精密拉(la)伸(shen)(shen)冲(chong)(chong)压中(zhong)，铝合(he)金(jin)(jin)(jin)拉(la)伸(shen)(shen)件(jian)是比(bi)较(jiao)(jiao)难加工(gong)(gong)的(de)(de)(de)(de)，但(dan)是在(zai)(zai)加工(gong)(gong)中(zhong)注意(yi)某些问题点(dian)(dian)就可(ke)以(yi)很顺利的(de)(de)(de)(de)完(wan)成(cheng)加工(gong)(gong)了。铝合(he)金(jin)(jin)(jin)拉(la)伸(shen)(shen)件(jian)加工(gong)(gong)注意(yi)事项(xiang)有：在(zai)(zai)取料(liao)(liao)、移(yi)动、拉(la)伸(shen)(shen)中(zhong)材料(liao)(liao)不(bu)能(neng)相(xiang)(xiang)互(hu)碰擦，堆叠以(yi)及(ji)缠绕等，相(xiang)(xiang)互(hu)之(zhi)间(jian)要(yao)(yao)(yao)留有一定(ding)的(de)(de)(de)(de)空隙。对容(rong)易(yi)折弯、出料(liao)(liao)长短的(de)(de)(de)(de)铝合(he)金(jin)(jin)(jin)材料(liao)(liao)要(yao)(yao)(yao)及(ji)时处理。原材料(liao)(liao)要(yao)(yao)(yao)冷却到50°以(yi)下才能(neng)移(yi)到拉(la)伸(shen)(shen)架(jia)上(shang)进行拉(la)伸(shen)(shen)加工(gong)(gong)，温度过高(gao)会(hui)烫到作业(ye)员和(he)烫坏坯(pi)(pi)(pi)毛条(tiao)，也不(bu)能(neng)彻底(di)的(de)(de)(de)(de)消除(chu)材料(liao)(liao)内(nei)应力(li)从(cong)而产(chan)生废品。由(you)于毛条(tiao)有阻热(re)效果，装饰(shi)外表(biao)(biao)(biao)需(xu)(xu)求(qiu)(qiu)高(gao)的(de)(de)(de)(de)铝合(he)金(jin)(jin)(jin)材料(liao)(liao)要(yao)(yao)(yao)多翻转，便于散热(re)均匀，从(cong)而减少(shao)横向亮斑。要(yao)(yao)(yao)注意(yi)宽厚(hou)比(bi)较(jiao)(jiao)高(gao)，弧(hu)度大、壁厚(hou)细、形(xing)状奇(qi)怪等铝合(he)金(jin)(jin)(jin)材料(liao)(liao)的(de)(de)(de)(de)小脚、薄齿(chi)、长腿(tui)、圆弧(hu)面(mian)、倾(qing)斜面(mian)、开口、视点(dian)(dian)等受力(li)情况(kuang)，避免材料(liao)(liao)部(bu)分或(huo)者点(dian)(dian)状尺度变形(xing)、扭曲(qu)、螺旋(xuan)等。拉(la)伸(shen)(shen)量(liang)(liang)要(yao)(yao)(yao)控制在(zai)(zai)百分之(zhi)一的(de)(de)(de)(de)摆(bai)布，冲(chong)(chong)压过程中(zhong)需(xu)(xu)根(gen)据(ju)原材料(liao)(liao)的(de)(de)(de)(de)出料(liao)(liao)实际情况(kuang)与各(ge)种具(ju)(ju)体需(xu)(xu)求(qiu)(qiu)加以(yi)调整。在(zai)(zai)相(xiang)(xiang)互(hu)对立的(de)(de)(de)(de)技能(neng)需(xu)(xu)求(qiu)(qiu)中(zhong)寻找满(man)足各(ge)种具(ju)(ju)体需(xu)(xu)求(qiu)(qiu)的(de)(de)(de)(de)拉(la)伸(shen)(shen)量(liang)(liang)。造(zao)成(cheng)表(biao)(biao)(biao)面(mian)划(hua)痕的(de)(de)(de)(de)因素有：不(bu)锈(xiu)钢拉(la)伸(shen)(shen)件(jian)的(de)(de)(de)(de)表(biao)(biao)(biao)面(mian)会(hui)出现划(hua)痕是由(you)于工(gong)(gong)件(jian)与模具(ju)(ju)表(biao)(biao)(biao)面(mian)存在(zai)(zai)相(xiang)(xiang)对的(de)(de)(de)(de)移(yi)动，在(zai)(zai)一定(ding)的(de)(de)(de)(de)压力(li)促(cu)使下，导致坯(pi)(pi)(pi)料(liao)(liao)和(he)模具(ju)(ju)局部(bu)表(biao)(biao)(biao)面(mian)直接产(chan)生摩(mo)擦，加之(zhi)坯(pi)(pi)(pi)料(liao)(liao)的(de)(de)(de)(de)变形(xing)热(re)使得坯(pi)(pi)(pi)料(liao)(liao)和(he)金(jin)(jin)(jin)屑熔盖在(zai)(zai)模具(ju)(ju)的(de)(de)(de)(de)表(biao)(biao)(biao)面(mian)上(shang)，使工(gong)(gong)件(jian)外表(biao)(biao)(biao)擦伤(shang)产(chan)生划(hua)痕。

较(jiao)软(ruan)的(de)材料在(zai)冲压后具(ju)有较(jiao)小的(de)弹性变形和(he)较(jiao)小的(de)弹性回(hui)复率，这(zhei)使得(de)零(ling)件(jian)更(geng)加精(jing)确。盐田区铁镍(nie)合金4J33连(lian)接台加工精(jing)密(mi)拉伸五金件(jian)

深(shen)(shen)锥形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)件(jian)(jian)由于(yu)深(shen)(shen)度变(bian)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)程(cheng)(cheng)(cheng)度较大(da)，极易(yi)引起坯(pi)料(liao)局部(bu)过(guo)(guo)度变(bian)薄(bo)(bo)乃至破裂，需要(yao)(yao)(yao)经(jing)过(guo)(guo)多次(ci)过(guo)(guo)渡逐渐成(cheng)(cheng)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)多次(ci)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)(shen)(shen)成(cheng)(cheng)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)的(de)(de)高矩(ju)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)件(jian)(jian)，其变(bian)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)不仅与(yu)(yu)(yu)深(shen)(shen)圆筒(tong)(tong)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)件(jian)(jian)的(de)(de)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)(shen)(shen)不同(tong)，与(yu)(yu)(yu)低盒形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)件(jian)(jian)的(de)(de)变(bian)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)也有很大(da)差(cha)别曲面(mian)(mian)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)(shen)(shen)成(cheng)(cheng)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)，使金属平板坯(pi)料(liao)外法(fa)兰(lan)部(bu)分(fen)缩小(xiao)，内法(fa)兰(lan)部(bu)分(fen)伸(shen)(shen)(shen)(shen)(shen)(shen)(shen)(shen)长，成(cheng)(cheng)为非直(zhi)壁非平底的(de)(de)曲面(mian)(mian)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)状(zhuang)的(de)(de)冲(chong)(chong)压成(cheng)(cheng)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)方(fang)法(fa)将初拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)(shen)(shen)进行再拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)(shen)(shen)成(cheng)(cheng)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)为台阶形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)底部(bu)。深(shen)(shen)度较深(shen)(shen)的(de)(de)部(bu)分(fen)在(zai)(zai)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)(shen)(shen)成(cheng)(cheng)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)的(de)(de)初期就产生变(bian)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)，深(shen)(shen)度较浅的(de)(de)部(bu)分(fen)在(zai)(zai)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)(shen)(shen)的(de)(de)后期产生变(bian)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)与(yu)(yu)(yu)普通(tong)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)(shen)(shen)不同(tong)，变(bian)薄(bo)(bo)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)(shen)(shen)主要(yao)(yao)(yao)是(shi)在(zai)(zai)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)(shen)(shen)过(guo)(guo)程(cheng)(cheng)(cheng)中(zhong)改变(bian)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)(shen)(shen)件(jian)(jian)筒(tong)(tong)壁的(de)(de)厚(hou)(hou)(hou)度。变(bian)薄(bo)(bo)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)(shen)(shen)加(jia)工（Ironing）：与(yu)(yu)(yu)普通(tong)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)(shen)(shen)不同(tong)，变(bian)薄(bo)(bo)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)(shen)(shen)主要(yao)(yao)(yao)是(shi)在(zai)(zai)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)(shen)(shen)过(guo)(guo)程(cheng)(cheng)(cheng)中(zhong)改变(bian)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)(shen)(shen)件(jian)(jian)筒(tong)(tong)壁的(de)(de)厚(hou)(hou)(hou)度。凸凹模之间的(de)(de)间隙小(xiao)于(yu)毛(mao)坯(pi)厚(hou)(hou)(hou)度，毛(mao)坯(pi)直(zhi)壁部(bu)分(fen)在(zai)(zai)通(tong)过(guo)(guo)间隙时，处于(yu)较大(da)的(de)(de)均(jun)匀(yun)压应(ying)力之下(xia)，拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)(shen)(shen)过(guo)(guo)程(cheng)(cheng)(cheng)中(zhong)壁厚(hou)(hou)(hou)变(bian)薄(bo)(bo)的(de)(de)同(tong)时，消除容(rong)器壁厚(hou)(hou)(hou)偏差(cha)，增(zeng)加(jia)容(rong)器表面(mian)(mian)的(de)(de)光滑度，提高精度和强度面(mian)(mian)板拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)(shen)(shen)加(jia)工（Paneldrawing）：面(mian)(mian)板产品是(shi)板材冲(chong)(chong)压件(jian)(jian)，表面(mian)(mian)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)状(zhuang)复杂。在(zai)(zai)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)(shen)(shen)工序(xu)中(zhong)，毛(mao)坯(pi)变(bian)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)复杂，其成(cheng)(cheng)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)性(xing)质已非简单的(de)(de)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)(shen)(shen)成(cheng)(cheng)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)，而是(shi)拉(la)(la)(la)深(shen)(shen)与(yu)(yu)(yu)胀(zhang)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)同(tong)时存(cun)在(zai)(zai)的(de)(de)复合成(cheng)(cheng)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)。矩(ju)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)再拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)(shen)(shen)加(jia)工（Rectangularredrawing）：多次(ci)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)(shen)(shen)成(cheng)(cheng)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)的(de)(de)高矩(ju)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)件(jian)(jian)，其变(bian)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)不仅与(yu)(yu)(yu)深(shen)(shen)圆筒(tong)(tong)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)件(jian)(jian)的(de)(de)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)(shen)(shen)不同(tong)，与(yu)(yu)(yu)低盒形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)件(jian)(jian)的(de)(de)变(bian)形(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)也有很大(da)差(cha)别。精密拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)(shen)(shen)(shen)五金件(jian)(jian)加(jia)工除了以上两个方(fang)面(mian)(mian)，解决冲(chong)(chong)压件(jian)(jian)清(qing)洗(xi)问(wen)题(ti)(ti)还需要(yao)(yao)(yao)注意哪些问(wen)题(ti)(ti)呢？

毛坯与凸凹(ao)(ao)模(mo)(mo)(mo)(mo)中心不(bu)合或(huo)五(wu)金拉(la)深(shen)(shen)件(jian)冲(chong)(chong)压(ya)(ya)(ya)材料(liao)(liao)厚度不(bu)均匀，以(yi)(yi)及凹(ao)(ao)模(mo)(mo)(mo)(mo)圆(yuan)(yuan)(yuan)角(jiao)(jiao)半(ban)径(jing)(jing)和凸凹(ao)(ao)模(mo)(mo)(mo)(mo)间(jian)(jian)隙不(bu)均匀，凹(ao)(ao)模(mo)(mo)(mo)(mo)圆(yuan)(yuan)(yuan)角(jiao)(jiao)半(ban)径(jing)(jing)太(tai)大，在(zai)拉(la)深(shen)(shen)阶段脱离了压(ya)(ya)(ya)边圈(quan)，使尚未越过(guo)(guo)圆(yuan)(yuan)(yuan)角(jiao)(jiao)的(de)(de)(de)(de)(de)(de)材料(liao)(liao)压(ya)(ya)(ya)边圈(quan)压(ya)(ya)(ya)不(bu)到起皱(zhou)后被拉(la)入(ru)凹(ao)(ao)模(mo)(mo)(mo)(mo)形成(cheng)口(kou)缘褶皱(zhou)。五(wu)金拉(la)深(shen)(shen)件(jian)边缘不(bu)平对策：五(wu)金拉(la)深(shen)(shen)件(jian)冲(chong)(chong)模(mo)(mo)(mo)(mo)重新定位，校正(zheng)凹(ao)(ao)模(mo)(mo)(mo)(mo)圆(yuan)(yuan)(yuan)角(jiao)(jiao)半(ban)径(jing)(jing)和凸凹(ao)(ao)模(mo)(mo)(mo)(mo)间(jian)(jian)隙使其大小(xiao)均匀后再投入(ru)生产(chan)减少(shao)凹(ao)(ao)模(mo)(mo)(mo)(mo)圆(yuan)(yuan)(yuan)角(jiao)(jiao)半(ban)径(jing)(jing)或(huo)采用弧形压(ya)(ya)(ya)边圈(quan)装置即可消(xiao)除褶皱(zhou)。为什么(me)(me)有的(de)(de)(de)(de)(de)(de)拉(la)伸(shen)件(jian)厂家冲(chong)(chong)压(ya)(ya)(ya)出(chu)来的(de)(de)(de)(de)(de)(de)不(bu)锈钢拉(la)深(shen)(shen)件(jian)表(biao)(biao)面(mian)那么(me)(me)光滑(hua)(hua)(hua)，无划痕(hen)？有的(de)(de)(de)(de)(de)(de)生产(chan)出(chu)来的(de)(de)(de)(de)(de)(de)工件(jian)却是(shi)大批量的(de)(de)(de)(de)(de)(de)出(chu)现(xian)(xian)(xian)划痕(hen)。经过(guo)(guo)工程(cheng)师分析(xi)发现(xian)(xian)(xian)，不(bu)锈钢拉(la)深(shen)(shen)件(jian)表(biao)(biao)出(chu)现(xian)(xian)(xian)的(de)(de)(de)(de)(de)(de)那些划痕(hen)是(shi)在(zai)冲(chong)(chong)压(ya)(ya)(ya)移滑(hua)(hua)(hua)的(de)(de)(de)(de)(de)(de)过(guo)(guo)程(cheng)中造成(cheng)的(de)(de)(de)(de)(de)(de)。该怎么(me)(me)防止(zhi)出(chu)现(xian)(xian)(xian)划痕(hen)呢？改变滑(hua)(hua)(hua)移时的(de)(de)(de)(de)(de)(de)摩(mo)擦状态。可以(yi)(yi)用液态润(run)(run)滑(hua)(hua)(hua)、涂油覆(fu)膜、喷涂刷油以(yi)(yi)及凹(ao)(ao)模(mo)(mo)(mo)(mo)强制(zhi)润(run)(run)液等涂抹方式。精(jing)密(mi)拉(la)伸(shen)件(jian)就必须(xu)保(bao)证润(run)(run)滑(hua)(hua)(hua)剂(ji)能(neng)发挥(hui)作用应力要小(xiao)，精(jing)密(mi)度才能(neng)保(bao)持(chi)在(zai)。精(jing)密(mi)拉(la)伸(shen)件(jian)根据材料(liao)(liao)的(de)(de)(de)(de)(de)(de)不(bu)同(tong)，润(run)(run)滑(hua)(hua)(hua)剂(ji)可以(yi)(yi)选择的(de)(de)(de)(de)(de)(de)种类不(bu)一样，比较软的(de)(de)(de)(de)(de)(de)材料(liao)(liao)如紫铜(tong)，可以(yi)(yi)硬脂酸(suan)锌与动物(wu)油配成(cheng)的(de)(de)(de)(de)(de)(de)润(run)(run)滑(hua)(hua)(hua)剂(ji)，精(jing)密(mi)拉(la)伸(shen)件(jian)材料(liao)(liao)是(shi)铁低碳钢以(yi)(yi)前都用磷化皂化工艺在(zai)材料(liao)(liao)表(biao)(biao)面(mian)附上一层(ceng)润(run)(run)滑(hua)(hua)(hua)剂(ji)效(xiao)果(guo)非(fei)常(chang)好，但现(xian)(xian)(xian)在(zai)因为环境问(wen)题都改配方了，有的(de)(de)(de)(de)(de)(de)用硫化猪油和硫化脂肪酸(suan)酯为主剂(ji)调和而(er)成(cheng)，据说效(xiao)果(guo)也还(hai)不(bu)错，精(jing)密(mi)拉(la)伸(shen)件(jian)材料(liao)(liao)是(shi)铝材质(zhi)的(de)(de)(de)(de)(de)(de)。

使用(yong)冲压(ya)设(she)备进行(xing)(xing)产品的(de)(de)(de)(de)(de)(de)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)成(cheng)型加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)，包括：拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)、再(zai)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)、逆向拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)以(yi)(yi)及变薄拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)等。拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)：使用(yong)压(ya)板装置，利用(yong)凸模的(de)(de)(de)(de)(de)(de)冲压(ya)力，将平板材的(de)(de)(de)(de)(de)(de)一部(bu)分(fen)或者全部(bu)拉(la)(la)(la)入(ru)凹(ao)模型腔(qiang)内，使之(zhi)成(cheng)形(xing)为带底的(de)(de)(de)(de)(de)(de)容(rong)器(qi)。容(rong)器(qi)的(de)(de)(de)(de)(de)(de)侧壁与拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)方(fang)向平行(xing)(xing)的(de)(de)(de)(de)(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)，是(shi)单(dan)纯的(de)(de)(de)(de)(de)(de)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)，而对圆锥（或角锥）形(xing)容(rong)器(qi)、半球形(xing)容(rong)器(qi)及抛物线面(mian)容(rong)器(qi)等的(de)(de)(de)(de)(de)(de)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)，其(qi)中还(hai)包含(han)扩形(xing)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)。再(zai)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)：即对一次拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)无法(fa)完(wan)成(cheng)的(de)(de)(de)(de)(de)(de)深(shen)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)产品，需(xu)要(yao)将拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)的(de)(de)(de)(de)(de)(de)成(cheng)形(xing)产品进行(xing)(xing)再(zai)次拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)，以(yi)(yi)增加(jia)(jia)成(cheng)形(xing)容(rong)器(qi)的(de)(de)(de)(de)(de)(de)深(shen)度(du)(du)。在(zai)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)精密(mi)五(wu)金冲压(ya)件(jian)(jian)(jian)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)过(guo)程中我们还(hai)需(xu)要(yao)注意拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)精密(mi)五(wu)金冲压(ya)件(jian)(jian)(jian)各个(ge)部(bu)分(fen)的(de)(de)(de)(de)(de)(de)尺寸比(bi)例要(yao)合适，工(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)的(de)(de)(de)(de)(de)(de)设(she)计过(guo)程中，应尽量避(bi)免出(chu)现(xian)凸缘，以(yi)(yi)及深(shen)度(du)(du)较(jiao)大(da)的(de)(de)(de)(de)(de)(de)工(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)。因为这(zhei)(zhei)两种(zhong)工(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)，是(shi)需(xu)要(yao)较(jiao)多的(de)(de)(de)(de)(de)(de)拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)次数(shu)的(de)(de)(de)(de)(de)(de)，所以(yi)(yi)从某种(zhong)程度(du)(du)上(shang)，是(shi)增加(jia)(jia)了产品成(cheng)本(ben)。如果工(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)不(bu)符(fu)合拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)要(yao)求(qiu)的(de)(de)(de)(de)(de)(de)，那么可以(yi)(yi)通过(guo)分(fen)开的(de)(de)(de)(de)(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)制(zhi)造，来使其(qi)符(fu)合工(gong)(gong)(gong)(gong)(gong)艺(yi)要(yao)求(qiu)。然(ran)后(hou)要(yao)避(bi)免工(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)的(de)(de)(de)(de)(de)(de)厚度(du)(du)不(bu)均匀问题(ti)，其(qi)上(shang)面(mian)的(de)(de)(de)(de)(de)(de)孔(kong)的(de)(de)(de)(de)(de)(de)位置要(yao)合理。对于这(zhei)(zhei)两个(ge)工(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)工(gong)(gong)(gong)(gong)(gong)艺(yi)性要(yao)求(qiu)，也是(shi)需(xu)要(yao)引起重视的(de)(de)(de)(de)(de)(de)。对于要(yao)进行(xing)(xing)多次拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)的(de)(de)(de)(de)(de)(de)工(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)，尤其(qi)要(yao)注意了。对于拉(la)(la)(la)伸(shen)(shen)(shen)(shen)(shen)精密(mi)五(wu)金件(jian)(jian)(jian)的(de)(de)(de)(de)(de)(de)主要(yao)结构面(mian)上(shang)的(de)(de)(de)(de)(de)(de)孔(kong)的(de)(de)(de)(de)(de)(de)位置，除了这(zhei)(zhei)一要(yao)求(qiu)外，还(hai)应使其(qi)保(bao)持在(zai)一个(ge)平面(mian)上(shang)，以(yi)(yi)避(bi)免出(chu)现(xian)问题(ti)。如空气湿(shi)度(du)(du)大(da)，空气质量污染(ran)严重它很容(rong)易被氧化(hua)。

深(shen)圳(zhen)铭(ming)丰庆专(zhuan)业(ye)销售精(jing)(jing)密(mi)(mi)拉(la)(la)伸五(wu)金件(jian)，如有(you)需要(yao)(yao)，随(sui)时(shi)联系我们(men)铭(ming)丰庆！精(jing)(jing)密(mi)(mi)拉(la)(la)伸五(wu)金件(jian)的(de)模(mo)(mo)(mo)板(ban)爆(bao)(bao)裂(lie)(lie)是很常(chang)见的(de)现(xian)象。有(you)时(shi)候严重的(de)话(hua)，一(yi)个(ge)模(mo)(mo)(mo)板(ban)一(yi)下子分成几(ji)块(kuai)。当(dang)然，精(jing)(jing)密(mi)(mi)拉(la)(la)伸件(jian)模(mo)(mo)(mo)板(ban)直(zhi)接开裂(lie)(lie)的(de)原因有(you)很多，从(cong)模(mo)(mo)(mo)具设(she)计中的(de)材(cai)(cai)料采购到(dao)(dao)(dao)冲(chong)压(ya)(ya)操(cao)(cao)作过程都会(hui)影响(xiang)到(dao)(dao)(dao)。那么(me)(me)精(jing)(jing)密(mi)(mi)拉(la)(la)伸件(jian)模(mo)(mo)(mo)具爆(bao)(bao)裂(lie)(lie)的(de)的(de)原因是什么(me)(me)呢？精(jing)(jing)密(mi)(mi)拉(la)(la)伸件(jian)模(mo)(mo)(mo)具爆(bao)(bao)裂(lie)(lie)的(de)原因有(you)五(wu)种：冲(chong)裁(cai)不(bu)(bu)(bu)当(dang)、模(mo)(mo)(mo)具设(she)计工艺不(bu)(bu)(bu)合理(li)、热(re)处理(li)不(bu)(bu)(bu)当(dang)、线切(qie)割处理(li)不(bu)(bu)(bu)当(dang)以及冲(chong)压(ya)(ya)设(she)备选(xuan)择不(bu)(bu)(bu)当(dang)。另外呢，冲(chong)压(ya)(ya)操(cao)(cao)作人员(yuan)的(de)生产操(cao)(cao)作意识也(ye)很重要(yao)(yao)。如果操(cao)(cao)作人员(yuan)的(de)定(ding)位不(bu)(bu)(bu)到(dao)(dao)(dao)位，那么(me)(me)模(mo)(mo)(mo)板(ban)也(ye)会(hui)有(you)裂(lie)(lie)纹(wen)继(ji)续生产。为使冲(chong)压(ya)(ya)件(jian)达(da)到(dao)(dao)(dao)精(jing)(jing)度要(yao)(yao)求，常(chang)采用(yong)压(ya)(ya)在(zai)底材(cai)(cai)上的(de)五(wu)金冲(chong)压(ya)(ya)折(zhe)弯模(mo)(mo)(mo)。汕头精(jing)(jing)密(mi)(mi)拉(la)(la)伸五(wu)金件(jian)4J33连接台

首先(xian)是清洗剂的质量。有些清洗剂混入(ru)了(le)其(qi)他杂物，很难达到清洗的目地，不清洗又(you)会引起(qi)氧化。盐田区铁(tie)镍合(he)金(jin)4J33连接(jie)台加工精(jing)密(mi)拉伸五金(jin)件(jian)

1、圆(yuan)筒(tong)拉(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)加工：带凸缘(法(fa)兰(lan))圆(yuan)筒(tong)产品的(de)(de)(de)(de)拉(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)。法(fa)兰(lan)与底部均(jun)(jun)为平(ping)面(mian)形(xing)(xing)状(zhuang)，圆(yuan)筒(tong)侧壁(bi)为轴对(dui)称，在(zai)同(tong)一圆(yuan)周(zhou)上(shang)变(bian)(bian)(bian)(bian)形(xing)(xing)均(jun)(jun)匀分布(bu)，法(fa)兰(lan)上(shang)毛(mao)坯(pi)(pi)产生拉(la)(la)(la)(la)深变(bian)(bian)(bian)(bian)形(xing)(xing)。2、椭圆(yuan)拉(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)加工：法(fa)兰(lan)上(shang)毛(mao)坯(pi)(pi)的(de)(de)(de)(de)变(bian)(bian)(bian)(bian)形(xing)(xing)为拉(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)变(bian)(bian)(bian)(bian)形(xing)(xing)，但变(bian)(bian)(bian)(bian)形(xing)(xing)量与变(bian)(bian)(bian)(bian)形(xing)(xing)比(bi)沿轮廓形(xing)(xing)状(zhuang)相(xiang)应变(bian)(bian)(bian)(bian)化(hua)。曲率越大的(de)(de)(de)(de)部分，毛(mao)坯(pi)(pi)的(de)(de)(de)(de)塑(su)性(xing)变(bian)(bian)(bian)(bian)形(xing)(xing)量就越大;反(fan)之，曲率越小(xiao)的(de)(de)(de)(de)部分，毛(mao)坯(pi)(pi)的(de)(de)(de)(de)塑(su)性(xing)变(bian)(bian)(bian)(bian)形(xing)(xing)越小(xiao)。3、矩形(xing)(xing)拉(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)加工：一次拉(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)成(cheng)(cheng)形(xing)(xing)的(de)(de)(de)(de)低矩形(xing)(xing)件(jian)(jian)。拉(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)时(shi)(shi)(shi)，凸缘变(bian)(bian)(bian)(bian)形(xing)(xing)区(qu)圆(yuan)角(jiao)处的(de)(de)(de)(de)拉(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)阻力(li)大于直(zhi)边处的(de)(de)(de)(de)拉(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)阻力(li)，圆(yuan)角(jiao)处的(de)(de)(de)(de)变(bian)(bian)(bian)(bian)形(xing)(xing)程(cheng)度大于直(zhi)边处的(de)(de)(de)(de)变(bian)(bian)(bian)(bian)形(xing)(xing)程(cheng)度。4、山形(xing)(xing)拉(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)加工：冲(chong)(chong)压(ya)件(jian)(jian)的(de)(de)(de)(de)侧壁(bi)为斜面(mian)时(shi)(shi)(shi)，侧壁(bi)在(zai)冲(chong)(chong)压(ya)过(guo)程(cheng)中是悬(xuan)空的(de)(de)(de)(de)，不贴模(mo)(mo)，直(zhi)到(dao)成(cheng)(cheng)形(xing)(xing)结束时(shi)(shi)(shi)才贴模(mo)(mo)。成(cheng)(cheng)形(xing)(xing)时(shi)(shi)(shi)侧壁(bi)的(de)(de)(de)(de)不同(tong)部位(wei)变(bian)(bian)(bian)(bian)形(xing)(xing)特点(dian)不完全相(xiang)同(tong)。变(bian)(bian)(bian)(bian)薄拉(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)加工：用凸模(mo)(mo)将已成(cheng)(cheng)形(xing)(xing)容(rong)(rong)器(qi)(qi)挤入比(bi)容(rong)(rong)器(qi)(qi)外(wai)(wai)径稍小(xiao)的(de)(de)(de)(de)凹(ao)模(mo)(mo)型腔内，使(shi)带底的(de)(de)(de)(de)容(rong)(rong)器(qi)(qi)外(wai)(wai)径变(bian)(bian)(bian)(bian)小(xiao)，同(tong)时(shi)(shi)(shi)壁(bi)厚变(bian)(bian)(bian)(bian)薄，既消除壁(bi)厚偏差，又使(shi)容(rong)(rong)器(qi)(qi)表(biao)面(mian)光滑(hua)。按照(zhao)冲(chong)(chong)压(ya)时(shi)(shi)(shi)的(de)(de)(de)(de)温度情(qing)(qing)况(kuang)有(you)冷(leng)冲(chong)(chong)压(ya)和(he)热(re)(re)冲(chong)(chong)压(ya)两种(zhong)方式。这取(qu)决(jue)于精密(mi)小(xiao)五(wu)金(jin)拉(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)件(jian)(jian)材料的(de)(de)(de)(de)强(qiang)度、厚度、变(bian)(bian)(bian)(bian)形(xing)(xing)程(cheng)度以及(ji)设备能(neng)力(li)等，同(tong)时(shi)(shi)(shi)应考虑材料的(de)(de)(de)(de)原始热(re)(re)处理状(zhuang)态(tai)和(he)终使(shi)用条件(jian)(jian)。按照(zhao)冲(chong)(chong)压(ya)时(shi)(shi)(shi)的(de)(de)(de)(de)温度情(qing)(qing)况(kuang)有(you)冷(leng)冲(chong)(chong)压(ya)和(he)热(re)(re)冲(chong)(chong)压(ya)两种(zhong)方式。这取(qu)决(jue)于精密(mi)小(xiao)五(wu)金(jin)拉(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)件(jian)(jian)材料的(de)(de)(de)(de)强(qiang)度、厚度、变(bian)(bian)(bian)(bian)形(xing)(xing)程(cheng)度以及(ji)设备能(neng)力(li)等。盐(yan)田区(qu)铁镍合金(jin)4J33连(lian)接(jie)台加工精密(mi)拉(la)(la)(la)(la)伸(shen)(shen)(shen)(shen)五(wu)金(jin)件(jian)(jian)

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