機(ji)械(xie)加(jia)(jia)工性(xing)能不僅和企(qi)業(ye)的利益(yi)相關，還和安全性(xing)相關，在給企(qi)業(ye)帶來經(jing)濟效益(yi)的同時，數控機(ji)械(xie)加(jia)(jia)工，還可(ke)以有效降低(di)安全事故發生的概率。機(ji)械(xie)加(jia)(jia)工主要有精(jing)(jing)(jing)車、精(jing)(jing)(jing)鏜、精(jing)(jing)(jing)銑、精(jing)(jing)(jing)磨(mo)和研磨(mo)等工藝。精(jing)(jing)(jing)銑：用于加(jia)(jia)工形狀復(fu)雜(za)的鋁或(huo)鈹合(he)金(jin)(jin)結構件。依靠機(ji)床的導軌和主軸(zhou)的精(jing)(jing)(jing)度(du)來獲得(de)較(jiao)高(gao)的相互位置精(jing)(jing)(jing)度(du)。使用經(jing)仔細研磨(mo)的金(jin)(jin)剛石刀(dao)頭進行高(gao)速銑切可(ke)獲得(de)準確的鏡面(mian)。對零件進行這一工序呢，一般通過精(jing)(jing)(jing)密車削，研磨(mo)等操(cao)作，精(jing)(jing)(jing)密機(ji)械(xie)加(jia)(jia)工，常常能讓那些有色金(jin)(jin)屬材料制作的零件表(biao)面(mian)形成一定(ding)的光潔表(biao)面(mian)，比如(ru)我們(men)常說的鏡面(mian)效果。

精密(mi)機(ji)械(xie)(xie)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)的(de)(de)(de)形(xing)式根(gen)據不同的(de)(de)(de)材質工(gong)(gong)(gong)件(jian)(jian)(jian)和(he)產品的(de)(de)(de)要求而(er)有(you)(you)所(suo)差別(bie)。傳統的(de)(de)(de)精密(mi)機(ji)械(xie)(xie)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)方(fang)(fang)法(fa)就是(shi)我們經常(chang)聽到的(de)(de)(de)車、鉗(qian)、洗、刨、磨(mo)這些。而(er)隨著機(ji)械(xie)(xie)科技的(de)(de)(de)發展(zhan)，在(zai)精密(mi)機(ji)械(xie)(xie)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)方(fang)(fang)面，還出(chu)現了電(dian)鍍、線切(qie)割、鑄造、鍛造和(he)粉末(mo)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)等(deng)等(deng)。在(zai)進(jin)(jin)行機(ji)械(xie)(xie)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)的(de)(de)(de)時候，大(da)型機(ji)械(xie)(xie)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)，學會對零部(bu)件(jian)(jian)(jian)的(de)(de)(de)精度進(jin)(jin)行控制是(shi)很有(you)(you)必要的(de)(de)(de)一件(jian)(jian)(jian)事情，因為(wei)只有(you)(you)精度得到控制以后，才能夠讓加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)出(chu)來的(de)(de)(de)零部(bu)件(jian)(jian)(jian)更能夠滿足(zu)精密(mi)需求。機(ji)械(xie)(xie)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)是(shi)一種(zhong)用加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)機(ji)械(xie)(xie)對工(gong)(gong)(gong)件(jian)(jian)(jian)的(de)(de)(de)外形(xing)尺寸或性(xing)能進(jin)(jin)行改變的(de)(de)(de)過程。按被加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)的(de)(de)(de)工(gong)(gong)(gong)件(jian)(jian)(jian)處于的(de)(de)(de)溫(wen)度狀態(tai)﹐分為(wei)冷加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)和(he)熱加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)。

工(gong)(gong)(gong)序(xu)(xu)是(shi)組(zu)成(cheng)機械(xie)加(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)藝(yi)過(guo)程的(de)基本單(dan)元。所(suo)(suo)謂(wei)工(gong)(gong)(gong)序(xu)(xu)是(shi)指一個（或一組(zu)）工(gong)(gong)(gong)人，在一臺(tai)機床(chuang)上(或一個工(gong)(gong)(gong)作(zuo)地點），安徽機械(xie)加(jia)工(gong)(gong)(gong)，對同一工(gong)(gong)(gong)件（或同時(shi)對幾個工(gong)(gong)(gong)件）所(suo)(suo)連續(xu)完成(cheng)的(de)那(nei)一部分(fen)工(gong)(gong)(gong)藝(yi)過(guo)程。機械(xie)加(jia)工(gong)(gong)(gong)廠工(gong)(gong)(gong)藝(yi)過(guo)程又(you)可(ke)分(fen)為(wei)鑄造、鍛造、沖壓、焊接、機械(xie)加(jia)工(gong)(gong)(gong)、裝配等(deng)工(gong)(gong)(gong)藝(yi)過(guo)程，機械(xie)制(zhi)造工(gong)(gong)(gong)藝(yi)過(guo)程一般是(shi)指零件的(de)機械(xie)加(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)藝(yi)過(guo)程和機器的(de)裝配工(gong)(gong)(gong)藝(yi)過(guo)程的(de)總和，其他過(guo)程則稱為(wei)輔助過(guo)程，例如運輸(shu)、保管、動(dong)力供(gong)應、設備維修等(deng)。機械(xie)加(jia)工(gong)(gong)(gong)中的(de)設計(ji)(ji)基準和工(gong)(gong)(gong)藝(yi)基準是(shi)不一樣的(de)。設計(ji)(ji)基準，其是(shi)指在零件圖上用(yong)來確定其它點、線和面位置(zhi)的(de)基準。