采用(yong)數控(kong)操作(zuo)，可減少(shao)生產工人，節約生產成本；采用(yong)自動(dong)(dong)檢測及(ji)監控(kong)裝置(zhi)(zhi)，有利于(yu)提高工件的穩定(ding)(ding)性(xing)。機(ji)(ji)(ji)械(xie)(xie)(xie)(xie)(xie)零件加(jia)工上的點(dian)、線(xian)、面的實(shi)際位置(zhi)(zhi)與理(li)(li)想位置(zhi)(zhi)的符合程度(du)(du)。評定(ding)(ding)位置(zhi)(zhi)精(jing)(jing)(jing)度(du)(du)的項目按GB/T1182—1996規定(ding)(ding)，附近機(ji)(ji)(ji)械(xie)(xie)(xie)(xie)(xie)加(jia)工，有平行度(du)(du)、垂直度(du)(du)、傾斜度(du)(du)、同軸度(du)(du)、對稱度(du)(du)、位置(zhi)(zhi)度(du)(du)、圓跳(tiao)動(dong)(dong)和全(quan)跳(tiao)動(dong)(dong)等8項。位置(zhi)(zhi)精(jing)(jing)(jing)度(du)(du)是用(yong)位置(zhi)(zhi)誤差來控(kong)制的，機(ji)(ji)(ji)械(xie)(xie)(xie)(xie)(xie)精(jing)(jing)(jing)密(mi)加(jia)工，各項目的位置(zhi)(zhi)公差分為12個精(jing)(jing)(jing)度(du)(du)等級(ji)。機(ji)(ji)(ji)械(xie)(xie)(xie)(xie)(xie)加(jia)工的處(chu)理(li)(li)辦(ban)法有熱處(chu)理(li)(li)。熱處(chu)理(li)(li)工序的安(an)排是為了提高金(jin)屬的切(qie)削性(xing)能(neng)，數控(kong)機(ji)(ji)(ji)械(xie)(xie)(xie)(xie)(xie)加(jia)工中心，通常(chang)在(zai)機(ji)(ji)(ji)械(xie)(xie)(xie)(xie)(xie)加(jia)工前進(jin)行。為了消(xiao)除內(nei)應(ying)力，一般(ban)在(zai)粗加(jia)工之(zhi)后(hou)，精(jing)(jing)(jing)加(jia)工之(zhi)前進(jin)行。為了提高零件的機(ji)(ji)(ji)械(xie)(xie)(xie)(xie)(xie)性(xing)能(neng)，安(an)徽(hui)機(ji)(ji)(ji)械(xie)(xie)(xie)(xie)(xie)加(jia)工，滲(shen)碳、淬火、回火等，一般(ban)經過(guo)機(ji)(ji)(ji)械(xie)(xie)(xie)(xie)(xie)加(jia)工后(hou)才進(jin)行。

加(jia)(jia)工(gong)(gong)(gong)(gong)需要(yao)的(de)(de)機(ji)(ji)械由數(shu)顯銑(xian)床(chuang)(chuang)、數(shu)顯成型磨床(chuang)(chuang)、數(shu)顯車(che)(che)床(chuang)(chuang)、電火花機(ji)(ji)、磨床(chuang)(chuang)、加(jia)(jia)工(gong)(gong)(gong)(gong)中心(xin)、激光焊接、中走絲(si)、快走絲(si)、慢走絲(si)、外(wai)圓磨床(chuang)(chuang)、內(nei)圓磨床(chuang)(chuang)、精(jing)密車(che)(che)床(chuang)(chuang)等(deng)，可(ke)(ke)進行精(jing)密零(ling)件的(de)(de)車(che)(che)、銑(xian)、刨、磨等(deng)加(jia)(jia)工(gong)(gong)(gong)(gong)， 此類(lei)機(ji)(ji)械擅(shan)長精(jing)密零(ling)件的(de)(de)車(che)(che)、銑(xian)、刨、磨等(deng)加(jia)(jia)工(gong)(gong)(gong)(gong)，可(ke)(ke)以加(jia)(jia)工(gong)(gong)(gong)(gong)各種不(bu)規則形狀零(ling)件，加(jia)(jia)工(gong)(gong)(gong)(gong)精(jing)度可(ke)(ke)達2μm。機(ji)(ji)械加(jia)(jia)工(gong)(gong)(gong)(gong)廠(chang)工(gong)(gong)(gong)(gong)藝(yi)過程(cheng)(cheng)(cheng)又可(ke)(ke)分為(wei)鑄造(zao)(zao)、鍛(duan)造(zao)(zao)、沖壓、焊接、機(ji)(ji)械加(jia)(jia)工(gong)(gong)(gong)(gong)、裝配等(deng)工(gong)(gong)(gong)(gong)藝(yi)過程(cheng)(cheng)(cheng)，機(ji)(ji)械制造(zao)(zao)工(gong)(gong)(gong)(gong)藝(yi)過程(cheng)(cheng)(cheng)一(yi)(yi)般是(shi)指零(ling)件的(de)(de)機(ji)(ji)械加(jia)(jia)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)藝(yi)過程(cheng)(cheng)(cheng)和機(ji)(ji)器的(de)(de)裝配工(gong)(gong)(gong)(gong)藝(yi)過程(cheng)(cheng)(cheng)的(de)(de)總和，其他(ta)過程(cheng)(cheng)(cheng)則稱為(wei)輔(fu)助(zhu)過程(cheng)(cheng)(cheng)，例如(ru)運輸(shu)、保(bao)管(guan)、動力供應、設(she)備(bei)維修等(deng)。機(ji)(ji)械加(jia)(jia)工(gong)(gong)(gong)(gong)中的(de)(de)設(she)計基準和工(gong)(gong)(gong)(gong)藝(yi)基準是(shi)不(bu)一(yi)(yi)樣的(de)(de)。設(she)計基準，其是(shi)指在零(ling)件圖(tu)上用來確(que)定其它點、線(xian)和面位置的(de)(de)基準。

除了要(yao)重(zhong)視機(ji)械加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)的(de)(de)(de)(de)費用計算外(wai)，還要(yao)知道(dao)應怎樣進行正(zheng)確(que)計算，這樣才能(neng)得(de)到準確(que)結果(guo)和(he)正(zheng)確(que)數(shu)值(zhi)，從而避免(mian)錯(cuo)誤(wu)結果(guo)和(he)得(de)到錯(cuo)誤(wu)數(shu)值(zhi)。工(gong)(gong)(gong)(gong)藝路線(xian)的(de)(de)(de)(de)擬定(ding)(ding)是(shi)(shi)(shi)制定(ding)(ding)工(gong)(gong)(gong)(gong)藝過(guo)程的(de)(de)(de)(de)總體布局(ju)，主要(yao)任務是(shi)(shi)(shi)選擇各(ge)個表(biao)(biao)面(mian)的(de)(de)(de)(de)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)方(fang)法(fa)(fa)，確(que)定(ding)(ding)各(ge)個表(biao)(biao)面(mian)的(de)(de)(de)(de)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)順序，以及(ji)整個工(gong)(gong)(gong)(gong)藝過(guo)程中工(gong)(gong)(gong)(gong)序數(shu)目的(de)(de)(de)(de)多少等。工(gong)(gong)(gong)(gong)藝路線(xian)擬定(ding)(ding)須遵循一(yi)定(ding)(ding)的(de)(de)(de)(de)原則(ze)。應使工(gong)(gong)(gong)(gong)藝過(guo)程有較高的(de)(de)(de)(de)生產加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)效率，通過(guo)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)得(de)到成(cheng)品(pin)能(neng)盡快正(zheng)常使用；三(san)是(shi)(shi)(shi)應設(she)法(fa)(fa)降(jiang)低制造成(cheng)本(ben)；四是(shi)(shi)(shi)要(yao)能(neng)夠(gou)(gou)減(jian)輕人(ren)工(gong)(gong)(gong)(gong)作業強(qiang)度(du)，以及(ji)還能(neng)夠(gou)(gou)讓(rang)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)安(an)全進行。