半連續鑄造法生產的鋁單板合(he)金(jin)鑄錠(ding)(ding)，其(qi)(qi)表面常有偏(pian)(pian)析瘤、夾渣，結疤和(he)裂(lie)(lie)(lie)紋等缺陷(xian)(xian)，對面積大的缺陷(xian)(xian)，采用鑄錠(ding)(ding)銑面，即用銑削(xue)或(huo)創削(xue)法除(chu)去層表皮。由于偏(pian)(pian)析瘤中合(he)金(jin)元(yuan)素含量較商，在(zai)熱機(ji)時塑性(xing)很低易被壓(ya)碎或(huo)壓(ya)裂(lie)(lie)(lie)、碎裂(lie)(lie)(lie)的金(jin)屬及其(qi)(qi)所(suo)含灰生和(he)聯物壓(ya)人(ren)板面后(hou)將(jiang)造成(cheng)金(jin)成(cheng)壓(ya)人(ren)或(huo)非金(jin)屬、壓(ya)人(ren)缺陷(xian)(xian)。其(qi)(qi)表面缺陷(xian)(xian)如(ru)不鐵神，必將(jiang)惡化產(chan)品質量。

    鋁單(dan)(dan)板鑄(zhu)錠的(de)(de)(de)銑(xian)面(mian)(mian)(mian)(mian)是在專(zhuan)用(yong)(yong)(yong)的(de)(de)(de)機(ji)床上進行(xing)的(de)(de)(de)，有(you)單(dan)(dan)面(mian)(mian)(mian)(mian)銑(xian)、雙(shuang)面(mian)(mian)(mian)(mian)銑(xian)、雙(shuang)面(mian)(mian)(mian)(mian)銑(xian)帶(dai)側面(mian)(mian)(mian)(mian)銑(xian)等(deng)。目前國內大多(duo)(duo)數中小型企(qi)業采(cai)(cai)用(yong)(yong)(yong)的(de)(de)(de)設備(bei)是單(dan)(dan)面(mian)(mian)(mian)(mian)銑(xian)，銑(xian)削過(guo)程需進行(xing)一(yi)次翻面(mian)(mian)(mian)(mian)，生(sheng)(sheng)產效率(lv)低，銑(xian)削面(mian)(mian)(mian)(mian)易機(ji)械損(sun)傷；國外大型鋁單(dan)(dan)板加工廠大多(duo)(duo)采(cai)(cai)用(yong)(yong)(yong)雙(shuang)面(mian)(mian)(mian)(mian)銑(xian)或雙(shuang)面(mian)(mian)(mian)(mian)銑(xian)帶(dai)側面(mian)(mian)(mian)(mian)銑(xian)，生(sheng)(sheng)產效率(lv)高，表面(mian)(mian)(mian)(mian)質量好。根據(ju)銑(xian)面(mian)(mian)(mian)(mian)時(shi)(shi)采(cai)(cai)用(yong)(yong)(yong)的(de)(de)(de)潤滑(hua)冷卻方(fang)式不同(tong)，可分為(wei)(wei)濕銑(xian)和干銑(xian)，濕銑(xian)采(cai)(cai)用(yong)(yong)(yong)乳液(ye)進行(xing)冷卻和潤滑(hua)，乳液(ye)濃度(du)一(yi)般為(wei)(wei)2% ~20%,銑(xian)削完畢需用(yong)(yong)(yong)航空洗(xi)油清擦或用(yong)(yong)(yong)蝕洗(xi)的(de)(de)(de)方(fang)法除掉表面(mian)(mian)(mian)(mian)殘留(liu)的(de)(de)(de)污物(wu)；干銑(xian)即銑(xian)面(mian)(mian)(mian)(mian)時(shi)(shi)不加冷卻潤滑(hua)劑，采(cai)(cai)用(yong)(yong)(yong)油霧潤滑(hua)，其優點是表面(mian)(mian)(mian)(mian)清潔無(wu)污物(wu)，銑(xian)削完畢即可裝爐(lu)加熱。