精密拉伸(shen)沖(chong)壓中(zhong)(zhong)，鋁(lv)(lv)合金(jin)(jin)拉伸(shen)件(jian)(jian)是比較難加工(gong)(gong)(gong)的(de)(de)，但是在加工(gong)(gong)(gong)中(zhong)(zhong)注(zhu)意(yi)某些問題點就可以很順利的(de)(de)完(wan)成加工(gong)(gong)(gong)了(le)。鋁(lv)(lv)合金(jin)(jin)拉伸(shen)件(jian)(jian)加工(gong)(gong)(gong)注(zhu)意(yi)事項有：在取料(liao)(liao)(liao)(liao)(liao)(liao)、移(yi)動、拉伸(shen)中(zhong)(zhong)材(cai)料(liao)(liao)(liao)(liao)(liao)(liao)不(bu)(bu)能(neng)(neng)(neng)相(xiang)互碰擦，堆疊以及纏繞等(deng)，相(xiang)互之(zhi)間要(yao)(yao)留有一(yi)定的(de)(de)空隙。對(dui)容易折彎、出(chu)(chu)料(liao)(liao)(liao)(liao)(liao)(liao)長短的(de)(de)鋁(lv)(lv)合金(jin)(jin)材(cai)料(liao)(liao)(liao)(liao)(liao)(liao)要(yao)(yao)及時處(chu)理。原(yuan)材(cai)料(liao)(liao)(liao)(liao)(liao)(liao)要(yao)(yao)冷卻到(dao)50°以下才能(neng)(neng)(neng)移(yi)到(dao)拉伸(shen)架上(shang)進行拉伸(shen)加工(gong)(gong)(gong)，溫度(du)過(guo)高會燙(tang)到(dao)作業員和燙(tang)壞坯(pi)毛條，也不(bu)(bu)能(neng)(neng)(neng)徹底的(de)(de)消除材(cai)料(liao)(liao)(liao)(liao)(liao)(liao)內應力從(cong)(cong)而產生廢品。由(you)(you)于毛條有阻熱效(xiao)果(guo)，裝飾(shi)外(wai)表(biao)(biao)(biao)(biao)需求高的(de)(de)鋁(lv)(lv)合金(jin)(jin)材(cai)料(liao)(liao)(liao)(liao)(liao)(liao)要(yao)(yao)多翻轉，便于散熱均勻，從(cong)(cong)而減少橫(heng)向亮(liang)斑(ban)。要(yao)(yao)注(zhu)意(yi)寬厚比較高，弧(hu)度(du)大、壁厚細(xi)、形狀奇怪等(deng)鋁(lv)(lv)合金(jin)(jin)材(cai)料(liao)(liao)(liao)(liao)(liao)(liao)的(de)(de)小(xiao)腳、薄齒、長腿、圓弧(hu)面、傾(qing)斜面、開(kai)口(kou)、視點等(deng)受力情況，避(bi)免材(cai)料(liao)(liao)(liao)(liao)(liao)(liao)部分或者點狀尺度(du)變(bian)形、扭曲、螺旋等(deng)。拉伸(shen)量要(yao)(yao)控制在百分之(zhi)一(yi)的(de)(de)擺布，沖(chong)壓過(guo)程(cheng)中(zhong)(zhong)需根據原(yuan)材(cai)料(liao)(liao)(liao)(liao)(liao)(liao)的(de)(de)出(chu)(chu)料(liao)(liao)(liao)(liao)(liao)(liao)實際情況與(yu)各種具(ju)體需求加以調整。在相(xiang)互對(dui)立的(de)(de)技能(neng)(neng)(neng)需求中(zhong)(zhong)尋找滿足(zu)各種具(ju)體需求的(de)(de)拉伸(shen)量。造成表(biao)(biao)(biao)(biao)面劃(hua)痕的(de)(de)因素有：不(bu)(bu)銹鋼(gang)拉伸(shen)件(jian)(jian)的(de)(de)表(biao)(biao)(biao)(biao)面會出(chu)(chu)現(xian)劃(hua)痕是由(you)(you)于工(gong)(gong)(gong)件(jian)(jian)與(yu)模(mo)(mo)具(ju)表(biao)(biao)(biao)(biao)面存(cun)在相(xiang)對(dui)的(de)(de)移(yi)動，在一(yi)定的(de)(de)壓力促使下，導(dao)致(zhi)坯(pi)料(liao)(liao)(liao)(liao)(liao)(liao)和模(mo)(mo)具(ju)局(ju)部表(biao)(biao)(biao)(biao)面直(zhi)接產生摩擦，加之(zhi)坯(pi)料(liao)(liao)(liao)(liao)(liao)(liao)的(de)(de)變(bian)形熱使得坯(pi)料(liao)(liao)(liao)(liao)(liao)(liao)和金(jin)(jin)屑熔蓋在模(mo)(mo)具(ju)的(de)(de)表(biao)(biao)(biao)(biao)面上(shang)，使工(gong)(gong)(gong)件(jian)(jian)外(wai)表(biao)(biao)(biao)(biao)擦傷(shang)產生劃(hua)痕。

較軟的材料(liao)在沖壓(ya)后具有(you)較小的彈(dan)性變形和較小的彈(dan)性回(hui)復(fu)率，這使得零件更加精確。鹽田(tian)區鐵鎳(nie)合金(jin)4J33連接(jie)臺加工精密拉伸五金(jin)件

深(shen)(shen)(shen)錐形(xing)(xing)(xing)件(jian)(jian)(jian)由(you)于(yu)(yu)深(shen)(shen)(shen)度(du)(du)(du)變(bian)形(xing)(xing)(xing)程(cheng)(cheng)度(du)(du)(du)較大，極易引起坯(pi)(pi)料局部(bu)(bu)(bu)過(guo)度(du)(du)(du)變(bian)薄(bo)乃(nai)至破裂(lie)，需要(yao)(yao)經過(guo)多次過(guo)渡逐漸成形(xing)(xing)(xing)多次拉(la)(la)伸(shen)(shen)(shen)(shen)成形(xing)(xing)(xing)的(de)(de)(de)(de)高矩(ju)形(xing)(xing)(xing)件(jian)(jian)(jian)，其變(bian)形(xing)(xing)(xing)不僅(jin)與(yu)(yu)深(shen)(shen)(shen)圓(yuan)筒形(xing)(xing)(xing)件(jian)(jian)(jian)的(de)(de)(de)(de)拉(la)(la)伸(shen)(shen)(shen)(shen)不同(tong)，與(yu)(yu)低盒(he)形(xing)(xing)(xing)件(jian)(jian)(jian)的(de)(de)(de)(de)變(bian)形(xing)(xing)(xing)也有很(hen)大差(cha)別曲面(mian)(mian)拉(la)(la)伸(shen)(shen)(shen)(shen)成形(xing)(xing)(xing)，使金屬(shu)平板(ban)坯(pi)(pi)料外法(fa)(fa)蘭部(bu)(bu)(bu)分(fen)縮小，內法(fa)(fa)蘭部(bu)(bu)(bu)分(fen)伸(shen)(shen)(shen)(shen)長，成為(wei)非(fei)直壁(bi)非(fei)平底的(de)(de)(de)(de)曲面(mian)(mian)形(xing)(xing)(xing)狀(zhuang)的(de)(de)(de)(de)沖(chong)壓成形(xing)(xing)(xing)方法(fa)(fa)將初(chu)拉(la)(la)伸(shen)(shen)(shen)(shen)進行再(zai)(zai)拉(la)(la)伸(shen)(shen)(shen)(shen)成形(xing)(xing)(xing)為(wei)臺階形(xing)(xing)(xing)底部(bu)(bu)(bu)。深(shen)(shen)(shen)度(du)(du)(du)較深(shen)(shen)(shen)的(de)(de)(de)(de)部(bu)(bu)(bu)分(fen)在(zai)(zai)拉(la)(la)伸(shen)(shen)(shen)(shen)成形(xing)(xing)(xing)的(de)(de)(de)(de)初(chu)期就(jiu)產生變(bian)形(xing)(xing)(xing)，深(shen)(shen)(shen)度(du)(du)(du)較淺(qian)的(de)(de)(de)(de)部(bu)(bu)(bu)分(fen)在(zai)(zai)拉(la)(la)伸(shen)(shen)(shen)(shen)的(de)(de)(de)(de)后期產生變(bian)形(xing)(xing)(xing)與(yu)(yu)普通(tong)拉(la)(la)伸(shen)(shen)(shen)(shen)不同(tong)，變(bian)薄(bo)拉(la)(la)伸(shen)(shen)(shen)(shen)主(zhu)要(yao)(yao)是在(zai)(zai)拉(la)(la)伸(shen)(shen)(shen)(shen)過(guo)程(cheng)(cheng)中(zhong)(zhong)改變(bian)拉(la)(la)伸(shen)(shen)(shen)(shen)件(jian)(jian)(jian)筒壁(bi)的(de)(de)(de)(de)厚(hou)(hou)(hou)度(du)(du)(du)。變(bian)薄(bo)拉(la)(la)伸(shen)(shen)(shen)(shen)加工(gong)（Ironing）：與(yu)(yu)普通(tong)拉(la)(la)伸(shen)(shen)(shen)(shen)不同(tong)，變(bian)薄(bo)拉(la)(la)伸(shen)(shen)(shen)(shen)主(zhu)要(yao)(yao)是在(zai)(zai)拉(la)(la)伸(shen)(shen)(shen)(shen)過(guo)程(cheng)(cheng)中(zhong)(zhong)改變(bian)拉(la)(la)伸(shen)(shen)(shen)(shen)件(jian)(jian)(jian)筒壁(bi)的(de)(de)(de)(de)厚(hou)(hou)(hou)度(du)(du)(du)。凸凹模之間的(de)(de)(de)(de)間隙小于(yu)(yu)毛(mao)坯(pi)(pi)厚(hou)(hou)(hou)度(du)(du)(du)，毛(mao)坯(pi)(pi)直壁(bi)部(bu)(bu)(bu)分(fen)在(zai)(zai)通(tong)過(guo)間隙時(shi)(shi)，處于(yu)(yu)較大的(de)(de)(de)(de)均勻壓應力之下(xia)，拉(la)(la)伸(shen)(shen)(shen)(shen)過(guo)程(cheng)(cheng)中(zhong)(zhong)壁(bi)厚(hou)(hou)(hou)變(bian)薄(bo)的(de)(de)(de)(de)同(tong)時(shi)(shi)，消(xiao)除(chu)容器壁(bi)厚(hou)(hou)(hou)偏差(cha)，增(zeng)加容器表面(mian)(mian)的(de)(de)(de)(de)光滑度(du)(du)(du)，提高精(jing)度(du)(du)(du)和強(qiang)度(du)(du)(du)面(mian)(mian)板(ban)拉(la)(la)伸(shen)(shen)(shen)(shen)加工(gong)（Paneldrawing）：面(mian)(mian)板(ban)產品是板(ban)材(cai)沖(chong)壓件(jian)(jian)(jian)，表面(mian)(mian)形(xing)(xing)(xing)狀(zhuang)復雜。在(zai)(zai)拉(la)(la)伸(shen)(shen)(shen)(shen)工(gong)序中(zhong)(zhong)，毛(mao)坯(pi)(pi)變(bian)形(xing)(xing)(xing)復雜，其成形(xing)(xing)(xing)性質已非(fei)簡單的(de)(de)(de)(de)拉(la)(la)伸(shen)(shen)(shen)(shen)成形(xing)(xing)(xing)，而(er)是拉(la)(la)深(shen)(shen)(shen)與(yu)(yu)脹形(xing)(xing)(xing)同(tong)時(shi)(shi)存(cun)在(zai)(zai)的(de)(de)(de)(de)復合成形(xing)(xing)(xing)。矩(ju)形(xing)(xing)(xing)再(zai)(zai)拉(la)(la)伸(shen)(shen)(shen)(shen)加工(gong)（Rectangularredrawing）：多次拉(la)(la)伸(shen)(shen)(shen)(shen)成形(xing)(xing)(xing)的(de)(de)(de)(de)高矩(ju)形(xing)(xing)(xing)件(jian)(jian)(jian)，其變(bian)形(xing)(xing)(xing)不僅(jin)與(yu)(yu)深(shen)(shen)(shen)圓(yuan)筒形(xing)(xing)(xing)件(jian)(jian)(jian)的(de)(de)(de)(de)拉(la)(la)伸(shen)(shen)(shen)(shen)不同(tong)，與(yu)(yu)低盒(he)形(xing)(xing)(xing)件(jian)(jian)(jian)的(de)(de)(de)(de)變(bian)形(xing)(xing)(xing)也有很(hen)大差(cha)別。精(jing)密(mi)拉(la)(la)伸(shen)(shen)(shen)(shen)五金件(jian)(jian)(jian)加工(gong)除(chu)了以上兩(liang)個(ge)方面(mian)(mian)，解(jie)決沖(chong)壓件(jian)(jian)(jian)清(qing)洗(xi)問題還需要(yao)(yao)注(zhu)意哪(na)些問題呢？

毛坯與凸凹(ao)(ao)模(mo)(mo)中(zhong)心不合或五(wu)金(jin)拉(la)(la)深(shen)件(jian)(jian)(jian)沖(chong)壓(ya)材(cai)(cai)料厚(hou)度不均勻(yun)(yun)，以及凹(ao)(ao)模(mo)(mo)圓(yuan)角半(ban)徑和凸凹(ao)(ao)模(mo)(mo)間隙(xi)不均勻(yun)(yun)，凹(ao)(ao)模(mo)(mo)圓(yuan)角半(ban)徑太大，在(zai)拉(la)(la)深(shen)階(jie)段脫離了壓(ya)邊(bian)(bian)圈，使尚未(wei)越(yue)過圓(yuan)角的(de)(de)材(cai)(cai)料壓(ya)邊(bian)(bian)圈壓(ya)不到起皺后(hou)(hou)被拉(la)(la)入凹(ao)(ao)模(mo)(mo)形(xing)成(cheng)口(kou)緣褶皺。五(wu)金(jin)拉(la)(la)深(shen)件(jian)(jian)(jian)邊(bian)(bian)緣不平對策：五(wu)金(jin)拉(la)(la)深(shen)件(jian)(jian)(jian)沖(chong)模(mo)(mo)重新定(ding)位，校正(zheng)凹(ao)(ao)模(mo)(mo)圓(yuan)角半(ban)徑和凸凹(ao)(ao)模(mo)(mo)間隙(xi)使其大小(xiao)均勻(yun)(yun)后(hou)(hou)再(zai)投(tou)入生產(chan)減(jian)少凹(ao)(ao)模(mo)(mo)圓(yuan)角半(ban)徑或采用(yong)(yong)弧形(xing)壓(ya)邊(bian)(bian)圈裝置即可消除褶皺。為什么有的(de)(de)拉(la)(la)伸(shen)(shen)(shen)件(jian)(jian)(jian)廠(chang)家沖(chong)壓(ya)出來的(de)(de)不銹鋼(gang)拉(la)(la)深(shen)件(jian)(jian)(jian)表(biao)面(mian)那(nei)么光滑(hua)(hua)，無劃(hua)痕(hen)？有的(de)(de)生產(chan)出來的(de)(de)工(gong)件(jian)(jian)(jian)卻是大批(pi)量的(de)(de)出現(xian)劃(hua)痕(hen)。經(jing)過工(gong)程(cheng)師分析發現(xian)，不銹鋼(gang)拉(la)(la)深(shen)件(jian)(jian)(jian)表(biao)出現(xian)的(de)(de)那(nei)些(xie)劃(hua)痕(hen)是在(zai)沖(chong)壓(ya)移(yi)滑(hua)(hua)的(de)(de)過程(cheng)中(zhong)造成(cheng)的(de)(de)。該怎(zen)么防止(zhi)出現(xian)劃(hua)痕(hen)呢？改變滑(hua)(hua)移(yi)時(shi)的(de)(de)摩擦(ca)狀態(tai)(tai)。可以用(yong)(yong)液態(tai)(tai)潤滑(hua)(hua)、涂油覆膜、噴涂刷油以及凹(ao)(ao)模(mo)(mo)強制(zhi)潤液等涂抹方式(shi)。精(jing)(jing)密(mi)(mi)(mi)拉(la)(la)伸(shen)(shen)(shen)件(jian)(jian)(jian)就必(bi)須保證(zheng)潤滑(hua)(hua)劑能(neng)(neng)發揮作(zuo)用(yong)(yong)應力要小(xiao)，精(jing)(jing)密(mi)(mi)(mi)度才(cai)能(neng)(neng)保持在(zai)。精(jing)(jing)密(mi)(mi)(mi)拉(la)(la)伸(shen)(shen)(shen)件(jian)(jian)(jian)根據材(cai)(cai)料的(de)(de)不同(tong)，潤滑(hua)(hua)劑可以選(xuan)擇的(de)(de)種類不一(yi)(yi)樣，比較軟的(de)(de)材(cai)(cai)料如紫銅，可以硬(ying)脂(zhi)酸鋅(xin)與動物油配成(cheng)的(de)(de)潤滑(hua)(hua)劑，精(jing)(jing)密(mi)(mi)(mi)拉(la)(la)伸(shen)(shen)(shen)件(jian)(jian)(jian)材(cai)(cai)料是鐵低碳鋼(gang)以前都(dou)用(yong)(yong)磷化(hua)皂化(hua)工(gong)藝在(zai)材(cai)(cai)料表(biao)面(mian)附上一(yi)(yi)層潤滑(hua)(hua)劑效果非常好，但(dan)現(xian)在(zai)因為環境(jing)問題都(dou)改配方了，有的(de)(de)用(yong)(yong)硫化(hua)豬油和硫化(hua)脂(zhi)肪酸酯(zhi)為主劑調(diao)和而成(cheng)，據說效果也還不錯(cuo)，精(jing)(jing)密(mi)(mi)(mi)拉(la)(la)伸(shen)(shen)(shen)件(jian)(jian)(jian)材(cai)(cai)料是鋁材(cai)(cai)質的(de)(de)。

使用(yong)沖(chong)壓(ya)(ya)(ya)設備進(jin)(jin)行(xing)產品的(de)(de)(de)拉(la)(la)(la)伸(shen)(shen)(shen)成型加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，包括：拉(la)(la)(la)伸(shen)(shen)(shen)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)、再(zai)拉(la)(la)(la)伸(shen)(shen)(shen)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)、逆向拉(la)(la)(la)伸(shen)(shen)(shen)以(yi)及(ji)變薄拉(la)(la)(la)伸(shen)(shen)(shen)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)等。拉(la)(la)(la)伸(shen)(shen)(shen)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)：使用(yong)壓(ya)(ya)(ya)板裝(zhuang)置(zhi)(zhi)，利(li)用(yong)凸模的(de)(de)(de)沖(chong)壓(ya)(ya)(ya)力(li)，將平板材的(de)(de)(de)一(yi)部分(fen)(fen)或(huo)者(zhe)全部拉(la)(la)(la)入凹(ao)模型腔內，使之(zhi)成形(xing)(xing)為帶底(di)的(de)(de)(de)容(rong)(rong)器(qi)。容(rong)(rong)器(qi)的(de)(de)(de)側壁與拉(la)(la)(la)伸(shen)(shen)(shen)方向平行(xing)的(de)(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，是單純的(de)(de)(de)拉(la)(la)(la)伸(shen)(shen)(shen)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，而對(dui)圓(yuan)錐(zhui)（或(huo)角錐(zhui)）形(xing)(xing)容(rong)(rong)器(qi)、半球形(xing)(xing)容(rong)(rong)器(qi)及(ji)拋物線(xian)面(mian)容(rong)(rong)器(qi)等的(de)(de)(de)拉(la)(la)(la)伸(shen)(shen)(shen)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，其中(zhong)還(huan)包含(han)擴形(xing)(xing)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)。再(zai)拉(la)(la)(la)伸(shen)(shen)(shen)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)：即對(dui)一(yi)次(ci)拉(la)(la)(la)伸(shen)(shen)(shen)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)無(wu)法完成的(de)(de)(de)深拉(la)(la)(la)伸(shen)(shen)(shen)產品，需(xu)要(yao)將拉(la)(la)(la)伸(shen)(shen)(shen)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)的(de)(de)(de)成形(xing)(xing)產品進(jin)(jin)行(xing)再(zai)次(ci)拉(la)(la)(la)伸(shen)(shen)(shen)，以(yi)增加(jia)(jia)成形(xing)(xing)容(rong)(rong)器(qi)的(de)(de)(de)深度。在拉(la)(la)(la)伸(shen)(shen)(shen)精(jing)密五(wu)金沖(chong)壓(ya)(ya)(ya)件(jian)(jian)(jian)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)過程(cheng)中(zhong)我們還(huan)需(xu)要(yao)注(zhu)(zhu)意(yi)拉(la)(la)(la)伸(shen)(shen)(shen)精(jing)密五(wu)金沖(chong)壓(ya)(ya)(ya)件(jian)(jian)(jian)各個(ge)部分(fen)(fen)的(de)(de)(de)尺(chi)寸比例要(yao)合適，工(gong)(gong)(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)的(de)(de)(de)設計過程(cheng)中(zhong)，應(ying)盡量避免出(chu)現(xian)凸緣(yuan)，以(yi)及(ji)深度較大的(de)(de)(de)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)。因為這兩(liang)種工(gong)(gong)(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)，是需(xu)要(yao)較多的(de)(de)(de)拉(la)(la)(la)伸(shen)(shen)(shen)次(ci)數的(de)(de)(de)，所以(yi)從某種程(cheng)度上(shang)，是增加(jia)(jia)了產品成本(ben)。如果(guo)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)不符(fu)合拉(la)(la)(la)伸(shen)(shen)(shen)要(yao)求的(de)(de)(de)，那(nei)么可(ke)以(yi)通過分(fen)(fen)開的(de)(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)制(zhi)造(zao)，來使其符(fu)合工(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝要(yao)求。然(ran)后要(yao)避免工(gong)(gong)(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)的(de)(de)(de)厚度不均勻問題，其上(shang)面(mian)的(de)(de)(de)孔的(de)(de)(de)位置(zhi)(zhi)要(yao)合理。對(dui)于(yu)(yu)這兩(liang)個(ge)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝性要(yao)求，也是需(xu)要(yao)引起(qi)重視的(de)(de)(de)。對(dui)于(yu)(yu)要(yao)進(jin)(jin)行(xing)多次(ci)拉(la)(la)(la)伸(shen)(shen)(shen)的(de)(de)(de)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)，尤其要(yao)注(zhu)(zhu)意(yi)了。對(dui)于(yu)(yu)拉(la)(la)(la)伸(shen)(shen)(shen)精(jing)密五(wu)金件(jian)(jian)(jian)的(de)(de)(de)主要(yao)結構面(mian)上(shang)的(de)(de)(de)孔的(de)(de)(de)位置(zhi)(zhi)，除了這一(yi)要(yao)求外，還(huan)應(ying)使其保持在一(yi)個(ge)平面(mian)上(shang)，以(yi)避免出(chu)現(xian)問題。如空氣濕(shi)度大，空氣質量污染嚴重它很容(rong)(rong)易被氧化。

深圳銘豐慶專業銷售精密(mi)拉(la)伸五(wu)(wu)(wu)金(jin)(jin)件，如(ru)有(you)(you)需要(yao)，隨時(shi)(shi)聯系(xi)我(wo)們銘豐慶！精密(mi)拉(la)伸五(wu)(wu)(wu)金(jin)(jin)件的(de)(de)模(mo)(mo)(mo)(mo)(mo)板爆裂(lie)是很常見(jian)的(de)(de)現(xian)象。有(you)(you)時(shi)(shi)候嚴重(zhong)(zhong)的(de)(de)話，一個模(mo)(mo)(mo)(mo)(mo)板一下子分成幾塊。當(dang)然，精密(mi)拉(la)伸件模(mo)(mo)(mo)(mo)(mo)板直(zhi)接開裂(lie)的(de)(de)原因有(you)(you)很多(duo)，從模(mo)(mo)(mo)(mo)(mo)具設(she)(she)計中的(de)(de)材(cai)料采(cai)(cai)購(gou)到(dao)沖(chong)壓(ya)操作(zuo)(zuo)過程都會(hui)影響到(dao)。那么精密(mi)拉(la)伸件模(mo)(mo)(mo)(mo)(mo)具爆裂(lie)的(de)(de)的(de)(de)原因是什(shen)么呢？精密(mi)拉(la)伸件模(mo)(mo)(mo)(mo)(mo)具爆裂(lie)的(de)(de)原因有(you)(you)五(wu)(wu)(wu)種：沖(chong)裁(cai)不(bu)(bu)(bu)當(dang)、模(mo)(mo)(mo)(mo)(mo)具設(she)(she)計工藝不(bu)(bu)(bu)合理、熱處(chu)理不(bu)(bu)(bu)當(dang)、線(xian)切割(ge)處(chu)理不(bu)(bu)(bu)當(dang)以及(ji)沖(chong)壓(ya)設(she)(she)備(bei)選擇不(bu)(bu)(bu)當(dang)。另外呢，沖(chong)壓(ya)操作(zuo)(zuo)人(ren)(ren)員的(de)(de)生產操作(zuo)(zuo)意(yi)識也很重(zhong)(zhong)要(yao)。如(ru)果操作(zuo)(zuo)人(ren)(ren)員的(de)(de)定(ding)位(wei)不(bu)(bu)(bu)到(dao)位(wei)，那么模(mo)(mo)(mo)(mo)(mo)板也會(hui)有(you)(you)裂(lie)紋繼續生產。為使沖(chong)壓(ya)件達到(dao)精度要(yao)求(qiu)，常采(cai)(cai)用壓(ya)在底(di)材(cai)上的(de)(de)五(wu)(wu)(wu)金(jin)(jin)沖(chong)壓(ya)折彎(wan)模(mo)(mo)(mo)(mo)(mo)。汕頭精密(mi)拉(la)伸五(wu)(wu)(wu)金(jin)(jin)件4J33連接臺

首先(xian)是(shi)清洗劑(ji)的質量。有些清洗劑(ji)混(hun)入了其他雜物，很難達到清洗的目(mu)地，不(bu)清洗又會引(yin)起氧化。鹽田區鐵(tie)鎳合金4J33連接臺加工精密拉伸(shen)五金件

1、圓(yuan)(yuan)筒(tong)拉(la)(la)伸(shen)(shen)加(jia)工(gong)(gong)：帶(dai)凸(tu)(tu)緣(法(fa)蘭)圓(yuan)(yuan)筒(tong)產品的(de)(de)(de)拉(la)(la)伸(shen)(shen)。法(fa)蘭與(yu)底(di)部(bu)均(jun)為(wei)平面(mian)(mian)形(xing)(xing)(xing)(xing)(xing)狀，圓(yuan)(yuan)筒(tong)側壁(bi)為(wei)軸對稱，在同(tong)一(yi)(yi)圓(yuan)(yuan)周上(shang)變(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)均(jun)勻分布(bu)，法(fa)蘭上(shang)毛(mao)坯(pi)(pi)產生拉(la)(la)深變(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)。2、橢圓(yuan)(yuan)拉(la)(la)伸(shen)(shen)加(jia)工(gong)(gong)：法(fa)蘭上(shang)毛(mao)坯(pi)(pi)的(de)(de)(de)變(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)為(wei)拉(la)(la)伸(shen)(shen)變(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)，但(dan)變(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)量與(yu)變(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)比沿輪廓形(xing)(xing)(xing)(xing)(xing)狀相應變(bian)(bian)(bian)化。曲(qu)率(lv)越(yue)大(da)的(de)(de)(de)部(bu)分，毛(mao)坯(pi)(pi)的(de)(de)(de)塑性變(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)量就越(yue)大(da);反之，曲(qu)率(lv)越(yue)小(xiao)(xiao)的(de)(de)(de)部(bu)分，毛(mao)坯(pi)(pi)的(de)(de)(de)塑性變(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)越(yue)小(xiao)(xiao)。3、矩(ju)形(xing)(xing)(xing)(xing)(xing)拉(la)(la)伸(shen)(shen)加(jia)工(gong)(gong)：一(yi)(yi)次(ci)拉(la)(la)伸(shen)(shen)成(cheng)(cheng)(cheng)形(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)低矩(ju)形(xing)(xing)(xing)(xing)(xing)件(jian)(jian)。拉(la)(la)伸(shen)(shen)時(shi)(shi)，凸(tu)(tu)緣變(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)區(qu)圓(yuan)(yuan)角處(chu)(chu)的(de)(de)(de)拉(la)(la)伸(shen)(shen)阻力(li)大(da)于直(zhi)邊處(chu)(chu)的(de)(de)(de)拉(la)(la)伸(shen)(shen)阻力(li)，圓(yuan)(yuan)角處(chu)(chu)的(de)(de)(de)變(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)程度(du)(du)大(da)于直(zhi)邊處(chu)(chu)的(de)(de)(de)變(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)程度(du)(du)。4、山(shan)形(xing)(xing)(xing)(xing)(xing)拉(la)(la)伸(shen)(shen)加(jia)工(gong)(gong)：沖(chong)(chong)壓(ya)(ya)件(jian)(jian)的(de)(de)(de)側壁(bi)為(wei)斜(xie)面(mian)(mian)時(shi)(shi)，側壁(bi)在沖(chong)(chong)壓(ya)(ya)過程中是懸(xuan)空的(de)(de)(de)，不(bu)貼模，直(zhi)到成(cheng)(cheng)(cheng)形(xing)(xing)(xing)(xing)(xing)結束時(shi)(shi)才貼模。成(cheng)(cheng)(cheng)形(xing)(xing)(xing)(xing)(xing)時(shi)(shi)側壁(bi)的(de)(de)(de)不(bu)同(tong)部(bu)位變(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)特點不(bu)完全(quan)相同(tong)。變(bian)(bian)(bian)薄拉(la)(la)伸(shen)(shen)加(jia)工(gong)(gong)：用凸(tu)(tu)模將已成(cheng)(cheng)(cheng)形(xing)(xing)(xing)(xing)(xing)容(rong)器擠入比容(rong)器外徑(jing)稍(shao)小(xiao)(xiao)的(de)(de)(de)凹模型腔內，使帶(dai)底(di)的(de)(de)(de)容(rong)器外徑(jing)變(bian)(bian)(bian)小(xiao)(xiao)，同(tong)時(shi)(shi)壁(bi)厚(hou)(hou)變(bian)(bian)(bian)薄，既消除(chu)壁(bi)厚(hou)(hou)偏差，又使容(rong)器表面(mian)(mian)光滑。按照沖(chong)(chong)壓(ya)(ya)時(shi)(shi)的(de)(de)(de)溫度(du)(du)情況(kuang)有冷(leng)沖(chong)(chong)壓(ya)(ya)和(he)(he)熱沖(chong)(chong)壓(ya)(ya)兩種方式(shi)。這(zhe)取決于精密小(xiao)(xiao)五金(jin)拉(la)(la)伸(shen)(shen)件(jian)(jian)材(cai)料的(de)(de)(de)強(qiang)度(du)(du)、厚(hou)(hou)度(du)(du)、變(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)程度(du)(du)以及(ji)設備能力(li)等(deng)，同(tong)時(shi)(shi)應考慮(lv)材(cai)料的(de)(de)(de)原始熱處(chu)(chu)理狀態和(he)(he)終(zhong)使用條件(jian)(jian)。按照沖(chong)(chong)壓(ya)(ya)時(shi)(shi)的(de)(de)(de)溫度(du)(du)情況(kuang)有冷(leng)沖(chong)(chong)壓(ya)(ya)和(he)(he)熱沖(chong)(chong)壓(ya)(ya)兩種方式(shi)。這(zhe)取決于精密小(xiao)(xiao)五金(jin)拉(la)(la)伸(shen)(shen)件(jian)(jian)材(cai)料的(de)(de)(de)強(qiang)度(du)(du)、厚(hou)(hou)度(du)(du)、變(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)程度(du)(du)以及(ji)設備能力(li)等(deng)。鹽(yan)田(tian)區(qu)鐵鎳合金(jin)4J33連接臺加(jia)工(gong)(gong)精密拉(la)(la)伸(shen)(shen)五金(jin)件(jian)(jian)

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