对磨料流加工存在的壁面滑动现象进行了研究 .研究结果表明 :磨料平均速度存在着临界值 ,在高于平均速度时存在壁面滑动现象 .同时壁滑速度随磨料平均速度增加而增大 .磨料粘度升高 ,会使临界值平均速度减小 ,而壁滑速度增加的程度却增大 .存在壁滑是实现磨料流加工的前提条件 .磨料载体内加入润滑剂有利于产生壁滑 ,但过分的润滑会降低磨料游流的加工效果 ,因此 ,对某一加工条件 ,润滑剂的含量应有一最优值 . The wall sliding phenomenon existed in the abrasive flow processing was studied.The results show that the average velocity of the abrasive exists the critical value, and the wall slip occurs when the average velocity is higher than the average velocity, while the wall slip velocity increases with the increase of the average abrasive velocity. Viscosity increases, will make the average critical speed decreases, while the wall slip speed increases the degree of increase exists Wall slip is to achieve the prerequisite for abrasive flow processing. Add lubricant to the abrasive carrier wall slip, but too much Of the lubrication will reduce the abrasive flow processing effect, therefore, for a processing conditions, the lubricant content should have an optimal value.