残余应力分布状态及表面租糙度是评定加工表面层质量的两个重要参数。本文在适应控力磨削系统中恒速磨削条件下,砂轮磨损对磨削残余应力分布和表面粗糙度的影响规律进行了试验研究。结果表明,砂轮磨损过程对磨削加工表面层质量,尤其是对磨削残余应力的性质、大小、分布状态影响很大。并提出了由σx/σ_t之比值判定砂轮磨钝的新方法。 Residual stress distribution and surface roughness is to assess the quality of the processing surface layer of the two important parameters. In this paper, the influence of grinding wheel wear on the residual stress distribution and surface roughness of grinding under constant speed grinding condition is experimentally studied. The results show that the grinding wheel wear process on the surface quality of grinding, especially for the grinding residual stress nature, size, distribution of a great influence. A new method of judging the grinding wheel blunt by the ratio of σx / σ_t is proposed.