SiCp/Al复合材料是具有优良物理、机械性能的难加工材料,常规切削加工存在加工精度及表面质量差的问题。为解决此类材料精密加工问题,采用超声振动复合切削加工方法,设计了专用的超声振动复合切削加工装置,并进行切削加工试验研究。试验结果表明,超声振动切削加工可显著提高SiCp/Al复合材料加工精度及表面质量。 SiCp / Al composites are difficult to machine materials with excellent physical and mechanical properties. Conventional cutting has the problems of poor machining accuracy and poor surface quality. In order to solve the problem of precision machining of such materials, a special ultrasonic vibration compound cutting device was designed and the cutting process was studied by ultrasonic vibration combined cutting method. The experimental results show that ultrasonic vibration machining can significantly improve the machining accuracy and surface quality of SiCp / Al composites.