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机床床身加工(gong)分为(wei)粗(cu)加工(gong)、精加工(gong)、光整加工(gong)3个流程。
1、机床床身铸(zhu)件(jian)粗加工工序：
粗加工(gong)(gong)(gong)工(gong)(gong)(gong)序(xu)是指从工(gong)(gong)(gong)件上切去大部分加工(gong)(gong)(gong)余(yu)量，使(shi)其(qi)形状和尺(chi)寸接近成品(pin)要(yao)求(qiu)的工(gong)(gong)(gong)序(xu)。其(qi)加工(gong)(gong)(gong)精度较低，表(biao)(biao)面(mian)粗糙度值(zhi)较大，一般用(yong)于要(yao)求(qiu)不高(gao)或非(fei)配(pei)合表(biao)(biao)面(mian)的最终加工(gong)(gong)(gong)，也作为精加工(gong)(gong)(gong)的预加工(gong)(gong)(gong)。
2、机床床身铸件精加工(gong)工(gong)序：
精(jing)加(jia)(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)序是指从经(jing)过粗加(jia)(jia)工(gong)(gong)(gong)的(de)(de)表面(mian)上切去较(jiao)(jiao)少的(de)(de)加(jia)(jia)工(gong)(gong)(gong)余量(liang)，使工(gong)(gong)(gong)件(jian)达(da)到较(jiao)(jiao)高的(de)(de)加(jia)(jia)工(gong)(gong)(gong)精(jing)度及表面(mian)质量(liang)的(de)(de)工(gong)(gong)(gong)序。如工(gong)(gong)(gong)件(jian)表面(mian)无特别高的(de)(de)要求，精(jing)加(jia)(jia)工(gong)(gong)(gong)常作为(wei)最终加(jia)(jia)工(gong)(gong)(gong)。
3、机床床身铸(zhu)件光整加工(gong)工(gong)序：
光整(zheng)加工(gong)(gong)(gong)工(gong)(gong)(gong)序(xu)是指从经过精加工(gong)(gong)(gong)的工(gong)(gong)(gong)件表(biao)面(mian)上(shang)切(qie)去(qu)很少的加工(gong)(gong)(gong)余量，得到很高的加工(gong)(gong)(gong)精度(du)及(ji)很小的表(biao)面(mian)粗(cu)糙(cao)度(du)值。其中研磨(mo)、珩(heng)磨(mo)、超精加工(gong)(gong)(gong)及(ji)抛光等方法(fa)都属于光整(zheng)加工(gong)(gong)(gong)工(gong)(gong)(gong)序(xu)。