中文摘要：

通过实验验证了砂轮约束磨粒喷射精密光整加工方法的有效性，利用M7120平面磨床对Q235A进行了喷射加工实验，用TALYSURF5轮廓仪测量了加工后的微观几何参数值，用扫描电镜和金相显微镜观察了表面微观形貌和断面金相组织变化。实验结果表明，该加工方法在表面粗糙度得到减小的同时，能明显去除磨削加工过度塑性变形，减少表面层污染和磨削烧伤，改善表面形状精度，实验结果和理论分析吻合，验证了该工艺方法的正确性。

英文摘要：

The newly abrasive jet finishing process with wheel as restraint is a kind of compound precision finishing process that combined with grinding and abrasive jet finishing machining. In the paper, the machining process validity was verified by experimental investigation. Experiments were performed with plane grinder M7120 and workpiece material Q235A steel which was ground with the surface roughness values of Ra = 0.6 μm. The machined surface morphology was studied using scanning electron microscope （SEM）, metallography microscope and microcosmic geometry parameters were measured with TALYSURF5 instrument. The experimental results show that the new processing method, not only can diminish grinding defects such as severe deformation, surface layer pollution and ground burnout, but also can improve the forming precision. The experimental result was in agreement with theory analyzed and the process validity was verified.