不銹(xiu)鋼坯(pi)料的(de)(de)(de)端(duan)(duan)面加(jia)(jia)工(gong)(gong)設備主要完成(cheng)兩道工(gong)(gong)序,即平端(duan)(duan)面加(jia)(jia)工(gong)(gong)和(he)加(jia)(jia)工(gong)(gong)潤滑劑錐形體(ti)。采用多軸加(jia)(jia)工(gong)(gong)機床加(jia)(jia)工(gong)(gong)坯(pi)料端(duan)(duan)面的(de)(de)(de)一個例子是德國的(de)(de)(de)DSM12/1400=2/1型加(jia)(jia)工(gong)(gong)機床,在此機床上可同時完成(cheng)端(duan)(duan)面加(jia)(jia)工(gong)(gong)和(he)潤滑劑錐體(ti)的(de)(de)(de)加(jia)(jia)工(gong)(gong)。


  不(bu)銹(xiu)鋼(gang)坯料逐個被送到機床的第一個工位,一方面加工端面,另一方面初步車出錐體;隨后坯料進入第二個工位,進行錐體的精加工。機床可以加工φ140~250mm,長度350~700mm的坯料。


  加工(gong)平端面(mian)(mian)(mian)(mian)的表(biao)面(mian)(mian)(mian)(mian)粗(cu)糙度(du)為5μm,平端面(mian)(mian)(mian)(mian)與坯料軸(zhou)線(xian)垂直度(du)的偏差不(bu)大于0.2mm,錐體部軸(zhou)線(xian)與坯料軸(zhou)線(xian)的偏差不(bu)超(chao)過0.25mm,在端面(mian)(mian)(mian)(mian)加工(gong)中,被車(che)削(xue)的金(jin)屬層深(shen)度(du)為2mm.


  不(bu)銹(xiu)鋼(gang)坯(pi)料必(bi)須(xu)在前端(相當于穿孔(kong)筒內襯的(de)下端)加(jia)(jia)工(gong)成(cheng)圓角,在尾端加(jia)(jia)工(gong)成(cheng)喇叭口。而用于穿孔(kong)的(de)碳素鋼(gang)和低合金鋼(gang)坯(pi)料,只需在前端倒棱即可。機械加(jia)(jia)工(gong)后(hou)的(de)不(bu)銹(xiu)鋼(gang)坯(pi)料需要(yao)進行脫脂(zhi)處理。一(yi)般(ban)采(cai)用3%的(de)堿(jian)溶液,溫度為60~80℃,噴洗(xi)壓(ya)力500kPa.堿(jian)洗(xi)后(hou)再用熱水(shui)沖洗(xi),然后(hou)熱風(feng)吹干,防止(zhi)在加(jia)(jia)熱和擠壓(ya)過程中表(biao)面滲碳。