精密(mi)拉(la)(la)伸(shen)(shen)沖壓(ya)中，鋁合(he)金(jin)拉(la)(la)伸(shen)(shen)件(jian)是比(bi)(bi)較難(nan)加(jia)工(gong)(gong)的(de)(de)(de)(de)(de)，但是在(zai)加(jia)工(gong)(gong)中注意某(mou)些問題點(dian)(dian)就可以(yi)很順(shun)利的(de)(de)(de)(de)(de)完成加(jia)工(gong)(gong)了。鋁合(he)金(jin)拉(la)(la)伸(shen)(shen)件(jian)加(jia)工(gong)(gong)注意事項有(you)(you)：在(zai)取料(liao)(liao)(liao)、移動、拉(la)(la)伸(shen)(shen)中材料(liao)(liao)(liao)不(bu)能(neng)(neng)相(xiang)互(hu)(hu)碰擦，堆疊(die)以(yi)及(ji)纏繞等，相(xiang)互(hu)(hu)之(zhi)間要留(liu)有(you)(you)一定的(de)(de)(de)(de)(de)空隙。對(dui)容易折(zhe)彎、出料(liao)(liao)(liao)長(chang)短的(de)(de)(de)(de)(de)鋁合(he)金(jin)材料(liao)(liao)(liao)要及(ji)時(shi)處(chu)理。原(yuan)材料(liao)(liao)(liao)要冷卻(que)到50°以(yi)下才能(neng)(neng)移到拉(la)(la)伸(shen)(shen)架上(shang)進行拉(la)(la)伸(shen)(shen)加(jia)工(gong)(gong)，溫度(du)(du)過高會(hui)燙(tang)到作業員(yuan)和(he)燙(tang)壞坯(pi)(pi)(pi)毛(mao)條(tiao)，也不(bu)能(neng)(neng)徹底的(de)(de)(de)(de)(de)消除材料(liao)(liao)(liao)內(nei)應力(li)從(cong)而(er)產(chan)(chan)生(sheng)(sheng)(sheng)廢品。由(you)于毛(mao)條(tiao)有(you)(you)阻熱效果，裝(zhuang)飾外表(biao)需(xu)求高的(de)(de)(de)(de)(de)鋁合(he)金(jin)材料(liao)(liao)(liao)要多翻轉，便于散熱均(jun)勻，從(cong)而(er)減少橫向亮斑(ban)。要注意寬(kuan)厚(hou)比(bi)(bi)較高，弧度(du)(du)大、壁厚(hou)細、形狀(zhuang)奇怪等鋁合(he)金(jin)材料(liao)(liao)(liao)的(de)(de)(de)(de)(de)小腳、薄齒(chi)、長(chang)腿、圓弧面(mian)、傾斜(xie)面(mian)、開口、視點(dian)(dian)等受(shou)力(li)情況，避免材料(liao)(liao)(liao)部分(fen)或者(zhe)點(dian)(dian)狀(zhuang)尺(chi)度(du)(du)變(bian)(bian)形、扭曲、螺旋等。拉(la)(la)伸(shen)(shen)量要控制在(zai)百分(fen)之(zhi)一的(de)(de)(de)(de)(de)擺(bai)布，沖壓(ya)過程中需(xu)根據原(yuan)材料(liao)(liao)(liao)的(de)(de)(de)(de)(de)出料(liao)(liao)(liao)實際情況與各(ge)(ge)種(zhong)具(ju)(ju)體(ti)(ti)需(xu)求加(jia)以(yi)調整(zheng)。在(zai)相(xiang)互(hu)(hu)對(dui)立的(de)(de)(de)(de)(de)技(ji)能(neng)(neng)需(xu)求中尋找(zhao)滿足各(ge)(ge)種(zhong)具(ju)(ju)體(ti)(ti)需(xu)求的(de)(de)(de)(de)(de)拉(la)(la)伸(shen)(shen)量。造成表(biao)面(mian)劃(hua)(hua)(hua)痕(hen)的(de)(de)(de)(de)(de)因素(su)有(you)(you)：不(bu)銹(xiu)鋼拉(la)(la)伸(shen)(shen)件(jian)的(de)(de)(de)(de)(de)表(biao)面(mian)會(hui)出現(xian)劃(hua)(hua)(hua)痕(hen)是由(you)于工(gong)(gong)件(jian)與模(mo)(mo)具(ju)(ju)表(biao)面(mian)存在(zai)相(xiang)對(dui)的(de)(de)(de)(de)(de)移動，在(zai)一定的(de)(de)(de)(de)(de)壓(ya)力(li)促使(shi)(shi)下，導致(zhi)坯(pi)(pi)(pi)料(liao)(liao)(liao)和(he)模(mo)(mo)具(ju)(ju)局部表(biao)面(mian)直接產(chan)(chan)生(sheng)(sheng)(sheng)摩擦，加(jia)之(zhi)坯(pi)(pi)(pi)料(liao)(liao)(liao)的(de)(de)(de)(de)(de)變(bian)(bian)形熱使(shi)(shi)得(de)坯(pi)(pi)(pi)料(liao)(liao)(liao)和(he)金(jin)屑熔蓋在(zai)模(mo)(mo)具(ju)(ju)的(de)(de)(de)(de)(de)表(biao)面(mian)上(shang)，使(shi)(shi)工(gong)(gong)件(jian)外表(biao)擦傷產(chan)(chan)生(sheng)(sheng)(sheng)劃(hua)(hua)(hua)痕(hen)。

較軟的材料在(zai)沖壓后具(ju)有較小(xiao)的彈性變形和較小(xiao)的彈性回復率，這使得零(ling)件(jian)更加精確。鹽(yan)田區(qu)鐵鎳(nie)合金4J33連接臺加工精密拉伸五金件(jian)

深(shen)錐形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)件(jian)(jian)由于深(shen)度變(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)程度較(jiao)(jiao)(jiao)大(da)，極易引起坯料局部(bu)(bu)(bu)過(guo)度變(bian)(bian)(bian)(bian)薄乃至破裂，需要經(jing)過(guo)多(duo)(duo)次過(guo)渡(du)逐漸成(cheng)(cheng)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)多(duo)(duo)次拉(la)(la)(la)(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)成(cheng)(cheng)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)高矩(ju)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)件(jian)(jian)，其(qi)(qi)變(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)不(bu)僅與(yu)深(shen)圓筒(tong)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)件(jian)(jian)的(de)(de)(de)(de)拉(la)(la)(la)(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)不(bu)同，與(yu)低(di)盒形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)件(jian)(jian)的(de)(de)(de)(de)變(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)也有很大(da)差(cha)別曲面(mian)(mian)拉(la)(la)(la)(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)成(cheng)(cheng)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)，使金屬平板坯料外法蘭部(bu)(bu)(bu)分(fen)縮小(xiao)(xiao)，內(nei)法蘭部(bu)(bu)(bu)分(fen)伸(shen)(shen)(shen)(shen)(shen)(shen)長，成(cheng)(cheng)為(wei)非(fei)直(zhi)壁(bi)非(fei)平底(di)的(de)(de)(de)(de)曲面(mian)(mian)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)狀的(de)(de)(de)(de)沖壓成(cheng)(cheng)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)方(fang)法將初拉(la)(la)(la)(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)進(jin)行再拉(la)(la)(la)(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)成(cheng)(cheng)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)為(wei)臺階形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)底(di)部(bu)(bu)(bu)。深(shen)度較(jiao)(jiao)(jiao)深(shen)的(de)(de)(de)(de)部(bu)(bu)(bu)分(fen)在拉(la)(la)(la)(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)成(cheng)(cheng)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)初期就產生(sheng)(sheng)變(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)，深(shen)度較(jiao)(jiao)(jiao)淺的(de)(de)(de)(de)部(bu)(bu)(bu)分(fen)在拉(la)(la)(la)(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)的(de)(de)(de)(de)后期產生(sheng)(sheng)變(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)與(yu)普通拉(la)(la)(la)(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)不(bu)同，變(bian)(bian)(bian)(bian)薄拉(la)(la)(la)(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)主(zhu)要是(shi)在拉(la)(la)(la)(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)過(guo)程中(zhong)改變(bian)(bian)(bian)(bian)拉(la)(la)(la)(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)件(jian)(jian)筒(tong)壁(bi)的(de)(de)(de)(de)厚度。變(bian)(bian)(bian)(bian)薄拉(la)(la)(la)(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)加(jia)(jia)工(gong)（Ironing）：與(yu)普通拉(la)(la)(la)(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)不(bu)同，變(bian)(bian)(bian)(bian)薄拉(la)(la)(la)(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)主(zhu)要是(shi)在拉(la)(la)(la)(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)過(guo)程中(zhong)改變(bian)(bian)(bian)(bian)拉(la)(la)(la)(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)件(jian)(jian)筒(tong)壁(bi)的(de)(de)(de)(de)厚度。凸凹模之間的(de)(de)(de)(de)間隙小(xiao)(xiao)于毛(mao)坯厚度，毛(mao)坯直(zhi)壁(bi)部(bu)(bu)(bu)分(fen)在通過(guo)間隙時，處(chu)于較(jiao)(jiao)(jiao)大(da)的(de)(de)(de)(de)均勻壓應力之下，拉(la)(la)(la)(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)過(guo)程中(zhong)壁(bi)厚變(bian)(bian)(bian)(bian)薄的(de)(de)(de)(de)同時，消除(chu)容(rong)器壁(bi)厚偏差(cha)，增(zeng)加(jia)(jia)容(rong)器表面(mian)(mian)的(de)(de)(de)(de)光滑度，提高精度和(he)強度面(mian)(mian)板拉(la)(la)(la)(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)加(jia)(jia)工(gong)（Paneldrawing）：面(mian)(mian)板產品是(shi)板材沖壓件(jian)(jian)，表面(mian)(mian)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)狀復雜。在拉(la)(la)(la)(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)工(gong)序中(zhong)，毛(mao)坯變(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)復雜，其(qi)(qi)成(cheng)(cheng)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)性質已非(fei)簡單的(de)(de)(de)(de)拉(la)(la)(la)(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)成(cheng)(cheng)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)，而是(shi)拉(la)(la)(la)(la)(la)(la)(la)深(shen)與(yu)脹形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)同時存在的(de)(de)(de)(de)復合成(cheng)(cheng)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)。矩(ju)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)再拉(la)(la)(la)(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)加(jia)(jia)工(gong)（Rectangularredrawing）：多(duo)(duo)次拉(la)(la)(la)(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)成(cheng)(cheng)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)高矩(ju)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)件(jian)(jian)，其(qi)(qi)變(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)不(bu)僅與(yu)深(shen)圓筒(tong)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)件(jian)(jian)的(de)(de)(de)(de)拉(la)(la)(la)(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)不(bu)同，與(yu)低(di)盒形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)件(jian)(jian)的(de)(de)(de)(de)變(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)也有很大(da)差(cha)別。精密(mi)拉(la)(la)(la)(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)五(wu)金件(jian)(jian)加(jia)(jia)工(gong)除(chu)了以上兩(liang)個(ge)方(fang)面(mian)(mian)，解決(jue)沖壓件(jian)(jian)清洗(xi)問題(ti)還需要注(zhu)意哪些問題(ti)呢？

毛(mao)坯與(yu)凸(tu)凹(ao)模(mo)中心不(bu)(bu)合或五(wu)金拉(la)(la)(la)(la)深(shen)件沖(chong)(chong)壓(ya)(ya)(ya)材(cai)料(liao)厚度(du)不(bu)(bu)均勻，以及凹(ao)模(mo)圓角半(ban)徑和(he)凸(tu)凹(ao)模(mo)間(jian)隙(xi)不(bu)(bu)均勻，凹(ao)模(mo)圓角半(ban)徑太大(da)，在(zai)(zai)拉(la)(la)(la)(la)深(shen)階段脫離了(le)壓(ya)(ya)(ya)邊(bian)(bian)圈(quan)(quan)，使(shi)尚未越過(guo)(guo)圓角的(de)(de)(de)(de)(de)材(cai)料(liao)壓(ya)(ya)(ya)邊(bian)(bian)圈(quan)(quan)壓(ya)(ya)(ya)不(bu)(bu)到起(qi)皺(zhou)(zhou)后(hou)被拉(la)(la)(la)(la)入凹(ao)模(mo)形(xing)成(cheng)口緣褶(zhe)皺(zhou)(zhou)。五(wu)金拉(la)(la)(la)(la)深(shen)件邊(bian)(bian)緣不(bu)(bu)平對策：五(wu)金拉(la)(la)(la)(la)深(shen)件沖(chong)(chong)模(mo)重新(xin)定位，校正凹(ao)模(mo)圓角半(ban)徑和(he)凸(tu)凹(ao)模(mo)間(jian)隙(xi)使(shi)其大(da)小均勻后(hou)再(zai)投入生(sheng)產減少凹(ao)模(mo)圓角半(ban)徑或采用弧形(xing)壓(ya)(ya)(ya)邊(bian)(bian)圈(quan)(quan)裝置即可(ke)消除褶(zhe)皺(zhou)(zhou)。為(wei)什(shen)么有的(de)(de)(de)(de)(de)拉(la)(la)(la)(la)伸(shen)(shen)件廠家沖(chong)(chong)壓(ya)(ya)(ya)出(chu)(chu)來的(de)(de)(de)(de)(de)不(bu)(bu)銹(xiu)鋼拉(la)(la)(la)(la)深(shen)件表(biao)面那么光(guang)滑(hua)(hua)(hua)，無劃(hua)痕(hen)？有的(de)(de)(de)(de)(de)生(sheng)產出(chu)(chu)來的(de)(de)(de)(de)(de)工件卻是(shi)(shi)大(da)批(pi)量的(de)(de)(de)(de)(de)出(chu)(chu)現(xian)(xian)劃(hua)痕(hen)。經(jing)過(guo)(guo)工程(cheng)師分(fen)析發現(xian)(xian)，不(bu)(bu)銹(xiu)鋼拉(la)(la)(la)(la)深(shen)件表(biao)出(chu)(chu)現(xian)(xian)的(de)(de)(de)(de)(de)那些劃(hua)痕(hen)是(shi)(shi)在(zai)(zai)沖(chong)(chong)壓(ya)(ya)(ya)移滑(hua)(hua)(hua)的(de)(de)(de)(de)(de)過(guo)(guo)程(cheng)中造成(cheng)的(de)(de)(de)(de)(de)。該(gai)怎么防止出(chu)(chu)現(xian)(xian)劃(hua)痕(hen)呢？改變滑(hua)(hua)(hua)移時的(de)(de)(de)(de)(de)摩擦狀態(tai)。可(ke)以用液態(tai)潤(run)(run)滑(hua)(hua)(hua)、涂油(you)(you)(you)覆膜(mo)、噴涂刷油(you)(you)(you)以及凹(ao)模(mo)強制潤(run)(run)液等涂抹方(fang)式。精密拉(la)(la)(la)(la)伸(shen)(shen)件就必須保證潤(run)(run)滑(hua)(hua)(hua)劑(ji)能發揮作用應力要(yao)小，精密度(du)才能保持在(zai)(zai)。精密拉(la)(la)(la)(la)伸(shen)(shen)件根據材(cai)料(liao)的(de)(de)(de)(de)(de)不(bu)(bu)同，潤(run)(run)滑(hua)(hua)(hua)劑(ji)可(ke)以選擇的(de)(de)(de)(de)(de)種類(lei)不(bu)(bu)一(yi)樣，比較軟的(de)(de)(de)(de)(de)材(cai)料(liao)如紫銅，可(ke)以硬脂(zhi)酸鋅(xin)與(yu)動物(wu)油(you)(you)(you)配成(cheng)的(de)(de)(de)(de)(de)潤(run)(run)滑(hua)(hua)(hua)劑(ji)，精密拉(la)(la)(la)(la)伸(shen)(shen)件材(cai)料(liao)是(shi)(shi)鐵低(di)碳鋼以前都用磷(lin)化(hua)皂化(hua)工藝在(zai)(zai)材(cai)料(liao)表(biao)面附上一(yi)層潤(run)(run)滑(hua)(hua)(hua)劑(ji)效果非常好，但現(xian)(xian)在(zai)(zai)因為(wei)環境問題都改配方(fang)了(le)，有的(de)(de)(de)(de)(de)用硫(liu)(liu)化(hua)豬油(you)(you)(you)和(he)硫(liu)(liu)化(hua)脂(zhi)肪酸酯為(wei)主劑(ji)調和(he)而成(cheng)，據說效果也還不(bu)(bu)錯，精密拉(la)(la)(la)(la)伸(shen)(shen)件材(cai)料(liao)是(shi)(shi)鋁(lv)材(cai)質的(de)(de)(de)(de)(de)。

使(shi)用沖(chong)(chong)壓設備進行(xing)產品的(de)(de)(de)(de)(de)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)成(cheng)型(xing)加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)，包(bao)括：拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)、再拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)、逆向拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)以(yi)(yi)及(ji)變薄拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)等。拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)：使(shi)用壓板裝(zhuang)置，利用凸模的(de)(de)(de)(de)(de)沖(chong)(chong)壓力，將平板材的(de)(de)(de)(de)(de)一(yi)部分(fen)或者全部拉(la)(la)(la)入凹模型(xing)腔內(nei)，使(shi)之(zhi)成(cheng)形(xing)為帶底的(de)(de)(de)(de)(de)容(rong)器(qi)(qi)。容(rong)器(qi)(qi)的(de)(de)(de)(de)(de)側壁與拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)方向平行(xing)的(de)(de)(de)(de)(de)加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)，是單(dan)純的(de)(de)(de)(de)(de)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)，而對圓錐(zhui)（或角錐(zhui)）形(xing)容(rong)器(qi)(qi)、半球形(xing)容(rong)器(qi)(qi)及(ji)拋物(wu)線面容(rong)器(qi)(qi)等的(de)(de)(de)(de)(de)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)，其中還(huan)包(bao)含擴形(xing)加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)。再拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)：即對一(yi)次(ci)(ci)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)無法完成(cheng)的(de)(de)(de)(de)(de)深(shen)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)產品，需(xu)(xu)要(yao)(yao)將拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)的(de)(de)(de)(de)(de)成(cheng)形(xing)產品進行(xing)再次(ci)(ci)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)，以(yi)(yi)增(zeng)加(jia)成(cheng)形(xing)容(rong)器(qi)(qi)的(de)(de)(de)(de)(de)深(shen)度。在拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)精密五金沖(chong)(chong)壓件加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)過(guo)程中我們還(huan)需(xu)(xu)要(yao)(yao)注意拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)精密五金沖(chong)(chong)壓件各個部分(fen)的(de)(de)(de)(de)(de)尺寸(cun)比例要(yao)(yao)合適，工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)件的(de)(de)(de)(de)(de)設計(ji)過(guo)程中，應盡量避(bi)免出現凸緣，以(yi)(yi)及(ji)深(shen)度較大的(de)(de)(de)(de)(de)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)件。因(yin)為這兩種(zhong)(zhong)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)件，是需(xu)(xu)要(yao)(yao)較多(duo)的(de)(de)(de)(de)(de)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)次(ci)(ci)數的(de)(de)(de)(de)(de)，所以(yi)(yi)從(cong)某種(zhong)(zhong)程度上，是增(zeng)加(jia)了產品成(cheng)本。如(ru)(ru)果工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)件不符合拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)要(yao)(yao)求(qiu)(qiu)的(de)(de)(de)(de)(de)，那(nei)么可以(yi)(yi)通過(guo)分(fen)開(kai)的(de)(de)(de)(de)(de)加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)制造(zao)，來使(shi)其符合工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)要(yao)(yao)求(qiu)(qiu)。然后要(yao)(yao)避(bi)免工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)件的(de)(de)(de)(de)(de)厚度不均勻問(wen)題(ti)，其上面的(de)(de)(de)(de)(de)孔(kong)的(de)(de)(de)(de)(de)位置要(yao)(yao)合理。對于(yu)這兩個工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)件工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)性要(yao)(yao)求(qiu)(qiu)，也(ye)是需(xu)(xu)要(yao)(yao)引(yin)起重視(shi)的(de)(de)(de)(de)(de)。對于(yu)要(yao)(yao)進行(xing)多(duo)次(ci)(ci)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)的(de)(de)(de)(de)(de)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)件，尤其要(yao)(yao)注意了。對于(yu)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)精密五金件的(de)(de)(de)(de)(de)主要(yao)(yao)結構面上的(de)(de)(de)(de)(de)孔(kong)的(de)(de)(de)(de)(de)位置，除了這一(yi)要(yao)(yao)求(qiu)(qiu)外，還(huan)應使(shi)其保持在一(yi)個平面上，以(yi)(yi)避(bi)免出現問(wen)題(ti)。如(ru)(ru)空氣濕度大，空氣質量污染(ran)嚴(yan)重它(ta)很容(rong)易被氧化(hua)。

深圳(zhen)銘豐慶專業銷售精(jing)(jing)(jing)(jing)(jing)密(mi)拉(la)(la)(la)伸(shen)(shen)五(wu)金件(jian)(jian)，如(ru)有(you)(you)需(xu)要，隨時(shi)聯系(xi)我們銘豐慶！精(jing)(jing)(jing)(jing)(jing)密(mi)拉(la)(la)(la)伸(shen)(shen)五(wu)金件(jian)(jian)的(de)(de)(de)模板爆(bao)(bao)裂(lie)(lie)是(shi)很(hen)(hen)常(chang)見的(de)(de)(de)現(xian)象。有(you)(you)時(shi)候嚴(yan)重的(de)(de)(de)話，一個模板一下子分成幾塊。當(dang)然，精(jing)(jing)(jing)(jing)(jing)密(mi)拉(la)(la)(la)伸(shen)(shen)件(jian)(jian)模板直(zhi)接開裂(lie)(lie)的(de)(de)(de)原(yuan)因有(you)(you)很(hen)(hen)多，從模具(ju)(ju)設(she)計中的(de)(de)(de)材(cai)(cai)料采(cai)(cai)購到(dao)沖(chong)(chong)壓(ya)(ya)操(cao)作(zuo)過(guo)程都會影響(xiang)到(dao)。那(nei)么精(jing)(jing)(jing)(jing)(jing)密(mi)拉(la)(la)(la)伸(shen)(shen)件(jian)(jian)模具(ju)(ju)爆(bao)(bao)裂(lie)(lie)的(de)(de)(de)的(de)(de)(de)原(yuan)因是(shi)什么呢？精(jing)(jing)(jing)(jing)(jing)密(mi)拉(la)(la)(la)伸(shen)(shen)件(jian)(jian)模具(ju)(ju)爆(bao)(bao)裂(lie)(lie)的(de)(de)(de)原(yuan)因有(you)(you)五(wu)種：沖(chong)(chong)裁(cai)不(bu)(bu)當(dang)、模具(ju)(ju)設(she)計工(gong)藝(yi)不(bu)(bu)合理、熱處理不(bu)(bu)當(dang)、線切割處理不(bu)(bu)當(dang)以及沖(chong)(chong)壓(ya)(ya)設(she)備選擇不(bu)(bu)當(dang)。另外呢，沖(chong)(chong)壓(ya)(ya)操(cao)作(zuo)人員的(de)(de)(de)生產(chan)操(cao)作(zuo)意(yi)識也很(hen)(hen)重要。如(ru)果操(cao)作(zuo)人員的(de)(de)(de)定位不(bu)(bu)到(dao)位，那(nei)么模板也會有(you)(you)裂(lie)(lie)紋繼續(xu)生產(chan)。為使沖(chong)(chong)壓(ya)(ya)件(jian)(jian)達(da)到(dao)精(jing)(jing)(jing)(jing)(jing)度要求，常(chang)采(cai)(cai)用壓(ya)(ya)在底材(cai)(cai)上的(de)(de)(de)五(wu)金沖(chong)(chong)壓(ya)(ya)折彎模。汕頭(tou)精(jing)(jing)(jing)(jing)(jing)密(mi)拉(la)(la)(la)伸(shen)(shen)五(wu)金件(jian)(jian)4J33連接臺

首先是清(qing)洗劑的質量。有些(xie)清(qing)洗劑混入(ru)了其他雜物，很難達到(dao)清(qing)洗的目地，不清(qing)洗又會引起氧化。鹽田區鐵鎳(nie)合(he)金4J33連接臺加工精(jing)密拉(la)伸五金件(jian)

1、圓(yuan)(yuan)筒(tong)拉(la)(la)(la)(la)伸(shen)(shen)(shen)加(jia)工：帶凸緣(yuan)(法蘭(lan))圓(yuan)(yuan)筒(tong)產(chan)品(pin)的(de)(de)(de)(de)(de)拉(la)(la)(la)(la)伸(shen)(shen)(shen)。法蘭(lan)與底部(bu)均為(wei)平面形(xing)(xing)(xing)(xing)狀(zhuang)，圓(yuan)(yuan)筒(tong)側壁(bi)為(wei)軸(zhou)對(dui)稱，在(zai)同(tong)(tong)一圓(yuan)(yuan)周上(shang)變(bian)(bian)形(xing)(xing)(xing)(xing)均勻分(fen)布(bu)，法蘭(lan)上(shang)毛坯產(chan)生拉(la)(la)(la)(la)深變(bian)(bian)形(xing)(xing)(xing)(xing)。2、橢圓(yuan)(yuan)拉(la)(la)(la)(la)伸(shen)(shen)(shen)加(jia)工：法蘭(lan)上(shang)毛坯的(de)(de)(de)(de)(de)變(bian)(bian)形(xing)(xing)(xing)(xing)為(wei)拉(la)(la)(la)(la)伸(shen)(shen)(shen)變(bian)(bian)形(xing)(xing)(xing)(xing)，但變(bian)(bian)形(xing)(xing)(xing)(xing)量(liang)與變(bian)(bian)形(xing)(xing)(xing)(xing)比(bi)沿輪廓(kuo)形(xing)(xing)(xing)(xing)狀(zhuang)相應變(bian)(bian)化。曲(qu)(qu)率(lv)越(yue)大(da)的(de)(de)(de)(de)(de)部(bu)分(fen)，毛坯的(de)(de)(de)(de)(de)塑性(xing)變(bian)(bian)形(xing)(xing)(xing)(xing)量(liang)就越(yue)大(da);反之，曲(qu)(qu)率(lv)越(yue)小(xiao)(xiao)(xiao)的(de)(de)(de)(de)(de)部(bu)分(fen)，毛坯的(de)(de)(de)(de)(de)塑性(xing)變(bian)(bian)形(xing)(xing)(xing)(xing)越(yue)小(xiao)(xiao)(xiao)。3、矩形(xing)(xing)(xing)(xing)拉(la)(la)(la)(la)伸(shen)(shen)(shen)加(jia)工：一次拉(la)(la)(la)(la)伸(shen)(shen)(shen)成(cheng)形(xing)(xing)(xing)(xing)的(de)(de)(de)(de)(de)低矩形(xing)(xing)(xing)(xing)件。拉(la)(la)(la)(la)伸(shen)(shen)(shen)時(shi)(shi)，凸緣(yuan)變(bian)(bian)形(xing)(xing)(xing)(xing)區圓(yuan)(yuan)角(jiao)處(chu)(chu)的(de)(de)(de)(de)(de)拉(la)(la)(la)(la)伸(shen)(shen)(shen)阻力大(da)于(yu)直邊處(chu)(chu)的(de)(de)(de)(de)(de)拉(la)(la)(la)(la)伸(shen)(shen)(shen)阻力，圓(yuan)(yuan)角(jiao)處(chu)(chu)的(de)(de)(de)(de)(de)變(bian)(bian)形(xing)(xing)(xing)(xing)程(cheng)(cheng)度(du)(du)大(da)于(yu)直邊處(chu)(chu)的(de)(de)(de)(de)(de)變(bian)(bian)形(xing)(xing)(xing)(xing)程(cheng)(cheng)度(du)(du)。4、山形(xing)(xing)(xing)(xing)拉(la)(la)(la)(la)伸(shen)(shen)(shen)加(jia)工：沖(chong)(chong)(chong)壓(ya)(ya)(ya)件的(de)(de)(de)(de)(de)側壁(bi)為(wei)斜面時(shi)(shi)，側壁(bi)在(zai)沖(chong)(chong)(chong)壓(ya)(ya)(ya)過程(cheng)(cheng)中是懸空的(de)(de)(de)(de)(de)，不貼模(mo)，直到(dao)成(cheng)形(xing)(xing)(xing)(xing)結束(shu)時(shi)(shi)才貼模(mo)。成(cheng)形(xing)(xing)(xing)(xing)時(shi)(shi)側壁(bi)的(de)(de)(de)(de)(de)不同(tong)(tong)部(bu)位變(bian)(bian)形(xing)(xing)(xing)(xing)特點不完(wan)全(quan)相同(tong)(tong)。變(bian)(bian)薄(bo)(bo)拉(la)(la)(la)(la)伸(shen)(shen)(shen)加(jia)工：用凸模(mo)將已成(cheng)形(xing)(xing)(xing)(xing)容(rong)器擠入(ru)比(bi)容(rong)器外徑稍小(xiao)(xiao)(xiao)的(de)(de)(de)(de)(de)凹(ao)模(mo)型(xing)腔(qiang)內，使帶底的(de)(de)(de)(de)(de)容(rong)器外徑變(bian)(bian)小(xiao)(xiao)(xiao)，同(tong)(tong)時(shi)(shi)壁(bi)厚(hou)變(bian)(bian)薄(bo)(bo)，既(ji)消除(chu)壁(bi)厚(hou)偏(pian)差，又使容(rong)器表(biao)面光(guang)滑。按照沖(chong)(chong)(chong)壓(ya)(ya)(ya)時(shi)(shi)的(de)(de)(de)(de)(de)溫度(du)(du)情況(kuang)有冷沖(chong)(chong)(chong)壓(ya)(ya)(ya)和(he)熱(re)沖(chong)(chong)(chong)壓(ya)(ya)(ya)兩(liang)種方式(shi)。這取(qu)決(jue)于(yu)精(jing)密(mi)小(xiao)(xiao)(xiao)五金(jin)(jin)拉(la)(la)(la)(la)伸(shen)(shen)(shen)件材料(liao)的(de)(de)(de)(de)(de)強度(du)(du)、厚(hou)度(du)(du)、變(bian)(bian)形(xing)(xing)(xing)(xing)程(cheng)(cheng)度(du)(du)以及(ji)設(she)(she)備能(neng)力等，同(tong)(tong)時(shi)(shi)應考慮材料(liao)的(de)(de)(de)(de)(de)原始熱(re)處(chu)(chu)理狀(zhuang)態和(he)終(zhong)使用條(tiao)件。按照沖(chong)(chong)(chong)壓(ya)(ya)(ya)時(shi)(shi)的(de)(de)(de)(de)(de)溫度(du)(du)情況(kuang)有冷沖(chong)(chong)(chong)壓(ya)(ya)(ya)和(he)熱(re)沖(chong)(chong)(chong)壓(ya)(ya)(ya)兩(liang)種方式(shi)。這取(qu)決(jue)于(yu)精(jing)密(mi)小(xiao)(xiao)(xiao)五金(jin)(jin)拉(la)(la)(la)(la)伸(shen)(shen)(shen)件材料(liao)的(de)(de)(de)(de)(de)強度(du)(du)、厚(hou)度(du)(du)、變(bian)(bian)形(xing)(xing)(xing)(xing)程(cheng)(cheng)度(du)(du)以及(ji)設(she)(she)備能(neng)力等。鹽田區鐵鎳合金(jin)(jin)4J33連接臺(tai)加(jia)工精(jing)密(mi)拉(la)(la)(la)(la)伸(shen)(shen)(shen)五金(jin)(jin)件

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