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 如(ru)何(he)進(jin)行機(ji)(ji)(ji)械(xie)加工(gong)工(gong)序(xu)(xu)的(de)設計？東(dong)莞機(ji)(ji)(ji)械(xie)加工(gong)工(gong)序(xu)(xu)的(de)定義是什么(me)？很(hen)多機(ji)(ji)(ji)械(xie)加工(gong)廠(chang)廠(chang)家都會有(you)這樣一個(ge)(ge)問(wen)題，對機(ji)(ji)(ji)械(xie)加工(gong)工(gong)序(xu)(xu)有(you)自(zi)己的(de)理解。所(suo)謂(wei)機(ji)(ji)(ji)械(xie)加工(gong)工(gong)序(xu)(xu)是指完(wan)成(cheng)一個(ge)(ge)工(gong)件，所(suo)需(xu)要的(de)步(bu)(bu)驟。這個(ge)(ge)步(bu)(bu)驟可(ke)以(yi)是由(you)單獨一個(ge)(ge)人(ren)完(wan)成(cheng)的(de)，也可(ke)以(yi)是有(you)很(hen)多人(ren)共同完(wan)成(cheng)的(de)；工(gong)件可(ke)以(yi)是一個(ge)(ge)，也可(ke)以(yi)的(de)多個(ge)(ge)。
如何設計(ji)機械(xie)加工工序，這是每個廠家必須面臨(lin)的(de)問題(ti)。不同的(de)生(sheng)(sheng)產設備，不同的(de)生(sheng)(sheng)產規模，不同的(de)生(sheng)(sheng)產條件，不同的(de)人員配備，所設計(ji)的(de)工藝(yi)也不盡(jin)相(xiang)同。但是原理是相(xiang)通的(de)，
    一般，單件(jian)產(chan)品，可交(jiao)由師(shi)傅，自己(ji)全權(quan)處(chu)理；大(da)批量(liang)零件(jian)，必須由專人下料，開粗(cu)(cu)，粗(cu)(cu)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)和精(jing)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)才(cai)可以快速有效的(de)生產(chan)。為了保證加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)精(jing)度，粗(cu)(cu)、精(jing)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)最好分開進(jin)行(xing)。因為粗(cu)(cu)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)時，切(qie)削量(liang)大(da)，工(gong)(gong)(gong)(gong)(gong)件(jian)所受切(qie)削力、夾緊力大(da)，發熱量(liang)多，以及加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)表面(mian)有較(jiao)顯(xian)著的(de)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)硬化現象(xiang)，工(gong)(gong)(gong)(gong)(gong)件(jian)內(nei)部存在著較(jiao)大(da)的(de)內(nei)應(ying)力，如果粗(cu)(cu)、粗(cu)(cu)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)連(lian)續進(jin)行(xing)，則精(jing)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)后(hou)的(de)零件(jian)精(jing)度會因為應(ying)力的(de)重新分布而很快喪失。對于某些加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)精(jing)度要求(qiu)高的(de)零件(jian)。在粗(cu)(cu)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)之后(hou)和精(jing)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)之前，還應(ying)安排低溫退火或時效處(chu)理工(gong)(gong)(gong)(gong)(gong)序來(lai)消除內(nei)應(ying)力。