Magnetorheological polishing using a permanent magnetic yoke with straight air gap for ultra-smooth surface planarization

Wang, Y. Q., Yin, S. H., Huang, H., Chen, F. J. and Deng, G. J. (2015) Magnetorheological polishing using a permanent magnetic yoke with straight air gap for ultra-smooth surface planarization. Precision Engineering, 40 309-317. doi:10.1016/j.precisioneng.2014.11.001


Author Wang, Y. Q.
Yin, S. H.
Huang, H.
Chen, F. J.
Deng, G. J.
Title Magnetorheological polishing using a permanent magnetic yoke with straight air gap for ultra-smooth surface planarization
Journal name Precision Engineering   Check publisher's open access policy
ISSN 0141-6359
1873-2372
Publication date 2015-04-01
Year available 2014
Sub-type Article (original research)
DOI 10.1016/j.precisioneng.2014.11.001
Volume 40
Start page 309
End page 317
Total pages 9
Place of publication Philadelphia PA, United States
Publisher Elsevier
Collection year 2015
Language eng
Formatted abstract
A permanent magnetic yoke with a straight air gap was developed as the magnetic excitation unit, in order to improve the efficiency of magnetorheological (MR) polishing for ultra-smooth surface planarization. Finite element modelling was used to simulate the magnetic performance of the newly developed yoke, which was found to agree well with the experimental measurement. With the developed MR polishing apparatus, the effects of trough speed, work and excitation gap width, particle concentration within the MR fluid and workpiece size on the material removal rate were systematically investigated. Final tests were performed on glass specimens to examine the polishing performance. The polishing area in the developed process was much larger than that of the conventional MR finishing process with a carrier wheel and ultra-smooth surface of 1 nm in Ra was achieved.
Keyword Magnetorhelogical polishing
Permanent magnet yoke
Straight air gap
Material removal rate
Polishing mark
Ultra-smooth surface
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online ahead of print 11 Nov 2014

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2015 Collection
 
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