切削液是一種用在金屬切削、磨加工過程中,用來冷卻和潤滑刀具和加工件的工業用液體,切削液由多種超強功能助劑經科學復合配合而成,同時具備良好的冷卻性能、潤滑性能、防銹性能、除油清洗功能、防腐功能、易稀釋特點。那么切削液在鉆孔中起到了什么作用呢?
眾所(suo)周知,深孔加工(孔徑之比(bi)大(da)于5.5),需(xu)要經(jing)(jing)過(guo)鉆、鏜(tang)、粗鉸(jiao)、研磨,滾(gun)壓(ya)等(deng)多道工(gong)序(xu)加工(gong)出(chu)有較(jiao)高(gao)(gao)(gao)精(jing)(jing)度(du)(du)(du)和(he)較(jiao)高(gao)(gao)(gao)表面(mian)粗糙度(du)(du)(du)的(de)孔。采用(yong)結構特殊的(de)高(gao)(gao)(gao)性能切(qie)削(xue)刀(dao)具和(he)近似全(quan)密封高(gao)(gao)(gao)壓(ya)冷卻潤滑(hua)系統,可將上述(shu)多道工(gong)序(xu)簡(jian)化為一(yi)次連(lian)續走刀(dao)完(wan)成相(xiang)當深度(du)(du)(du)的(de)高(gao)(gao)(gao)精(jing)(jing)度(du)(du)(du)和(he)低表面(mian)粗糙度(du)(du)(du)的(de)孔加工(gong)。效率高(gao)(gao)(gao),經(jing)(jing)濟效益顯著。
鉆孔使(shi)用(yong)(yong)(yong)(yong)一般(ban)的麻花鉆鉆孔,屬于(yu)粗加(jia)工(gong),鉆削(xue)(xue)時(shi)排屑困難,切(qie)削(xue)(xue)熱(re)不(bu)易導出往往造成刀刃退火(huo),影響(xiang)鉆頭使(shi)用(yong)(yong)(yong)(yong)壽(shou)命(ming)及加(jia)工(gong)效(xiao)率。選(xuan)用(yong)(yong)(yong)(yong)性能好的切(qie)削(xue)(xue)液(ye)(ye),可以使(shi)鉆頭的壽(shou)命(ming)延長(chang)數倍甚至更多(duo),生產率也可明(ming)顯提高。一般(ban)選(xuan)用(yong)(yong)(yong)(yong)極壓乳化液(ye)(ye)或極壓合(he)(he)成切(qie)削(xue)(xue)液(ye)(ye)。極壓合(he)(he)成切(qie)削(xue)(xue)液(ye)(ye)表(biao)面張力低(di),滲(shen)透(tou)性好,能及時(shi)冷卻(que)鉆頭,對延長(chang)刀具壽(shou)命(ming),提高加(jia)工(gong)效(xiao)率十分有效(xiao)。對于(yu)不(bu)銹鋼(gang)、耐(nai)熱(re)合(he)(he)金等難切(qie)削(xue)(xue)材料,可選(xuan)用(yong)(yong)(yong)(yong)低(di)粘度的極壓切(qie)削(xue)(xue)油。
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