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 如(ru)何進行機械加(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)序(xu)的(de)(de)(de)設計(ji)？東莞(guan)機械加(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)序(xu)的(de)(de)(de)定義是什(shen)么(me)？很(hen)多(duo)機械加(jia)工(gong)(gong)(gong)廠廠家都會有(you)這(zhe)樣(yang)一個問題，對機械加(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)序(xu)有(you)自己的(de)(de)(de)理解(jie)。所謂(wei)機械加(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)序(xu)是指完(wan)成一個工(gong)(gong)(gong)件，所需要的(de)(de)(de)步驟。這(zhe)個步驟可(ke)(ke)以(yi)是由單獨一個人(ren)完(wan)成的(de)(de)(de)，也(ye)可(ke)(ke)以(yi)是有(you)很(hen)多(duo)人(ren)共同(tong)完(wan)成的(de)(de)(de)；工(gong)(gong)(gong)件可(ke)(ke)以(yi)是一個，也(ye)可(ke)(ke)以(yi)的(de)(de)(de)多(duo)個。
如何設(she)計(ji)機械加工(gong)工(gong)序，這是每個廠家必須面臨的(de)問題。不(bu)同的(de)生產設(she)備，不(bu)同的(de)生產規模，不(bu)同的(de)生產條(tiao)件(jian)，不(bu)同的(de)人員配備，所設(she)計(ji)的(de)工(gong)藝也(ye)不(bu)盡相同。但是原理(li)是相通的(de)，
    一般，單件(jian)(jian)產(chan)品，可(ke)交由(you)師傅，自己全權處(chu)理；大(da)批量(liang)零件(jian)(jian)，必須由(you)專人下料，開粗(cu)(cu)，粗(cu)(cu)加工(gong)(gong)(gong)(gong)(gong)和(he)精加工(gong)(gong)(gong)(gong)(gong)才(cai)可(ke)以快(kuai)速有效的(de)生產(chan)。為了保證加工(gong)(gong)(gong)(gong)(gong)精度(du)，粗(cu)(cu)、精加工(gong)(gong)(gong)(gong)(gong)最(zui)好分開進行(xing)。因(yin)為粗(cu)(cu)加工(gong)(gong)(gong)(gong)(gong)時(shi)，切削量(liang)大(da)，工(gong)(gong)(gong)(gong)(gong)件(jian)(jian)所(suo)受切削力(li)(li)、夾緊(jin)力(li)(li)大(da)，發熱量(liang)多，以及加工(gong)(gong)(gong)(gong)(gong)表面(mian)有較(jiao)顯(xian)著的(de)加工(gong)(gong)(gong)(gong)(gong)硬化(hua)現象，工(gong)(gong)(gong)(gong)(gong)件(jian)(jian)內部(bu)存在著較(jiao)大(da)的(de)內應(ying)力(li)(li)，如(ru)果粗(cu)(cu)、粗(cu)(cu)加工(gong)(gong)(gong)(gong)(gong)連續進行(xing)，則精加工(gong)(gong)(gong)(gong)(gong)后的(de)零件(jian)(jian)精度(du)會(hui)因(yin)為應(ying)力(li)(li)的(de)重新分布(bu)而(er)很快(kuai)喪失。對(dui)于某些加工(gong)(gong)(gong)(gong)(gong)精度(du)要求高的(de)零件(jian)(jian)。在粗(cu)(cu)加工(gong)(gong)(gong)(gong)(gong)之后和(he)精加工(gong)(gong)(gong)(gong)(gong)之前(qian)，還(huan)應(ying)安(an)排低(di)溫退火或時(shi)效處(chu)理工(gong)(gong)(gong)(gong)(gong)序(xu)來消除內應(ying)力(li)(li)。