精密(mi)零(ling)件(jian)加(jia)(jia)(jia)工(gong)是一(yi)種機械加(jia)(jia)(jia)工(gong)，更(geng)加(jia)(jia)(jia)精準(zhun)，是較高的(de)(de)(de)生產機械和加(jia)(jia)(jia)工(gong)工(gong)藝。伴隨(sui)著(zhu)現代(dai)化(hua)的(de)(de)(de)發展，精密(mi)機械加(jia)(jia)(jia)工(gong)的(de)(de)(de)類型越(yue)(yue)(yue)(yue)來越(yue)(yue)(yue)(yue)多(duo)，方位越(yue)(yue)(yue)(yue)來越(yue)(yue)(yue)(yue)細，越(yue)(yue)(yue)(yue)來越(yue)(yue)(yue)(yue)系統化(hua)。機械設備由很多(duo)不一(yi)樣的(de)(de)(de)小零(ling)件(jian)構(gou)成，每一(yi)個零(ling)件(jian)都(dou)起(qi)著(zhu)重要的(de)(de)(de)作用。

為(wei)了更好(hao)地(di)(di)保(bao)證精(jing)密(mi)零(ling)(ling)件(jian)(jian)(jian)(jian)加(jia)工(gong)(gong)精(jing)密(mi)度(du)，將初加(jia)工(gong)(gong)和深度(du)加(jia)工(gong)(gong)的(de)(de)(de)(de)機(ji)械零(ling)(ling)件(jian)(jian)(jian)(jian)分(fen)(fen)離(li)。因為(wei)在(zai)(zai)加(jia)工(gong)(gong)不光(guang)滑的(de)(de)(de)(de)機(ji)械零(ling)(ling)件(jian)(jian)(jian)(jian)時要開(kai)展很多(duo)鉆削，產品工(gong)(gong)件(jian)(jian)(jian)(jian)承(cheng)擔(dan)很大(da)的(de)(de)(de)(de)切削速(su)(su)度(du)，夾持力，熱(re)值多(duo)，而(er)且機(ji)械零(ling)(ling)件(jian)(jian)(jian)(jian)的(de)(de)(de)(de)表(biao)層具備顯著(zhu)的(de)(de)(de)(de)冷作硬化狀況，存有較大(da)的(de)(de)(de)(de)內部(bu)地(di)(di)應力。如何持續加(jia)工(gong)(gong)粗(cu)機(ji)械零(ling)(ling)件(jian)(jian)(jian)(jian)和細致機(ji)械零(ling)(ling)件(jian)(jian)(jian)(jian)，因地(di)(di)應力的(de)(de)(de)(de)再次遍布，深度(du)加(jia)工(gong)(gong)后零(ling)(ling)件(jian)(jian)(jian)(jian)的(de)(de)(de)(de)精(jing)密(mi)度(du)將迅(xun)速(su)(su)缺(que)失。精(jing)密(mi)零(ling)(ling)件(jian)(jian)(jian)(jian)加(jia)工(gong)(gong)線路中(zhong)，常(chang)分(fen)(fen)配(pei)熱(re)處理(li)方法。熱(re)處理(li)工(gong)(gong)藝全過程的(de)(de)(de)(de)部(bu)位分(fen)(fen)配(pei)：為(wei)了更好(hao)地(di)(di)提升(sheng)金屬材料的(de)(de)(de)(de)加(jia)工(gong)(gong)性，如淬火、熱(re)處理(li)等一般(ban)分(fen)(fen)配(pei)在(zai)(zai)機(ji)械零(ling)(ling)件(jian)(jian)(jian)(jian)加(jia)工(gong)(gong)前開(kai)展。

在機械制造(zao)業的發展中，大(da)家越來越關(guan)心精(jing)密零(ling)件(jian)加工(gong)工(gong)藝的品質，選(xuan)用有關(guan)的方式方法開展解決，進一步提高(gao)了精(jing)密零(ling)件(jian)加工(gong)的精(jing)密度。