中文摘要：

超声辅助磨削是一种适于加工陶瓷等硬脆材料的先进复合加工技术。在超声振动方向垂直于加工表面的条件下,采用金刚石杯形砂轮对碳化硅陶瓷进行超声辅助磨削与普通磨削试验。对两种方法的磨削力、力比及加工表面粗糙度进行了对比分析,并讨论了磨削用量变化对两种方法在上述指标中差异程度的影响。结果表明,与普通磨削相比,超声辅助磨削可显著降低磨削力,但一定程度上将导致加工表面质量变差。随着磨削用量的增大,超声辅助磨削与普通磨削之间的差异逐渐减弱,超声辅助磨削效果逐渐消失。

英文摘要：

Uhrasonic assisted grinding（UAG） is an outstanding combined processing technology suitable to machine hard brittle materials such as advanced ceramics. With the ultrasonic vibration vertical to the ground surface and with a cup diamond wheel, UAG and CG tests on silicon carbide （SiC）ceramics are conducted. Accordingly, the grinding force, grinding force ratio and the ground surface roughness between the two processing methods are analyzed comparatively. In addition, the effect of changing grinding parameters on the difference between UAG and CG is discussed. The results show that UAG can reduce the grinding force significantly, and can also cause the ground surface quality to become worse. With the increase of the grinding parameters, the differences between UAG and CG wear off, and the effect of ultrasonic vibration on the grind- ing process fades away.