Advances in Rotary Ultrasonic Elliptical Machining of Advanced Aviation Materials
WANG Jianjian1,2, ZHANG Jianfu1, FENG Pingfa1,3
1. Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China;
2. Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong 999077, China;
3. Division of Advanced Manufacturing, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
The rotary ultrasonic machining (RUM) is a superior method for the high-efficiency, precise and lowdamage machining of advanced aviation materials. In the conventional RUM, an ultrasonic-frequency longitudinal vibration is utilized on the high-speed rotational tools. However, in the rotary ultrasonic elliptical machining (RUEM), a 2-D elliptical vibration is utilized instead of the conventional 1-D longitudinal vibration to further improve the performance of RUM. Since the invention of the RUEM, many relevant researches on RUEM have been carried out. The basic principles of RUEM and vibration types including longitudinal-torsional, longitudinal-bending and double bending are briefly summarized. The research advances of RUEM from equipment to process, and including both abrasive machining and cutting are presented. Furthermore, the development trends of RUEM including machining mechanism, applications on new materials, and tools with multiple degree of freedoms are prospected.
2018, 
