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 如何進行機(ji)(ji)械(xie)加(jia)(jia)工(gong)工(gong)序的設計？東莞機(ji)(ji)械(xie)加(jia)(jia)工(gong)工(gong)序的定(ding)義(yi)是(shi)什么？很(hen)多機(ji)(ji)械(xie)加(jia)(jia)工(gong)廠(chang)(chang)廠(chang)(chang)家都(dou)會有(you)這樣一(yi)個問題，對機(ji)(ji)械(xie)加(jia)(jia)工(gong)工(gong)序有(you)自己的理解。所謂機(ji)(ji)械(xie)加(jia)(jia)工(gong)工(gong)序是(shi)指完(wan)(wan)成(cheng)(cheng)一(yi)個工(gong)件(jian)，所需要(yao)的步驟(zou)。這個步驟(zou)可以(yi)是(shi)由單獨(du)一(yi)個人完(wan)(wan)成(cheng)(cheng)的，也(ye)可以(yi)是(shi)有(you)很(hen)多人共同(tong)完(wan)(wan)成(cheng)(cheng)的；工(gong)件(jian)可以(yi)是(shi)一(yi)個，也(ye)可以(yi)的多個。
如何設(she)計(ji)機械加工工序，這是每個廠(chang)家必須面臨的(de)問題(ti)。不(bu)同的(de)生產設(she)備(bei)，不(bu)同的(de)生產規(gui)模，不(bu)同的(de)生產條件，不(bu)同的(de)人員配備(bei)，所設(she)計(ji)的(de)工藝也不(bu)盡(jin)相同。但是原理是相通的(de)，
    一般，單件(jian)(jian)(jian)產品，可交由師傅(fu)，自己全權處理；大批(pi)量(liang)零(ling)件(jian)(jian)(jian)，必須(xu)由專人(ren)下(xia)料，開(kai)粗(cu)，粗(cu)加工(gong)(gong)(gong)和精(jing)(jing)加工(gong)(gong)(gong)才可以快(kuai)速有(you)效的生產。為了保(bao)證加工(gong)(gong)(gong)精(jing)(jing)度，粗(cu)、精(jing)(jing)加工(gong)(gong)(gong)最好分開(kai)進行。因(yin)為粗(cu)加工(gong)(gong)(gong)時，切削(xue)量(liang)大，工(gong)(gong)(gong)件(jian)(jian)(jian)所(suo)受切削(xue)力、夾緊力大，發熱量(liang)多，以及加工(gong)(gong)(gong)表(biao)面有(you)較(jiao)顯著(zhu)的加工(gong)(gong)(gong)硬化現象，工(gong)(gong)(gong)件(jian)(jian)(jian)內部存在(zai)著(zhu)較(jiao)大的內應(ying)力，如果(guo)粗(cu)、粗(cu)加工(gong)(gong)(gong)連續進行，則精(jing)(jing)加工(gong)(gong)(gong)后(hou)的零(ling)件(jian)(jian)(jian)精(jing)(jing)度會因(yin)為應(ying)力的重新分布而很快(kuai)喪失。對(dui)于(yu)某(mou)些加工(gong)(gong)(gong)精(jing)(jing)度要求高的零(ling)件(jian)(jian)(jian)。在(zai)粗(cu)加工(gong)(gong)(gong)之后(hou)和精(jing)(jing)加工(gong)(gong)(gong)之前，還應(ying)安排低溫(wen)退火或時效處理工(gong)(gong)(gong)序(xu)來(lai)消除內應(ying)力。