精(jing)密零件加工(gong)是一(yi)(yi)種機械加工(gong)，更加精(jing)準，是較高的生產機械和(he)加工(gong)工(gong)藝。伴(ban)隨著現代(dai)化的發展(zhan)，精(jing)密機械加工(gong)的類型越(yue)來(lai)越(yue)多(duo)，方位越(yue)來(lai)越(yue)細(xi)，越(yue)來(lai)越(yue)系統(tong)化。機械設備由(you)很多(duo)不一(yi)(yi)樣的小(xiao)零件構成，每一(yi)(yi)個零件都起著重要的作用(yong)。

為(wei)了更(geng)好(hao)(hao)地保證精(jing)密(mi)(mi)零(ling)(ling)件(jian)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)精(jing)密(mi)(mi)度，將(jiang)初加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)和深(shen)度加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)的(de)(de)(de)機械(xie)(xie)零(ling)(ling)件(jian)分(fen)離。因為(wei)在(zai)(zai)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)不光滑的(de)(de)(de)機械(xie)(xie)零(ling)(ling)件(jian)時要開展很(hen)多鉆削，產品工(gong)(gong)(gong)(gong)(gong)(gong)(gong)件(jian)承擔很(hen)大的(de)(de)(de)切削速度，夾持(chi)力，熱(re)值(zhi)多，而(er)且機械(xie)(xie)零(ling)(ling)件(jian)的(de)(de)(de)表(biao)層(ceng)具備顯著的(de)(de)(de)冷作硬(ying)化狀況，存(cun)有較大的(de)(de)(de)內部地應力。如何持(chi)續加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)粗機械(xie)(xie)零(ling)(ling)件(jian)和細致機械(xie)(xie)零(ling)(ling)件(jian)，因地應力的(de)(de)(de)再次遍(bian)布，深(shen)度加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)后(hou)零(ling)(ling)件(jian)的(de)(de)(de)精(jing)密(mi)(mi)度將(jiang)迅速缺失。精(jing)密(mi)(mi)零(ling)(ling)件(jian)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)線路中，常分(fen)配(pei)熱(re)處(chu)理方法(fa)。熱(re)處(chu)理工(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝全(quan)過(guo)程的(de)(de)(de)部位分(fen)配(pei)：為(wei)了更(geng)好(hao)(hao)地提升金屬材料的(de)(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)性(xing)，如淬火、熱(re)處(chu)理等一般分(fen)配(pei)在(zai)(zai)機械(xie)(xie)零(ling)(ling)件(jian)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)前開展。

在機械制造業的(de)發展(zhan)中，大家(jia)越來越關(guan)心精(jing)密零件加工工藝的(de)品(pin)質，選用有關(guan)的(de)方(fang)式方(fang)法(fa)開(kai)展(zhan)解決，進一步提高了精(jing)密零件加工的(de)精(jing)密度。