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分别采用超声磨削和普通磨削加工方法加工了几种脆性光学材料,研究了几种主要工艺参数对工件加工表面粗糙度的影响。结果表明,超声频率和振幅、金刚石磨料粒度、切深、工具的横向进给速度和旋转速度等工艺参数对表面粗糙度的影响较大。通过比较发现,超声磨削方法比普通磨削方法具有更好的加工表面粗糙度,更高的材料去除率,以及更低的工具磨损量。
Several kinds of brittle optical materials were processed by ultrasonic grinding and ordinary grinding respectively. The effects of several main process parameters on the surface roughness of the workpiece were studied. The results show that ultrasonic parameters such as ultrasonic frequency and amplitude, diamond abrasive grain size, depth of cut, horizontal feed speed and rotation speed of the tool greatly influence the surface roughness. By comparison, ultrasonic grinding has better machined surface roughness, higher material removal, and lower tool wear than conventional grinding methods.