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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 35 — Dec. 10, 2012
  • pp: 8373–8382

Investigation on removal features of multidistribution fixed abrasive diamond pellets used in the polishing of SiC mirrors

Zhichao Dong, Haobo Cheng, and Hon-Yuen Tam  »View Author Affiliations


Applied Optics, Vol. 51, Issue 35, pp. 8373-8382 (2012)
http://dx.doi.org/10.1364/AO.51.008373


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Abstract

To obtain removal functions (RFs) with high removal rate and stability in the polishing of silicon carbide mirror, an optical fabrication technology based on fixed abrasive diamond pellets (FADPs) is adopted. In this paper, we focus on the removal characteristics of FADPs, including removal profile, removal rate, stability of RFs, and surface roughness. Diamond pellets polishing is analyzed theoretically with respect to removal rate and stability. A universal algorithm is proposed for computing theoretical removal profile of different distribution models. By evaluating the cutoff frequency of RFs, optimized parameters including speed ratio and eccentricity are confirmed. A series of experiments are conducted to verify the effectiveness of the algorithm; within 300 min (even more), the pellets could provide highly stable RFs with about 5 times removal rate than loose abrasives; the surface roughness 4.86 nm is obtained.

© 2012 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

History
Original Manuscript: September 10, 2012
Revised Manuscript: October 24, 2012
Manuscript Accepted: October 24, 2012
Published: December 6, 2012

Citation
Zhichao Dong, Haobo Cheng, and Hon-Yuen Tam, "Investigation on removal features of multidistribution fixed abrasive diamond pellets used in the polishing of SiC mirrors," Appl. Opt. 51, 8373-8382 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-35-8373

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