Optimization of the Removal Function of Dual-Rotation Magnetorheological Finishing

Yun Zhang; Zhi Jing Feng

doi:10.4028/www.scientific.net/MSF.874.70

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HomeMaterials Science ForumMaterials Science Forum Vol. 874Optimization of the Removal Function of...

Optimization of the Removal Function of Dual-Rotation Magnetorheological Finishing

Abstract:

Magnetorheological finishing (MRF) is an advanced polishing technique capable of rapidly converging to the required surface figure. In this article, dual-rotation MRF tool is used to generate centrosymmetric removal function that can be W-shaped or Gaussian-shaped. Using W-shaped removal function and Gaussian-shaped removal function respectively, this article compares the convergence of surface error by simulating the finishing process through iterative calculations. Furthermore, it compares mid-spatial-frequency surface error caused by the two removal functions, through 2D FFT and PSD estimation in the frequency domain. From simulation, this article proves that Gaussian-shaped removal function is more advantageous than W-shaped removal function. To solve the problem that the removal function obtained in dual-rotation MRF is W-shaped, this paper presents the method of adjusting the distance between the axes of self-rotation and co-rotation to secure Gaussian-shaped removal function. Finally, experiments have been conducted to demonstrate validity of the method.

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Periodical:

Materials Science Forum (Volume 874)

Pages:

70-78

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.874.70

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Online since:

October 2016

Authors:

Yun Zhang*, Zhi Jing Feng

Keywords:

Convergence of Surface Error, Dual-Rotation MRF, Frequency Domain, Gaussian-Shaped, Removal Function, W-Shaped

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* - Corresponding Author

References

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