在實踐出產(chan)過程(cheng)中，異型(xing)管的彎(wan)曲成形是異型(xing)管制作中首(shou)要的一道工序。其加工方法多種(zhong)多樣(yang)，如今我們選用較多的有手工壓(ya)形、模具壓(ya)形和彎(wan)管機(ji)彎(wan)形等方法：

(一)手工壓形

手式(shi)壓(ya)形(xing)常用(yong)的(de)設(she)備之(zhi)一為手動液壓(ya)機(ji)，有單柱(zhu)式(shi)和四柱(zhu)式(shi)液壓(ya)機(ji)等。這種加工(gong)(gong)(gong)方法活絡(luo)，適用(yong)范圍(wei)廣，對(dui)一些三給或多曲率組合的(de)異(yi)型(xing)管件(jian)比照(zhao)有用(yong)，但功(gong)率低，人工(gong)(gong)(gong)工(gong)(gong)(gong)作量大，曲線不光滑。所以我(wo)們首要運用(yong)手工(gong)(gong)(gong)成形(xing)進行修改工(gong)(gong)(gong)序及試(shi)制產(chan)品的(de)出產(chan);

(二)模具成形

模具(ju)成(cheng)形(xing)(xing)技能(neng)是選用四柱式壓(ya)力(li)機(ji)，設備不一樣曲(qu)(qu)率(lv)的模具(ju)，約束矩形(xing)(xing)冷(leng)彎型(xing)(xing)異(yi)形(xing)(xing)管成(cheng)形(xing)(xing)，首要(yao)運用于曲(qu)(qu)率(lv)較(jiao)小的構件(jian)(jian)，如側立柱等。異(yi)形(xing)(xing)管的彎曲(qu)(qu)力(li)和回(hui)彈力(li)由于多種(zhong)要(yao)素的影(ying)響，很難作準確的計算。成(cheng)形(xing)(xing)模具(ju)一般選用閱(yue)歷公司(si)計算與實測(ce)相結合(he)的方法進行計劃(hua)調整。成(cheng)形(xing)(xing)技能(neng)的特點是功率(lv)高，合(he)適(shi)批量出產，缺(que)點是對異(yi)型(xing)(xing)管的原(yuan)料(liao)懇求高，回(hui)彈要(yao)一起;模具(ju)約束不一樣批次的材料(liao)，回(hui)彈不一，難以調整。模具(ju)成(cheng)形(xing)(xing)技能(neng)對于加工曲(qu)(qu)率(lv)半徑大的構件(jian)(jian)比(bi)照(zhao)適(shi)合(he)，一些(xie)批量較(jiao)大并且通用性較(jiao)強的零部件(jian)(jian)我們可以選用模具(ju)或(huo)土胎(tai)成(cheng)形(xing)(xing);

(三)彎管機彎形

對于(yu)小曲率半(ban)徑的異型(xing)管(guan)(guan)(guan)件，選用(yong)手工(gong)(gong)成形(xing)或模具成形(xing)都(dou)難(nan)以習氣大(da)批量出產，我們運用(yong)的數控彎(wan)(wan)管(guan)(guan)(guan)機就(jiu)能滿足這(zhe)種異型(xing)管(guan)(guan)(guan)的懇(ken)求。數控彎(wan)(wan)管(guan)(guan)(guan)機的自動化程度高(gao)、功率高(gao)，能習氣各種不一樣的曲率的異型(xing)管(guan)(guan)(guan)出產。一般不需要投入(ru)許多的模具，運用(yong)方便。彎(wan)(wan)出的異型(xing)管(guan)(guan)(guan)與樣板的貼合度一般不大(da)于(yu)2mm。為了保(bao)證異型(xing)管(guan)(guan)(guan)的制作精度，一般都(dou)添加一道人(ren)工(gong)(gong)整(zheng)形(xing)工(gong)(gong)序。選用(yong)專用(yong)的整(zheng)形(xing)臺面等，經整(zheng)形(xing)后，異型(xing)管(guan)(guan)(guan)件與樣板不貼合度應在1mm以內。