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具有相同表面粗糙度Ra值的零件,耐磨性相同。 The parts have the same wear resistance as long as their surface roughness Ra values are same.
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低表面粗糙度磨削的三个级别;加工表面粗糙度值为Ra()的磨削称为精密磨削;加工表面粗糙度为Ra()的磨削称为超精密磨削;加工表面粗糙度值低于Ra()的磨削称为镜面磨削。A、0.2~0.1μmB、0.05-0.025μmC、0.01μm
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