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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 16 — Aug. 11, 2014
  • pp: 19262–19276

Belt-MRF for large aperture mirrors

Kai Ren, Xiao Luo, Ligong Zheng, Yang Bai, Longxiang Li, Haixiang Hu, and Xuejun Zhang  »View Author Affiliations

Optics Express, Vol. 22, Issue 16, pp. 19262-19276 (2014)

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With high-determinacy and no subsurface damage, Magnetorheological Finishing (MRF) has become an important tool in fabricating high-precision optics. But for large mirrors, the application of MRF is restricted by its small removal function and low material removal rate. In order to improve the material removal rate, shorten the processing cycle, we proposed a new MRF concept, named Belt-MRF to expand the application of MRF to large mirrors and made a prototype with a large remove function, using a belt instead of a very large polishing wheel to expand the polishing length. A series of experimental results on Silicon carbide (SiC) and BK 7 specimens and fabrication simulation verified that the Belt-MRF has high material removal rates, stable removal function and high convergence efficiency which makes it a promising technology for processing large aperture optical elements.

© 2014 Optical Society of America

OCIS Codes
(160.4670) Materials : Optical materials
(220.4610) Optical design and fabrication : Optical fabrication
(220.5450) Optical design and fabrication : Polishing

ToC Category:
Optical Devices

Original Manuscript: May 15, 2014
Revised Manuscript: July 10, 2014
Manuscript Accepted: July 22, 2014
Published: August 1, 2014

Kai Ren, Xiao Luo, Ligong Zheng, Yang Bai, Longxiang Li, Haixiang Hu, and Xuejun Zhang, "Belt-MRF for large aperture mirrors," Opt. Express 22, 19262-19276 (2014)

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