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 如何進(jin)行(xing)機(ji)械(xie)加(jia)工(gong)工(gong)序(xu)的(de)(de)設計(ji)？東莞(guan)機(ji)械(xie)加(jia)工(gong)工(gong)序(xu)的(de)(de)定義是(shi)什么？很多(duo)機(ji)械(xie)加(jia)工(gong)廠(chang)廠(chang)家(jia)都會有(you)這(zhe)樣一個(ge)問題，對(dui)機(ji)械(xie)加(jia)工(gong)工(gong)序(xu)有(you)自己的(de)(de)理解。所(suo)謂機(ji)械(xie)加(jia)工(gong)工(gong)序(xu)是(shi)指完成一個(ge)工(gong)件(jian)，所(suo)需(xu)要的(de)(de)步(bu)驟。這(zhe)個(ge)步(bu)驟可以是(shi)由單獨一個(ge)人(ren)完成的(de)(de)，也(ye)可以是(shi)有(you)很多(duo)人(ren)共同(tong)完成的(de)(de)；工(gong)件(jian)可以是(shi)一個(ge)，也(ye)可以的(de)(de)多(duo)個(ge)。
如何(he)設計(ji)(ji)機械加工工序，這(zhe)是每個(ge)廠家必須面臨的(de)問題。不同的(de)生(sheng)產設備，不同的(de)生(sheng)產規模，不同的(de)生(sheng)產條(tiao)件(jian)，不同的(de)人(ren)員配備，所設計(ji)(ji)的(de)工藝也(ye)不盡相同。但是原理是相通的(de)，
    一(yi)般，單件(jian)(jian)產(chan)品，可交由師傅，自己全權處(chu)理；大批量零件(jian)(jian)，必須由專人(ren)下料，開粗(cu)，粗(cu)加(jia)(jia)工(gong)(gong)(gong)(gong)和精(jing)加(jia)(jia)工(gong)(gong)(gong)(gong)才可以快速有效(xiao)的(de)生產(chan)。為(wei)了保證加(jia)(jia)工(gong)(gong)(gong)(gong)精(jing)度(du)，粗(cu)、精(jing)加(jia)(jia)工(gong)(gong)(gong)(gong)最好分開進(jin)行。因為(wei)粗(cu)加(jia)(jia)工(gong)(gong)(gong)(gong)時，切削量大，工(gong)(gong)(gong)(gong)件(jian)(jian)所受(shou)切削力(li)(li)、夾緊力(li)(li)大，發(fa)熱量多(duo)，以及加(jia)(jia)工(gong)(gong)(gong)(gong)表面有較(jiao)顯著的(de)加(jia)(jia)工(gong)(gong)(gong)(gong)硬化現(xian)象，工(gong)(gong)(gong)(gong)件(jian)(jian)內(nei)部(bu)存在(zai)著較(jiao)大的(de)內(nei)應力(li)(li)，如果(guo)粗(cu)、粗(cu)加(jia)(jia)工(gong)(gong)(gong)(gong)連續進(jin)行，則(ze)精(jing)加(jia)(jia)工(gong)(gong)(gong)(gong)后(hou)的(de)零件(jian)(jian)精(jing)度(du)會因為(wei)應力(li)(li)的(de)重新分布而(er)很快喪失。對于某些加(jia)(jia)工(gong)(gong)(gong)(gong)精(jing)度(du)要求高的(de)零件(jian)(jian)。在(zai)粗(cu)加(jia)(jia)工(gong)(gong)(gong)(gong)之(zhi)后(hou)和精(jing)加(jia)(jia)工(gong)(gong)(gong)(gong)之(zhi)前，還應安排低溫退火或時效(xiao)處(chu)理工(gong)(gong)(gong)(gong)序(xu)來消除內(nei)應力(li)(li)。