精密拉(la)(la)伸(shen)(shen)(shen)冲压(ya)中(zhong)，铝合金(jin)拉(la)(la)伸(shen)(shen)(shen)件(jian)(jian)(jian)是(shi)比较难加(jia)(jia)工(gong)的(de)(de)(de)，但是(shi)在(zai)(zai)加(jia)(jia)工(gong)中(zhong)注(zhu)意(yi)某(mou)些问(wen)题点就可(ke)以(yi)很(hen)顺(shun)利的(de)(de)(de)完成加(jia)(jia)工(gong)了。铝合金(jin)拉(la)(la)伸(shen)(shen)(shen)件(jian)(jian)(jian)加(jia)(jia)工(gong)注(zhu)意(yi)事项(xiang)有(you)：在(zai)(zai)取(qu)料(liao)(liao)、移(yi)动、拉(la)(la)伸(shen)(shen)(shen)中(zhong)材(cai)(cai)(cai)料(liao)(liao)不能(neng)相(xiang)互(hu)碰擦，堆叠以(yi)及(ji)缠(chan)绕(rao)等，相(xiang)互(hu)之(zhi)间要(yao)(yao)留有(you)一定的(de)(de)(de)空(kong)隙。对容易折弯、出(chu)料(liao)(liao)长短的(de)(de)(de)铝合金(jin)材(cai)(cai)(cai)料(liao)(liao)要(yao)(yao)及(ji)时处理。原材(cai)(cai)(cai)料(liao)(liao)要(yao)(yao)冷却到(dao)50°以(yi)下(xia)才能(neng)移(yi)到(dao)拉(la)(la)伸(shen)(shen)(shen)架(jia)上(shang)(shang)进行拉(la)(la)伸(shen)(shen)(shen)加(jia)(jia)工(gong)，温度(du)过高(gao)会烫到(dao)作业员(yuan)和烫坏坯毛条(tiao)，也不能(neng)彻底的(de)(de)(de)消(xiao)除(chu)材(cai)(cai)(cai)料(liao)(liao)内应(ying)力(li)从而(er)产生废品(pin)。由于毛条(tiao)有(you)阻热效果(guo)，装饰外表(biao)需(xu)求(qiu)(qiu)高(gao)的(de)(de)(de)铝合金(jin)材(cai)(cai)(cai)料(liao)(liao)要(yao)(yao)多翻转，便(bian)于散热均匀(yun)，从而(er)减少横向亮斑(ban)。要(yao)(yao)注(zhu)意(yi)宽厚比较高(gao)，弧(hu)度(du)大、壁(bi)厚细(xi)、形状奇(qi)怪等铝合金(jin)材(cai)(cai)(cai)料(liao)(liao)的(de)(de)(de)小脚、薄齿(chi)、长腿(tui)、圆弧(hu)面(mian)(mian)、倾斜面(mian)(mian)、开口、视(shi)点等受力(li)情况，避免材(cai)(cai)(cai)料(liao)(liao)部分或者(zhe)点状尺度(du)变(bian)形、扭曲、螺旋(xuan)等。拉(la)(la)伸(shen)(shen)(shen)量(liang)要(yao)(yao)控制在(zai)(zai)百分之(zhi)一的(de)(de)(de)摆布，冲压(ya)过程中(zhong)需(xu)根据原材(cai)(cai)(cai)料(liao)(liao)的(de)(de)(de)出(chu)料(liao)(liao)实际情况与各(ge)种(zhong)具(ju)(ju)体需(xu)求(qiu)(qiu)加(jia)(jia)以(yi)调整。在(zai)(zai)相(xiang)互(hu)对立的(de)(de)(de)技能(neng)需(xu)求(qiu)(qiu)中(zhong)寻找满足各(ge)种(zhong)具(ju)(ju)体需(xu)求(qiu)(qiu)的(de)(de)(de)拉(la)(la)伸(shen)(shen)(shen)量(liang)。造成表(biao)面(mian)(mian)划(hua)(hua)痕(hen)的(de)(de)(de)因素有(you)：不锈钢拉(la)(la)伸(shen)(shen)(shen)件(jian)(jian)(jian)的(de)(de)(de)表(biao)面(mian)(mian)会出(chu)现划(hua)(hua)痕(hen)是(shi)由于工(gong)件(jian)(jian)(jian)与模具(ju)(ju)表(biao)面(mian)(mian)存(cun)在(zai)(zai)相(xiang)对的(de)(de)(de)移(yi)动，在(zai)(zai)一定的(de)(de)(de)压(ya)力(li)促使(shi)(shi)下(xia)，导致坯料(liao)(liao)和模具(ju)(ju)局部表(biao)面(mian)(mian)直接产生摩擦，加(jia)(jia)之(zhi)坯料(liao)(liao)的(de)(de)(de)变(bian)形热使(shi)(shi)得坯料(liao)(liao)和金(jin)屑熔盖在(zai)(zai)模具(ju)(ju)的(de)(de)(de)表(biao)面(mian)(mian)上(shang)(shang)，使(shi)(shi)工(gong)件(jian)(jian)(jian)外表(biao)擦伤产生划(hua)(hua)痕(hen)。

较(jiao)软的材料在冲压后具有较(jiao)小的弹性变(bian)形和较(jiao)小的弹性回(hui)复(fu)率(lv)，这使得零件更加精确(que)。盐田区铁镍合金(jin)4J33连接台(tai)加工精密拉伸五金(jin)件

深(shen)(shen)锥(zhui)形(xing)(xing)(xing)件(jian)(jian)(jian)(jian)(jian)由于深(shen)(shen)度(du)(du)变(bian)(bian)(bian)形(xing)(xing)(xing)程度(du)(du)较(jiao)大(da)(da)，极易引起坯料局部(bu)(bu)过(guo)度(du)(du)变(bian)(bian)(bian)薄(bo)乃至(zhi)破裂，需(xu)要(yao)经过(guo)多(duo)次(ci)过(guo)渡逐渐成形(xing)(xing)(xing)多(duo)次(ci)拉(la)(la)(la)(la)伸(shen)(shen)(shen)成形(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)高(gao)(gao)矩形(xing)(xing)(xing)件(jian)(jian)(jian)(jian)(jian)，其变(bian)(bian)(bian)形(xing)(xing)(xing)不(bu)(bu)仅(jin)与深(shen)(shen)圆(yuan)筒形(xing)(xing)(xing)件(jian)(jian)(jian)(jian)(jian)的(de)(de)(de)(de)(de)(de)(de)拉(la)(la)(la)(la)伸(shen)(shen)(shen)不(bu)(bu)同(tong)，与低(di)(di)盒形(xing)(xing)(xing)件(jian)(jian)(jian)(jian)(jian)的(de)(de)(de)(de)(de)(de)(de)变(bian)(bian)(bian)形(xing)(xing)(xing)也有(you)很大(da)(da)差别曲面拉(la)(la)(la)(la)伸(shen)(shen)(shen)成形(xing)(xing)(xing)，使(shi)金属(shu)平(ping)板坯料外(wai)法兰部(bu)(bu)分(fen)缩小，内法兰部(bu)(bu)分(fen)伸(shen)(shen)(shen)长，成为非直壁(bi)非平(ping)底的(de)(de)(de)(de)(de)(de)(de)曲面形(xing)(xing)(xing)状的(de)(de)(de)(de)(de)(de)(de)冲压(ya)(ya)成形(xing)(xing)(xing)方(fang)法将初(chu)拉(la)(la)(la)(la)伸(shen)(shen)(shen)进行再拉(la)(la)(la)(la)伸(shen)(shen)(shen)成形(xing)(xing)(xing)为台阶形(xing)(xing)(xing)底部(bu)(bu)。深(shen)(shen)度(du)(du)较(jiao)深(shen)(shen)的(de)(de)(de)(de)(de)(de)(de)部(bu)(bu)分(fen)在拉(la)(la)(la)(la)伸(shen)(shen)(shen)成形(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)初(chu)期就(jiu)产生(sheng)变(bian)(bian)(bian)形(xing)(xing)(xing)，深(shen)(shen)度(du)(du)较(jiao)浅的(de)(de)(de)(de)(de)(de)(de)部(bu)(bu)分(fen)在拉(la)(la)(la)(la)伸(shen)(shen)(shen)的(de)(de)(de)(de)(de)(de)(de)后期产生(sheng)变(bian)(bian)(bian)形(xing)(xing)(xing)与普通拉(la)(la)(la)(la)伸(shen)(shen)(shen)不(bu)(bu)同(tong)，变(bian)(bian)(bian)薄(bo)拉(la)(la)(la)(la)伸(shen)(shen)(shen)主(zhu)要(yao)是(shi)(shi)在拉(la)(la)(la)(la)伸(shen)(shen)(shen)过(guo)程中(zhong)(zhong)改(gai)变(bian)(bian)(bian)拉(la)(la)(la)(la)伸(shen)(shen)(shen)件(jian)(jian)(jian)(jian)(jian)筒壁(bi)的(de)(de)(de)(de)(de)(de)(de)厚(hou)(hou)度(du)(du)。变(bian)(bian)(bian)薄(bo)拉(la)(la)(la)(la)伸(shen)(shen)(shen)加(jia)工(gong)（Ironing）：与普通拉(la)(la)(la)(la)伸(shen)(shen)(shen)不(bu)(bu)同(tong)，变(bian)(bian)(bian)薄(bo)拉(la)(la)(la)(la)伸(shen)(shen)(shen)主(zhu)要(yao)是(shi)(shi)在拉(la)(la)(la)(la)伸(shen)(shen)(shen)过(guo)程中(zhong)(zhong)改(gai)变(bian)(bian)(bian)拉(la)(la)(la)(la)伸(shen)(shen)(shen)件(jian)(jian)(jian)(jian)(jian)筒壁(bi)的(de)(de)(de)(de)(de)(de)(de)厚(hou)(hou)度(du)(du)。凸凹模之间(jian)的(de)(de)(de)(de)(de)(de)(de)间(jian)隙小于毛坯厚(hou)(hou)度(du)(du)，毛坯直壁(bi)部(bu)(bu)分(fen)在通过(guo)间(jian)隙时(shi)，处于较(jiao)大(da)(da)的(de)(de)(de)(de)(de)(de)(de)均匀压(ya)(ya)应力之下，拉(la)(la)(la)(la)伸(shen)(shen)(shen)过(guo)程中(zhong)(zhong)壁(bi)厚(hou)(hou)变(bian)(bian)(bian)薄(bo)的(de)(de)(de)(de)(de)(de)(de)同(tong)时(shi)，消(xiao)除容器壁(bi)厚(hou)(hou)偏差，增(zeng)加(jia)容器表面的(de)(de)(de)(de)(de)(de)(de)光滑度(du)(du)，提高(gao)(gao)精度(du)(du)和强度(du)(du)面板拉(la)(la)(la)(la)伸(shen)(shen)(shen)加(jia)工(gong)（Paneldrawing）：面板产品(pin)是(shi)(shi)板材(cai)冲压(ya)(ya)件(jian)(jian)(jian)(jian)(jian)，表面形(xing)(xing)(xing)状复(fu)杂(za)。在拉(la)(la)(la)(la)伸(shen)(shen)(shen)工(gong)序中(zhong)(zhong)，毛坯变(bian)(bian)(bian)形(xing)(xing)(xing)复(fu)杂(za)，其成形(xing)(xing)(xing)性质已(yi)非简单的(de)(de)(de)(de)(de)(de)(de)拉(la)(la)(la)(la)伸(shen)(shen)(shen)成形(xing)(xing)(xing)，而是(shi)(shi)拉(la)(la)(la)(la)深(shen)(shen)与胀形(xing)(xing)(xing)同(tong)时(shi)存在的(de)(de)(de)(de)(de)(de)(de)复(fu)合成形(xing)(xing)(xing)。矩形(xing)(xing)(xing)再拉(la)(la)(la)(la)伸(shen)(shen)(shen)加(jia)工(gong)（Rectangularredrawing）：多(duo)次(ci)拉(la)(la)(la)(la)伸(shen)(shen)(shen)成形(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)高(gao)(gao)矩形(xing)(xing)(xing)件(jian)(jian)(jian)(jian)(jian)，其变(bian)(bian)(bian)形(xing)(xing)(xing)不(bu)(bu)仅(jin)与深(shen)(shen)圆(yuan)筒形(xing)(xing)(xing)件(jian)(jian)(jian)(jian)(jian)的(de)(de)(de)(de)(de)(de)(de)拉(la)(la)(la)(la)伸(shen)(shen)(shen)不(bu)(bu)同(tong)，与低(di)(di)盒形(xing)(xing)(xing)件(jian)(jian)(jian)(jian)(jian)的(de)(de)(de)(de)(de)(de)(de)变(bian)(bian)(bian)形(xing)(xing)(xing)也有(you)很大(da)(da)差别。精密(mi)拉(la)(la)(la)(la)伸(shen)(shen)(shen)五金件(jian)(jian)(jian)(jian)(jian)加(jia)工(gong)除了(le)以上两个方(fang)面，解决冲压(ya)(ya)件(jian)(jian)(jian)(jian)(jian)清(qing)洗(xi)问题还需(xu)要(yao)注(zhu)意哪些(xie)问题呢？

毛坯与凸凹(ao)(ao)模(mo)(mo)(mo)中心不合或五金(jin)拉(la)深(shen)件冲压(ya)(ya)(ya)材(cai)(cai)料(liao)厚度(du)(du)不均匀(yun)，以(yi)(yi)及凹(ao)(ao)模(mo)(mo)(mo)圆(yuan)(yuan)(yuan)角(jiao)半(ban)径和凸凹(ao)(ao)模(mo)(mo)(mo)间隙不均匀(yun)，凹(ao)(ao)模(mo)(mo)(mo)圆(yuan)(yuan)(yuan)角(jiao)半(ban)径太大，在拉(la)深(shen)阶(jie)段脱离了压(ya)(ya)(ya)边圈(quan)，使尚未越过(guo)圆(yuan)(yuan)(yuan)角(jiao)的(de)(de)(de)材(cai)(cai)料(liao)压(ya)(ya)(ya)边圈(quan)压(ya)(ya)(ya)不到(dao)起皱后被拉(la)入(ru)凹(ao)(ao)模(mo)(mo)(mo)形(xing)成口缘褶皱。五金(jin)拉(la)深(shen)件边缘不平对策：五金(jin)拉(la)深(shen)件冲模(mo)(mo)(mo)重新定位，校(xiao)正凹(ao)(ao)模(mo)(mo)(mo)圆(yuan)(yuan)(yuan)角(jiao)半(ban)径和凸凹(ao)(ao)模(mo)(mo)(mo)间隙使其大小(xiao)均匀(yun)后再投入(ru)生(sheng)产减少(shao)凹(ao)(ao)模(mo)(mo)(mo)圆(yuan)(yuan)(yuan)角(jiao)半(ban)径或采用(yong)弧形(xing)压(ya)(ya)(ya)边圈(quan)装置即可消(xiao)除褶皱。为(wei)什么(me)有(you)的(de)(de)(de)拉(la)伸(shen)(shen)件厂家冲压(ya)(ya)(ya)出(chu)来的(de)(de)(de)不锈钢(gang)拉(la)深(shen)件表面(mian)那么(me)光滑(hua)，无划(hua)痕？有(you)的(de)(de)(de)生(sheng)产出(chu)来的(de)(de)(de)工(gong)件却是(shi)(shi)大批(pi)量的(de)(de)(de)出(chu)现(xian)(xian)划(hua)痕。经过(guo)工(gong)程(cheng)师分析发现(xian)(xian)，不锈钢(gang)拉(la)深(shen)件表出(chu)现(xian)(xian)的(de)(de)(de)那些划(hua)痕是(shi)(shi)在冲压(ya)(ya)(ya)移滑(hua)的(de)(de)(de)过(guo)程(cheng)中造成的(de)(de)(de)。该(gai)怎么(me)防(fang)止出(chu)现(xian)(xian)划(hua)痕呢？改(gai)变滑(hua)移时的(de)(de)(de)摩擦状态。可以(yi)(yi)用(yong)液态润(run)(run)(run)滑(hua)、涂(tu)油覆膜、喷涂(tu)刷油以(yi)(yi)及凹(ao)(ao)模(mo)(mo)(mo)强制润(run)(run)(run)液等涂(tu)抹方(fang)式。精密(mi)拉(la)伸(shen)(shen)件就必须保证润(run)(run)(run)滑(hua)剂(ji)能发挥作(zuo)用(yong)应力要小(xiao)，精密(mi)度(du)(du)才能保持在。精密(mi)拉(la)伸(shen)(shen)件根据(ju)材(cai)(cai)料(liao)的(de)(de)(de)不同，润(run)(run)(run)滑(hua)剂(ji)可以(yi)(yi)选择的(de)(de)(de)种类(lei)不一样，比较软的(de)(de)(de)材(cai)(cai)料(liao)如紫铜，可以(yi)(yi)硬脂(zhi)酸锌(xin)与动(dong)物油配(pei)成的(de)(de)(de)润(run)(run)(run)滑(hua)剂(ji)，精密(mi)拉(la)伸(shen)(shen)件材(cai)(cai)料(liao)是(shi)(shi)铁低碳钢(gang)以(yi)(yi)前都(dou)用(yong)磷化(hua)(hua)皂化(hua)(hua)工(gong)艺(yi)在材(cai)(cai)料(liao)表面(mian)附上一层润(run)(run)(run)滑(hua)剂(ji)效果非常好，但现(xian)(xian)在因为(wei)环境问题都(dou)改(gai)配(pei)方(fang)了，有(you)的(de)(de)(de)用(yong)硫化(hua)(hua)猪油和硫化(hua)(hua)脂(zhi)肪酸酯为(wei)主(zhu)剂(ji)调(diao)和而成，据(ju)说效果也还不错，精密(mi)拉(la)伸(shen)(shen)件材(cai)(cai)料(liao)是(shi)(shi)铝材(cai)(cai)质的(de)(de)(de)。

使(shi)用冲(chong)压设备进(jin)行产(chan)品(pin)的(de)(de)(de)(de)拉(la)(la)(la)(la)(la)伸(shen)(shen)(shen)成(cheng)(cheng)型加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，包(bao)(bao)括：拉(la)(la)(la)(la)(la)伸(shen)(shen)(shen)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)、再拉(la)(la)(la)(la)(la)伸(shen)(shen)(shen)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)、逆向(xiang)拉(la)(la)(la)(la)(la)伸(shen)(shen)(shen)以(yi)及(ji)变薄拉(la)(la)(la)(la)(la)伸(shen)(shen)(shen)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)等。拉(la)(la)(la)(la)(la)伸(shen)(shen)(shen)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)：使(shi)用压板(ban)装置(zhi)，利用凸(tu)模的(de)(de)(de)(de)冲(chong)压力，将平(ping)板(ban)材的(de)(de)(de)(de)一(yi)(yi)部分(fen)或(huo)(huo)者全部拉(la)(la)(la)(la)(la)入凹(ao)模型腔内(nei)，使(shi)之成(cheng)(cheng)形(xing)(xing)为(wei)带底的(de)(de)(de)(de)容(rong)器(qi)(qi)。容(rong)器(qi)(qi)的(de)(de)(de)(de)侧(ce)壁与(yu)拉(la)(la)(la)(la)(la)伸(shen)(shen)(shen)方向(xiang)平(ping)行的(de)(de)(de)(de)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，是单纯的(de)(de)(de)(de)拉(la)(la)(la)(la)(la)伸(shen)(shen)(shen)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，而对(dui)圆锥（或(huo)(huo)角锥）形(xing)(xing)容(rong)器(qi)(qi)、半(ban)球形(xing)(xing)容(rong)器(qi)(qi)及(ji)抛物线面容(rong)器(qi)(qi)等的(de)(de)(de)(de)拉(la)(la)(la)(la)(la)伸(shen)(shen)(shen)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，其(qi)(qi)中还包(bao)(bao)含扩形(xing)(xing)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)。再拉(la)(la)(la)(la)(la)伸(shen)(shen)(shen)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)：即对(dui)一(yi)(yi)次拉(la)(la)(la)(la)(la)伸(shen)(shen)(shen)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)无法完(wan)成(cheng)(cheng)的(de)(de)(de)(de)深(shen)(shen)拉(la)(la)(la)(la)(la)伸(shen)(shen)(shen)产(chan)品(pin)，需(xu)要(yao)(yao)(yao)将拉(la)(la)(la)(la)(la)伸(shen)(shen)(shen)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)的(de)(de)(de)(de)成(cheng)(cheng)形(xing)(xing)产(chan)品(pin)进(jin)行再次拉(la)(la)(la)(la)(la)伸(shen)(shen)(shen)，以(yi)增加(jia)(jia)(jia)(jia)成(cheng)(cheng)形(xing)(xing)容(rong)器(qi)(qi)的(de)(de)(de)(de)深(shen)(shen)度(du)。在(zai)拉(la)(la)(la)(la)(la)伸(shen)(shen)(shen)精(jing)(jing)密(mi)(mi)五金(jin)冲(chong)压件(jian)(jian)(jian)(jian)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)过程中我们还需(xu)要(yao)(yao)(yao)注(zhu)意(yi)拉(la)(la)(la)(la)(la)伸(shen)(shen)(shen)精(jing)(jing)密(mi)(mi)五金(jin)冲(chong)压件(jian)(jian)(jian)(jian)各个部分(fen)的(de)(de)(de)(de)尺寸(cun)比例(li)要(yao)(yao)(yao)合适(shi)，工(gong)(gong)(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)(jian)的(de)(de)(de)(de)设计过程中，应尽量避免(mian)出现凸(tu)缘，以(yi)及(ji)深(shen)(shen)度(du)较大的(de)(de)(de)(de)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)(jian)。因(yin)为(wei)这两种工(gong)(gong)(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)(jian)，是需(xu)要(yao)(yao)(yao)较多(duo)的(de)(de)(de)(de)拉(la)(la)(la)(la)(la)伸(shen)(shen)(shen)次数的(de)(de)(de)(de)，所(suo)以(yi)从某种程度(du)上，是增加(jia)(jia)(jia)(jia)了产(chan)品(pin)成(cheng)(cheng)本。如果工(gong)(gong)(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)(jian)不符合拉(la)(la)(la)(la)(la)伸(shen)(shen)(shen)要(yao)(yao)(yao)求(qiu)的(de)(de)(de)(de)，那么可(ke)以(yi)通过分(fen)开的(de)(de)(de)(de)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)制造，来使(shi)其(qi)(qi)符合工(gong)(gong)(gong)(gong)(gong)(gong)(gong)艺要(yao)(yao)(yao)求(qiu)。然后要(yao)(yao)(yao)避免(mian)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)(jian)的(de)(de)(de)(de)厚度(du)不均匀问题，其(qi)(qi)上面的(de)(de)(de)(de)孔的(de)(de)(de)(de)位(wei)(wei)置(zhi)要(yao)(yao)(yao)合理。对(dui)于这两个工(gong)(gong)(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)(jian)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)艺性要(yao)(yao)(yao)求(qiu)，也是需(xu)要(yao)(yao)(yao)引起重(zhong)视的(de)(de)(de)(de)。对(dui)于要(yao)(yao)(yao)进(jin)行多(duo)次拉(la)(la)(la)(la)(la)伸(shen)(shen)(shen)的(de)(de)(de)(de)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)(jian)，尤(you)其(qi)(qi)要(yao)(yao)(yao)注(zhu)意(yi)了。对(dui)于拉(la)(la)(la)(la)(la)伸(shen)(shen)(shen)精(jing)(jing)密(mi)(mi)五金(jin)件(jian)(jian)(jian)(jian)的(de)(de)(de)(de)主(zhu)要(yao)(yao)(yao)结构面上的(de)(de)(de)(de)孔的(de)(de)(de)(de)位(wei)(wei)置(zhi)，除了这一(yi)(yi)要(yao)(yao)(yao)求(qiu)外，还应使(shi)其(qi)(qi)保持在(zai)一(yi)(yi)个平(ping)面上，以(yi)避免(mian)出现问题。如空气湿度(du)大，空气质量污染严重(zhong)它很(hen)容(rong)易被氧化。

深圳(zhen)铭(ming)丰庆(qing)专业销售(shou)精(jing)(jing)密(mi)(mi)(mi)拉(la)伸五(wu)(wu)金件(jian)(jian)，如有(you)需要，随时联系我们铭(ming)丰庆(qing)！精(jing)(jing)密(mi)(mi)(mi)拉(la)伸五(wu)(wu)金件(jian)(jian)的(de)(de)(de)模(mo)板爆(bao)(bao)裂是(shi)很常(chang)见的(de)(de)(de)现象。有(you)时候严重的(de)(de)(de)话，一个模(mo)板一下子分(fen)成几块。当(dang)(dang)然，精(jing)(jing)密(mi)(mi)(mi)拉(la)伸件(jian)(jian)模(mo)板直接(jie)开(kai)裂的(de)(de)(de)原(yuan)因(yin)有(you)很多，从模(mo)具设(she)(she)计(ji)中(zhong)的(de)(de)(de)材料(liao)采购到(dao)冲(chong)压(ya)操作过(guo)程都会影响到(dao)。那么(me)精(jing)(jing)密(mi)(mi)(mi)拉(la)伸件(jian)(jian)模(mo)具爆(bao)(bao)裂的(de)(de)(de)的(de)(de)(de)原(yuan)因(yin)是(shi)什(shen)么(me)呢(ni)？精(jing)(jing)密(mi)(mi)(mi)拉(la)伸件(jian)(jian)模(mo)具爆(bao)(bao)裂的(de)(de)(de)原(yuan)因(yin)有(you)五(wu)(wu)种：冲(chong)裁不(bu)(bu)(bu)当(dang)(dang)、模(mo)具设(she)(she)计(ji)工艺(yi)不(bu)(bu)(bu)合理(li)、热处(chu)理(li)不(bu)(bu)(bu)当(dang)(dang)、线切(qie)割(ge)处(chu)理(li)不(bu)(bu)(bu)当(dang)(dang)以及冲(chong)压(ya)设(she)(she)备(bei)选(xuan)择不(bu)(bu)(bu)当(dang)(dang)。另外(wai)呢(ni)，冲(chong)压(ya)操作人员的(de)(de)(de)生(sheng)产操作意识也很重要。如果操作人员的(de)(de)(de)定位不(bu)(bu)(bu)到(dao)位，那么(me)模(mo)板也会有(you)裂纹继续生(sheng)产。为使冲(chong)压(ya)件(jian)(jian)达到(dao)精(jing)(jing)度要求，常(chang)采用(yong)压(ya)在(zai)底材上的(de)(de)(de)五(wu)(wu)金冲(chong)压(ya)折弯模(mo)。汕头精(jing)(jing)密(mi)(mi)(mi)拉(la)伸五(wu)(wu)金件(jian)(jian)4J33连接(jie)台

首先是清(qing)洗(xi)剂(ji)的(de)质量。有些清(qing)洗(xi)剂(ji)混(hun)入了其他杂物，很难达到清(qing)洗(xi)的(de)目地，不清(qing)洗(xi)又会引起(qi)氧化。盐田区(qu)铁镍(nie)合金(jin)4J33连接台加工(gong)精密拉伸五金(jin)件

1、圆(yuan)筒(tong)(tong)拉(la)(la)伸(shen)(shen)加工(gong)(gong)：带凸缘(法(fa)兰)圆(yuan)筒(tong)(tong)产品的(de)(de)(de)拉(la)(la)伸(shen)(shen)。法(fa)兰与(yu)底部(bu)均(jun)为平面(mian)形(xing)(xing)(xing)(xing)(xing)(xing)状，圆(yuan)筒(tong)(tong)侧(ce)(ce)壁为轴对(dui)称，在(zai)同(tong)(tong)一圆(yuan)周上变(bian)(bian)(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)(xing)均(jun)匀分布，法(fa)兰上毛(mao)(mao)坯产生拉(la)(la)深变(bian)(bian)(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)(xing)。2、椭圆(yuan)拉(la)(la)伸(shen)(shen)加工(gong)(gong)：法(fa)兰上毛(mao)(mao)坯的(de)(de)(de)变(bian)(bian)(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)(xing)为拉(la)(la)伸(shen)(shen)变(bian)(bian)(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)(xing)，但变(bian)(bian)(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)(xing)量与(yu)变(bian)(bian)(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)(xing)比沿轮廓形(xing)(xing)(xing)(xing)(xing)(xing)状相(xiang)应(ying)(ying)变(bian)(bian)(bian)(bian)(bian)(bian)化。曲率越(yue)大(da)的(de)(de)(de)部(bu)分，毛(mao)(mao)坯的(de)(de)(de)塑性变(bian)(bian)(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)(xing)量就越(yue)大(da);反之(zhi)，曲率越(yue)小(xiao)(xiao)的(de)(de)(de)部(bu)分，毛(mao)(mao)坯的(de)(de)(de)塑性变(bian)(bian)(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)(xing)越(yue)小(xiao)(xiao)。3、矩形(xing)(xing)(xing)(xing)(xing)(xing)拉(la)(la)伸(shen)(shen)加工(gong)(gong)：一次拉(la)(la)伸(shen)(shen)成形(xing)(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)低矩形(xing)(xing)(xing)(xing)(xing)(xing)件(jian)(jian)(jian)(jian)。拉(la)(la)伸(shen)(shen)时(shi)(shi)，凸缘变(bian)(bian)(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)(xing)区圆(yuan)角处的(de)(de)(de)拉(la)(la)伸(shen)(shen)阻力大(da)于(yu)直(zhi)边处的(de)(de)(de)拉(la)(la)伸(shen)(shen)阻力，圆(yuan)角处的(de)(de)(de)变(bian)(bian)(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)(xing)程(cheng)(cheng)度(du)(du)大(da)于(yu)直(zhi)边处的(de)(de)(de)变(bian)(bian)(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)(xing)程(cheng)(cheng)度(du)(du)。4、山形(xing)(xing)(xing)(xing)(xing)(xing)拉(la)(la)伸(shen)(shen)加工(gong)(gong)：冲(chong)(chong)压(ya)(ya)(ya)(ya)件(jian)(jian)(jian)(jian)的(de)(de)(de)侧(ce)(ce)壁为斜面(mian)时(shi)(shi)，侧(ce)(ce)壁在(zai)冲(chong)(chong)压(ya)(ya)(ya)(ya)过(guo)程(cheng)(cheng)中是悬空的(de)(de)(de)，不贴模，直(zhi)到成形(xing)(xing)(xing)(xing)(xing)(xing)结束时(shi)(shi)才贴模。成形(xing)(xing)(xing)(xing)(xing)(xing)时(shi)(shi)侧(ce)(ce)壁的(de)(de)(de)不同(tong)(tong)部(bu)位变(bian)(bian)(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)(xing)特(te)点不完全相(xiang)同(tong)(tong)。变(bian)(bian)(bian)(bian)(bian)(bian)薄(bo)拉(la)(la)伸(shen)(shen)加工(gong)(gong)：用(yong)凸模将已成形(xing)(xing)(xing)(xing)(xing)(xing)容器(qi)挤入比容器(qi)外(wai)径稍小(xiao)(xiao)的(de)(de)(de)凹模型腔内(nei)，使带底的(de)(de)(de)容器(qi)外(wai)径变(bian)(bian)(bian)(bian)(bian)(bian)小(xiao)(xiao)，同(tong)(tong)时(shi)(shi)壁厚变(bian)(bian)(bian)(bian)(bian)(bian)薄(bo)，既(ji)消(xiao)除壁厚偏差，又(you)使容器(qi)表面(mian)光滑。按照冲(chong)(chong)压(ya)(ya)(ya)(ya)时(shi)(shi)的(de)(de)(de)温度(du)(du)情况(kuang)有(you)冷(leng)冲(chong)(chong)压(ya)(ya)(ya)(ya)和(he)热(re)冲(chong)(chong)压(ya)(ya)(ya)(ya)两种(zhong)方式。这取决于(yu)精密小(xiao)(xiao)五金(jin)拉(la)(la)伸(shen)(shen)件(jian)(jian)(jian)(jian)材料的(de)(de)(de)强度(du)(du)、厚度(du)(du)、变(bian)(bian)(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)(xing)程(cheng)(cheng)度(du)(du)以及设备能力等，同(tong)(tong)时(shi)(shi)应(ying)(ying)考虑(lv)材料的(de)(de)(de)原(yuan)始(shi)热(re)处理状态和(he)终使用(yong)条件(jian)(jian)(jian)(jian)。按照冲(chong)(chong)压(ya)(ya)(ya)(ya)时(shi)(shi)的(de)(de)(de)温度(du)(du)情况(kuang)有(you)冷(leng)冲(chong)(chong)压(ya)(ya)(ya)(ya)和(he)热(re)冲(chong)(chong)压(ya)(ya)(ya)(ya)两种(zhong)方式。这取决于(yu)精密小(xiao)(xiao)五金(jin)拉(la)(la)伸(shen)(shen)件(jian)(jian)(jian)(jian)材料的(de)(de)(de)强度(du)(du)、厚度(du)(du)、变(bian)(bian)(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)(xing)(xing)程(cheng)(cheng)度(du)(du)以及设备能力等。盐田区铁(tie)镍(nie)合金(jin)4J33连接(jie)台加工(gong)(gong)精密拉(la)(la)伸(shen)(shen)五金(jin)件(jian)(jian)(jian)(jian)

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