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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 19 — Jul. 1, 2011
  • pp: 3321–3329

Research on error control and compensation in magnetorheological finishing

Yifan Dai, Hao Hu, Xiaoqiang Peng, Jianmin Wang, and Feng Shi  »View Author Affiliations

Applied Optics, Vol. 50, Issue 19, pp. 3321-3329 (2011)

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Although magnetorheological finishing (MRF) is a deterministic finishing technology, the machining results always fall short of simulation precision in the actual process, and it cannot meet the precision requirements just through a single treatment but after several iterations. We investigate the reasons for this problem through simulations and experiments. Through controlling and compensating the chief errors in the manufacturing procedure, such as removal function calculation error, positioning error of the removal function, and dynamic performance limitation of the CNC machine, the residual error convergence ratio (ratio of figure error before and after processing) in a single process is obviously increased, and higher figure precision is achieved. Finally, an improved technical process is presented based on these researches, and the verification experiment is accomplished on the experimental device we developed. The part is a circular plane mirror of fused silica material, and the surface figure error is improved from the initial λ / 5 [peak-to-valley (PV) λ = 632.8 nm ], λ / 30 [root-mean-square (rms)] to the final λ / 40 (PV), λ / 330 (rms) just through one iteration in 4.4 min . Results show that a higher convergence ratio and processing precision can be obtained by adopting error control and compensation techniques in MRF.

© 2011 Optical Society of America

OCIS Codes
(220.0220) Optical design and fabrication : Optical design and fabrication
(220.4610) Optical design and fabrication : Optical fabrication

ToC Category:
Optical Design and Fabrication

Original Manuscript: March 9, 2011
Manuscript Accepted: April 18, 2011
Published: July 1, 2011

Yifan Dai, Hao Hu, Xiaoqiang Peng, Jianmin Wang, and Feng Shi, "Research on error control and compensation in magnetorheological finishing," Appl. Opt. 50, 3321-3329 (2011)

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