Study on a New Kind of Magnetic Abrasive Finishing by Using Alternating Magnetic Field for Ultra-Precision Plane Finishing

Abstract:

In this study, a new plane magnetic abrasive finishing method by using alternating magnetic field has been proposed to solve the problems such as the easy deformation and poorly restored of the magnetic brush in traditional magnetic abrasive finishing. Compared with the magnetic brush in traditional magnetic abrasive finishing, the magnetic brush can keep a relatively stable shape to finish the workpiece under the action of alternating magnetic field. In this paper, the variation of the finishing force in the alternating magnetic field is analyzed theoretically. In addition, in order to get the ultra-precision plane surface, the influence of the size of the magnetic particles, the size of the GC particles, and the frequency of the AC power on the finishing characteristics has been studied. The best experimental results show that the surface roughness of the workpiece is improved from 38 nm Ra to 6.33 nm Ra.

• Periodical: Materials Science Forum (Volume 977)
• Pages: 42-49
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.977.42
• Online since: February 2020
• Authors: Chao Wen Dong, Yan Hua Zou*, Hui Jun Xie
• Keywords: Alternating Current, Magnetic Abrasive Finishing, Ultra-Precision Finishing

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