Title: Two-axis ultrasonic vibration transducer driven by single actuator and its application in precision polishing

Authors: Zhiqiang Xu; Shaohui Yin; Fengjun Chen; Jianwu Yu

Addresses: National Engineering Research Center for High Efficiency Grinding, Hunan University, Yuelushan, Changsha City, Hunan, 410082, China ' National Engineering Research Center for High Efficiency Grinding, Hunan University, Yuelushan, Changsha City, Hunan, 410082, China; CZ-HNU Institute of Machinery Equipment, Changzhou, Jiangsu, 213164, China ' National Engineering Research Center for High Efficiency Grinding, Hunan University, Yuelushan, Changsha City, Hunan, 410082, China; CZ-HNU Institute of Machinery Equipment, Changzhou, Jiangsu, 213164, China ' National Engineering Research Center for High Efficiency Grinding, Hunan University, Yuelushan, Changsha City, Hunan, 410082, China

Abstract: The ultrasonically assisted polishing (UAP) has been successfully applied to precision polishing due to its good surface quality and high removal efficiency. In this paper, the mode of UAP with two-axis ultrasonic vibration was introduced, a novel asymmetrical structural model of two-axis ultrasonic vibration transducer driven by the single actuator was developed, the principle of new transducer was explained, and its detailed structure was determined by assistance of finite element method (FEM) analysis. Polishing experiments were carried out on tungsten carbide mould with the developed transducer, the relationship of the polishing parameters and the surface roughness were analysed. The experimental results show that the workpiece surface quality with presented method changed from the original Ra 20.1 nm to 5.0 nm.

Keywords: ultrasonically assisted polishing; UAP; surface roughness; tungsten carbide; surface quality; ultrasonic vibration transducers; actuators; precision polishing; finite element method; FEM.

DOI: 10.1504/IJAT.2015.070549

International Journal of Abrasive Technology, 2015 Vol.7 No.1, pp.1 - 13

Received: 24 Apr 2014
Accepted: 13 Aug 2014
Published online: 10 Jul 2015 *

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