大連模具加工常用的加工方法主要有鑄造方法、切削加工方法和特種加工方法3大類。而且根據生產工藝的要求，所選用的加工設備也各不相同。結合自己多年的注射模具加工經驗(yan)，精辟地介紹了模具零部件高效銑削(xue)加(jia)工(gong)工(gong)序的編制(zhi)，希望對工(gong)程技術(shu)人員(yuan)有一定(ding)的幫助和借(jie)鑒作(zuo)用。

  在(zai)現代模(mo)具的(de)成(cheng)形制造中(zhong)，由于模(mo)具的(de)形面設(she)計日趨復雜，自由曲面所占比例不(bu)斷增加(jia)(jia)，因此對(dui)模(mo)具加(jia)(jia)工技術(shu)提出(chu)了更(geng)高要(yao)求(qiu)，在(zai)實踐中(zhong)為(wei)了提高模(mo)具的(de)加(jia)(jia)工效(xiao)率，不(bu)能一味地去追求(qiu)高速加(jia)(jia)工，有(you)時為(wei)了節(jie)約生(sheng)產成(cheng)本與提高生(sheng)產效(xiao)率，必須采用高效(xiao)加(jia)(jia)工方法，使一部分加(jia)(jia)工工序在(zai)普(pu)通機床上就可高效(xiao)率完成(cheng)。

  工(gong)藝規程必須針(zhen)對加工(gong)對象(xiang)，結(jie)合本企業實際生產(chan)條件進(jin)行制定，技(ji)術上要先(xian)進(jin)。通(tong)過(guo)計算(suan)獲得恒定切(qie)削層面積和(he)材料去除率，刀具(ju)切(qie)入、切(qie)出工(gong)件時應盡可(ke)能采用傾斜式(shi)(或圓弧式(shi))切(qie)入、半(ban)精加工(gong)的主要目標(biao)是使(shi)工(gong)件輪廓(kuo)形狀平(ping)整，表面精加工(gong)余(yu)量(liang)均勻，這(zhe)對于(yu)工(gong)具(ju)鋼模具(ju)尤為重要。

  應對(dui)半精(jing)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)策(ce)略(lve)進(jin)行優化(hua)以保證半精(jing)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)后工(gong)(gong)(gong)(gong)(gong)件表面具有均(jun)勻的(de)(de)剩余加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)余量(liang)。優化(hua)過程包括：粗(cu)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)后輪廓的(de)(de)計算、大剩余加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)余量(liang)的(de)(de)計算、大允(yun)許加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)余量(liang)的(de)(de)確(que)定、模(mo)具的(de)(de)精(jing)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)策(ce)略(lve)取決(jue)于刀具與工(gong)(gong)(gong)(gong)(gong)件的(de)(de)接(jie)觸點。

  而刀(dao)(dao)具與工(gong)件的接觸(chu)點隨著加(jia)工(gong)表面(mian)(mian)的曲(qu)面(mian)(mian)斜(xie)率(lv)和(he)刀(dao)(dao)具有(you)效半(ban)徑的變化而變化。對于由多個曲(qu)面(mian)(mian)組合而成(cheng)的復雜曲(qu)面(mian)(mian)加(jia)工(gong)，應盡可能在一個工(gong)序中進行(xing)連續(xu)加(jia)工(gong)，而不是對各個曲(qu)面(mian)(mian)分別進行(xing)加(jia)工(gong)，以減少抬(tai)刀(dao)(dao)、下刀(dao)(dao)的次數。