大連模具加工電器盒模具模芯高效數控加工工藝為例，結合自己多年的注射模具加工經驗，精辟(pi)地介紹了模(mo)具(ju)零部件高效(xiao)銑削加(jia)(jia)工(gong)(gong)工(gong)(gong)序的(de)(de)(de)編制(zhi)，希望對(dui)工(gong)(gong)程技(ji)術(shu)人員有一定的(de)(de)(de)幫助和借鑒作(zuo)用(yong)。尤其在機床加(jia)(jia)工(gong)(gong)、數(shu)控系(xi)統(tong)、刀具(ju)系(xi)統(tong)、CAD/CAM軟件等相(xiang)關技(ji)術(shu)不斷發展(zhan)的(de)(de)(de)推(tui)動(dong)下，高速加(jia)(jia)工(gong)(gong)技(ji)術(shu)已越來越多(duo)地應用(yong)于模(mo)具(ju)的(de)(de)(de)制(zhi)造加(jia)(jia)工(gong)(gong)。

高速加工技術對模具加工工藝產生了巨大影響，改變了傳統模具加工采用的“退火→銑削加工→熱處理→磨削”或“電火花加工→手工打磨、拋光”等復雜冗長的工藝流程。用機械加工方(fang)法(fa)加工模具零部件時要充分考慮零件的材料、結構(gou)形狀(zhuang)、尺寸、精度和使用(yong)壽命等方(fang)面(mian)的不(bu)同要求。

采(cai)用合(he)理的(de)加(jia)工(gong)(gong)(gong)方(fang)法和工(gong)(gong)(gong)藝路線。盡可能通過(guo)加(jia)工(gong)(gong)(gong)設備來(lai)保證模具零部件(jian)的(de)加(jia)工(gong)(gong)(gong)質量，減(jian)少鉗工(gong)(gong)(gong)修配工(gong)(gong)(gong)作量，提高生產效率和降(jiang)低成本。工(gong)(gong)(gong)藝規程必須針對(dui)加(jia)工(gong)(gong)(gong)對(dui)象(xiang)，結合(he)本企業實際生產條(tiao)件(jian)進(jin)行制定(ding)，技術上要(yao)先進(jin)、經濟(ji)上要(yao)合(he)理。模具粗加(jia)工(gong)(gong)(gong)的(de)主要(yao)目標是追求單位(wei)時(shi)間內的(de)材料去除率，并為半(ban)精加(jia)工(gong)(gong)(gong)準備工(gong)(gong)(gong)件(jian)的(de)幾何輪廓。

在(zai)粗加(jia)工(gong)(gong)(gong)過(guo)程中通(tong)過(guo)利用國外先進(jin)的(de)CAD/CAM軟件可(ke)通(tong)過(guo)以下措施保持切削條件恒定，從(cong)而(er)獲得良好的(de)加(jia)工(gong)(gong)(gong)質量(liang)。避(bi)免將刀(dao)具埋(mai)入(ru)工(gong)(gong)(gong)件。如(ru)加(jia)工(gong)(gong)(gong)模具型腔時，應(ying)避(bi)免刀(dao)具垂(chui)直插入(ru)工(gong)(gong)(gong)件，而(er)應(ying)采用傾(qing)斜(xie)下刀(dao)方式(常用傾(qing)斜(xie)角(jiao)為(wei)20°～30°)，最(zui)好采用螺旋式下刀(dao)以降低刀(dao)具載(zai)荷；加(jia)工(gong)(gong)(gong)模具型芯時，應(ying)盡量(liang)先從(cong)工(gong)(gong)(gong)件外部下刀(dao)然(ran)后水平切入(ru)工(gong)(gong)(gong)件。