精(jing)密零件加(jia)(jia)工(gong)是一種機械加(jia)(jia)工(gong)，更(geng)加(jia)(jia)精(jing)準(zhun)，是較高(gao)的生產機械和加(jia)(jia)工(gong)工(gong)藝。伴隨著(zhu)現代化的發展，精(jing)密機械加(jia)(jia)工(gong)的類型越(yue)來越(yue)多(duo)，方位越(yue)來越(yue)細，越(yue)來越(yue)系統化。機械設(she)備由很(hen)多(duo)不一樣的小零件構成，每一個零件都起著(zhu)重要的作用。

為了更好(hao)地(di)保證(zheng)精密(mi)(mi)(mi)零(ling)件(jian)加(jia)(jia)(jia)工(gong)(gong)(gong)精密(mi)(mi)(mi)度(du)(du)，將初加(jia)(jia)(jia)工(gong)(gong)(gong)和深度(du)(du)加(jia)(jia)(jia)工(gong)(gong)(gong)的(de)(de)機(ji)(ji)械(xie)零(ling)件(jian)分離。因為在(zai)加(jia)(jia)(jia)工(gong)(gong)(gong)不(bu)光滑(hua)的(de)(de)機(ji)(ji)械(xie)零(ling)件(jian)時要開(kai)展很多(duo)鉆削，產品(pin)工(gong)(gong)(gong)件(jian)承擔很大(da)的(de)(de)切(qie)削速度(du)(du)，夾持力，熱(re)值多(duo)，而且機(ji)(ji)械(xie)零(ling)件(jian)的(de)(de)表層具備顯著的(de)(de)冷作硬(ying)化狀況，存有較(jiao)大(da)的(de)(de)內部(bu)地(di)應力。如何持續加(jia)(jia)(jia)工(gong)(gong)(gong)粗機(ji)(ji)械(xie)零(ling)件(jian)和細(xi)致機(ji)(ji)械(xie)零(ling)件(jian)，因地(di)應力的(de)(de)再次遍布(bu)，深度(du)(du)加(jia)(jia)(jia)工(gong)(gong)(gong)后零(ling)件(jian)的(de)(de)精密(mi)(mi)(mi)度(du)(du)將迅速缺失。精密(mi)(mi)(mi)零(ling)件(jian)加(jia)(jia)(jia)工(gong)(gong)(gong)線路中(zhong)，常分配熱(re)處(chu)理(li)方(fang)法(fa)。熱(re)處(chu)理(li)工(gong)(gong)(gong)藝全過(guo)程(cheng)的(de)(de)部(bu)位分配：為了更好(hao)地(di)提(ti)升金(jin)屬材料的(de)(de)加(jia)(jia)(jia)工(gong)(gong)(gong)性，如淬火、熱(re)處(chu)理(li)等一(yi)般分配在(zai)機(ji)(ji)械(xie)零(ling)件(jian)加(jia)(jia)(jia)工(gong)(gong)(gong)前開(kai)展。

在(zai)機(ji)械(xie)制造(zao)業的(de)(de)發展(zhan)中，大家越來越關(guan)(guan)心(xin)精(jing)密(mi)零件(jian)(jian)加(jia)工(gong)工(gong)藝的(de)(de)品質，選用有關(guan)(guan)的(de)(de)方式(shi)方法開展(zhan)解(jie)決(jue)，進一(yi)步提(ti)高了精(jing)密(mi)零件(jian)(jian)加(jia)工(gong)的(de)(de)精(jing)密(mi)度。