精(jing)密零(ling)(ling)件加工(gong)是(shi)一(yi)(yi)種機械加工(gong)，更加精(jing)準，是(shi)較高的(de)生產機械和加工(gong)工(gong)藝(yi)。伴隨著現代化的(de)發展，精(jing)密機械加工(gong)的(de)類型越(yue)(yue)來越(yue)(yue)多，方(fang)位越(yue)(yue)來越(yue)(yue)細(xi)，越(yue)(yue)來越(yue)(yue)系(xi)統化。機械設備(bei)由很多不(bu)一(yi)(yi)樣(yang)的(de)小零(ling)(ling)件構成，每一(yi)(yi)個零(ling)(ling)件都起著重要的(de)作用。

為(wei)了更好地保證精(jing)(jing)密(mi)零(ling)件(jian)加(jia)工(gong)(gong)(gong)精(jing)(jing)密(mi)度，將初加(jia)工(gong)(gong)(gong)和深度加(jia)工(gong)(gong)(gong)的(de)(de)機(ji)械(xie)零(ling)件(jian)分(fen)(fen)離。因(yin)為(wei)在(zai)加(jia)工(gong)(gong)(gong)不光(guang)滑(hua)的(de)(de)機(ji)械(xie)零(ling)件(jian)時要開(kai)展很多鉆削，產品工(gong)(gong)(gong)件(jian)承擔(dan)很大的(de)(de)切削速度，夾持(chi)力，熱值多，而且機(ji)械(xie)零(ling)件(jian)的(de)(de)表(biao)層具備顯著的(de)(de)冷作硬(ying)化狀(zhuang)況，存(cun)有較大的(de)(de)內部(bu)地應力。如何持(chi)續加(jia)工(gong)(gong)(gong)粗機(ji)械(xie)零(ling)件(jian)和細致機(ji)械(xie)零(ling)件(jian)，因(yin)地應力的(de)(de)再(zai)次遍(bian)布(bu)，深度加(jia)工(gong)(gong)(gong)后零(ling)件(jian)的(de)(de)精(jing)(jing)密(mi)度將迅速缺失。精(jing)(jing)密(mi)零(ling)件(jian)加(jia)工(gong)(gong)(gong)線路中(zhong)，常分(fen)(fen)配(pei)熱處(chu)理方法。熱處(chu)理工(gong)(gong)(gong)藝(yi)全過程的(de)(de)部(bu)位分(fen)(fen)配(pei)：為(wei)了更好地提升金(jin)屬材料的(de)(de)加(jia)工(gong)(gong)(gong)性，如淬(cui)火、熱處(chu)理等一般分(fen)(fen)配(pei)在(zai)機(ji)械(xie)零(ling)件(jian)加(jia)工(gong)(gong)(gong)前開(kai)展。

在機械制(zhi)造業的發展中(zhong)，大家越來越關(guan)心精(jing)密(mi)零(ling)件加工工藝的品質，選用有關(guan)的方式(shi)方法開展解決，進(jin)一(yi)步提高(gao)了(le)精(jing)密(mi)零(ling)件加工的精(jing)密(mi)度。