(ban)、保管器(qi)(qi)皿(min)等產品(pin)中(zhong)，也有(you)大量沖(chong)(chong)(chong)(chong)壓(ya)(ya)(ya)件(jian)(jian)。沖(chong)(chong)(chong)(chong)壓(ya)(ya)(ya)是   的(de)(de)臨蓐舉(ju)措，采取(qu)復合模(mo)(mo)，異常是多(duo)工(gong)位級進模(mo)(mo)，可(ke)在一(yi)臺壓(ya)(ya)(ya)力機上(shang)完成(cheng)多(duo)道沖(chong)(chong)(chong)(chong)壓(ya)(ya)(ya)技(ji)術操作，完成(cheng)材料(liao)的(de)(de)自動(dong)生(sheng)成(cheng)。生(sheng)成(cheng)速度(du)快，休息時間(jian)長，臨蓐成(cheng)本低，集體每分鐘可(ke)臨蓐數(shu)百件(jian)(jian)，受(shou)到許多(duo)加(jia)工(gong)廠的(de)(de)喜愛。沖(chong)(chong)(chong)(chong)壓(ya)(ya)(ya)件(jian)(jian)與(yu)鑄件(jian)(jian)、鍛件(jian)(jian)斗勁，存(cun)在薄、勻、輕(qing)、強的(de)(de)特性(xing)(xing)(xing)。沖(chong)(chong)(chong)(chong)壓(ya)(ya)(ya)可(ke)制(zhi)出(chu)此(ci)熟手徑難(nan)于制(zhi)造的(de)(de)帶有(you)增強筋、肋、盤曲或(huo)翻邊的(de)(de)工(gong)件(jian)(jian)，以提高其剛性(xing)(xing)(xing)。由(you)于駁(bo)回粗糙(cao)模(mo)(mo)具(ju)，工(gong)件(jian)(jian)精度(du)可(ke)達微米級，且精度(du)高、規格一(yi)致，能(neng)夠沖(chong)(chong)(chong)(chong)壓(ya)(ya)(ya)出(chu)孔窩、凸(tu)臺等。在實(shi)際生(sheng)產中(zhong)，常用與(yu)沖(chong)(chong)(chong)(chong)壓(ya)(ya)(ya)過程(cheng)近似的(de)(de)工(gong)藝性(xing)(xing)(xing)試驗，如(ru)拉深性(xing)(xing)(xing)能(neng)試驗、脹(zhang)形(xing)(xing)性(xing)(xing)(xing)能(neng)試驗等檢驗材料(liao)的(de)(de)沖(chong)(chong)(chong)(chong)壓(ya)(ya)(ya)性(xing)(xing)(xing)能(neng)，以保證成(cheng)品(pin)質量和(he)高的(de)(de)合格率。

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