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　　一(yi)些(xie)大口徑異型液壓缸(gang)以(yi)及活塞桿工(gong)件，如(ru)果對粗糙度(du)值(zhi)要求達到Ra0.2微米(mi)，普(pu)(pu)通加(jia)(jia)工(gong)手段就(jiu)比較吃力，例如(ru)，大型壓機上油缸(gang)，直徑600毫米(mi)以(yi)上，深度(du)500毫米(mi)左右，立車車削(xue)(xue)后(hou)可(ke)以(yi)達到尺寸要求，粗糙度(du)值(zhi)達到Ra1.6到3.2微米(mi)之間，普(pu)(pu)通工(gong)藝為車削(xue)(xue)后(hou)砂帶(dai)拋光，需要拋磨5到6個小(xiao)時(shi)，仍然難(nan)以(yi)達到要求，粉(fen)塵(chen)致使加(jia)(jia)工(gong)環境惡劣，且存在安全隱患。加(jia)(jia)工(gong)活塞類工(gong)件面臨(lin)同(tong)樣(yang)的問題，并且密封部位(wei)的溝槽采用普(pu)(pu)通工(gong)藝手段無法加(jia)(jia)工(gong)，由(you)于(yu)溝槽部位(wei)車削(xue)(xue)后(hou)比較粗糙，對密封圈(quan)磨損嚴重，在后(hou)期工(gong)件長時(shi)間使用中容易(yi)造(zao)成密封不嚴，造(zao)成泄漏。

　　采用(yong)(yong)電(dian)致(zhi)伸縮精整(zheng)設(she)備(bei)(bei)加(jia)(jia)工(gong)(gong)(gong)以(yi)上工(gong)(gong)(gong)件(jian)，使加(jia)(jia)工(gong)(gong)(gong)變得更為(wei)簡(jian)單，將工(gong)(gong)(gong)件(jian)車削尺寸加(jia)(jia)工(gong)(gong)(gong)到(dao)位后，再用(yong)(yong)電(dian)致(zhi)伸縮精整(zheng)設(she)備(bei)(bei)加(jia)(jia)工(gong)(gong)(gong)一(yi)遍(bian)，可以(yi)達(da)到(dao)Ra0.1微米(mi)，符合(he)質(zhi)量要(yao)求，加(jia)(jia)工(gong)(gong)(gong)時間更短，以(yi)直徑600毫(hao)米(mi)，深度500毫(hao)米(mi)左右工(gong)(gong)(gong)件(jian)為(wei)例，電(dian)致(zhi)伸縮精整(zheng)設(she)備(bei)(bei)加(jia)(jia)工(gong)(gong)(gong)僅需要(yao)30分鐘左右，活塞(sai)桿類工(gong)(gong)(gong)件(jian)的(de)溝槽(cao)等也可以(yi)輕(qing)松加(jia)(jia)工(gong)(gong)(gong)到(dao)Ra0.1微米(mi)以(yi)下，提高(gao)了(le)產品質(zhi)量，減少(shao)了(le)密(mi)封圈因溝槽(cao)光潔度差引起(qi)的(de)快(kuai)速(su)磨損，提高(gao)了(le)使用(yong)(yong)壽(shou)命。