Title: Research on machining mechanics and experiment of ultrasonic-magnetorheological compound finishing

Authors: F.H. Zhang, H.J. Wang, D.R. Luan

Addresses: School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, 150001, China. ' School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, 150001, China. ' School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, 150001, China

Abstract: In this paper, Ultrasonic-Magnetorheological Compound finishing (UMC finishing), which is a new kind of polishing method, is first presented for the ultraprecision machining of concave optical surface with small radius. The principle of UMC finishing is studied and experimental set-up is developed based on the foregoing study. Experiments are carried out to verify the mechanics of UMC finishing. The results show that the surface roughness of the polished optical glass by UMC finishing is on nano-scale, which can satisfy the optical surface quality requirement. Furthermore, UMC finishing can also have higher machining efficiency than magnetorheological finishing under the same experiment conditions.

Keywords: aspheric surfaces; magnetorheological finishing; polishing; ultrasonic finishing; ultraprecision machining; surface finishing; UMC finishing; concave optical surfaces; surface roughness; surface quality; glass polishing.

DOI: 10.1504/IJCAT.2007.015275

International Journal of Computer Applications in Technology, 2007 Vol.29 No.2/3/4, pp.252 - 256

Published online: 30 Sep 2007 *

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