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A comparative study on magnetorheological planarization using modified magnetic yokes and brick magnet

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Abstract

The geometric shape of magnets was modified to improve surface planarity and polishing efficiency in magnetorheological planarization. Two modified permanent magnetic yokes and a magnetic brick were used as excitation units of magnetic field. Stress analysis indicated that the polishing stress of the horizontal magnetic yoke was smaller than that of the brick magnet, but greater than that of the sloping yoke. The performances of MR planarizations, including removal rate, roughness, and planarity, of the three magnetic sources were also compared. The results showed that the sloping yoke produced the lowest surface finish of 0.6 nm in R a and the best planarity of 0.7 μm in PV, and the brick magnet provided the highest removal efficiency.

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Authors and Affiliations

  1. School of Mechanical Engineering, University of South China, Hengyang, Hunan, 421001, People’s Republic of China

    Yongqiang Wang

  2. National Engineering Research Centre for High Efficiency Grinding, Hunan University, Changsha, Hunan, 410082, People’s Republic of China

    Yongqiang Wang & Shaohui Yin

  3. School of Mechanical and Mining Engineering, The University of Queensland, Queensland, 4072, Australia

    Han Huang

Authors
  1. Yongqiang Wang
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  2. Shaohui Yin
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  3. Han Huang
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Correspondence to Yongqiang Wang.

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Wang, Y., Yin, S. & Huang, H. A comparative study on magnetorheological planarization using modified magnetic yokes and brick magnet. Int J Adv Manuf Technol 91, 2831–2841 (2017). https://doi.org/10.1007/s00170-016-9908-2

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  • DOI: https://doi.org/10.1007/s00170-016-9908-2

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