中文摘要：

主要对砂轮约束磨粒喷射精密光整加工表面特性进行研究。利用平面磨床M7120和磨粒喷射装置对45钢进行喷射光整加工实验，用TALYSURF5轮廓仪测量加工后的微观几何参数值。用扫描电镜和金相显微镜观察表面微观形貌和断面金相组织变化。用HVS-1000型数字显微硬度计测量表面硬度。用X射线能谱仪对工件表面进行物相分析．用PW3208X射线衍射仪Cr靶辐射测试残余应力。实验结果表明。该加工方法在减小表面粗糙度值和均化波纹度的同时。不仅提高表面硬度，而且在光整加工表面产生残余压应力。从而提高了零件的使用寿命和精度保持性。

英文摘要：

The surface characteristics finished by abrasive jet with grinding wheel as restraint were experimentally investigated. Experiments were performed with plane grinder M7120 equiped with abrasive jet finishing device and workpiece material 45 steel which was ground with the surface roughness values of Rα = 0. 4 - 0. 6μm. The machined surface morphology was studied using Scanning Electron Microscope （ SEM） and microscope and microcosmic geometry parameters were measured with TALYSURF5 instrument. The surface hardness for ground and finished surface was measured with HVS- 1000 instrument and the phase structure was analyzed by X-ray energy dispersive spectram and residual stresses were measured by pw3208 X-ray diffraction. The Results show that longitudinal geometry parameter values were diminished and ripple was obviously improved comparing with ground surface. Furthermore, the finished surface has condensible residual stresses and high surface hardness comparability compared to grinding ma chining surface. As a result, life and precision consistency of finished workpiece were improved.