为了要使铸铁床面的导轨达到较高的表面光度和精度,故需将其刮研。但现在可用精鉋来代替这种繁重的体力劳动,并可大大地减少机床制造的劳动量。 根据机床厂加工重型机床工件(床身、工作台、支柱、横梁等)的实际经验证明。运用这种方法是合理而经济的。 精鉋的生产率要比刮研高 In order to make the cast iron rail surface to achieve a higher surface brightness and accuracy, it is necessary to scratch research. But fine planing can now be used to replace such heavy physical labor and greatly reduce the amount of labor in machine tool manufacture. According to the machine tool factory processing heavy machine parts (bed, workbench, pillars, beams, etc.) the actual experience that. It is reasonable and economical to use this method. Fine sharpening productivity than scratch high