零部件加工(gong)(gong)軸(zhou)類(lei)零件在各(ge)種機械(xie)設備中(zhong)啟著(zhu)傳遞扭矩以及承受(shou)加載的作用，因此其對尺寸(cun)以及精度的要(yao)求極高。通常(chang)軸(zhou)類(lei)零件從(cong)毛坯(pi)到(dao)成品(pin)需(xu)要(yao)經過多種工(gong)(gong)藝，同(tong)時(shi)也需(xu)要(yao)用到(dao)各(ge)種加工(gong)(gong)設備。

軸(zhou)類零件的(de)(de)主要加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)表(biao)面(mian)(mian)是外表(biao)面(mian)(mian)和常見的(de)(de)異(yi)形表(biao)面(mian)(mian)。因此，應根據各種精(jing)度等(deng)級和表(biao)面(mian)(mian)粗糙(cao)度要求(qiu)選擇(ze)較合(he)適的(de)(de)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)方(fang)法。基本的(de)(de)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)可歸納為四(si)種。首(shou)先是從粗車到半精(jing)車，再到精(jing)車的(de)(de)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)。這類加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)非(fei)常適用于階(jie)梯軸(zhou)和空心軸(zhou)等(deng)軸(zhou)類零件外圓加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)選擇(ze)的(de)(de)重要的(de)(de)工(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)工(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)。

第二中加工路線是先粗車到半精車、再到粗磨，后采用精磨的加工工藝。對于黑色金屬材料、精度要求較高、表面粗糙度要求小和需要淬火的軸類零件而言，這種加工路線是更好的選擇，因為精磨削是軸類零件理想的后續加工工藝。