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Proceedings Paper

Temporal stability and performance of MR polishing fluid
Author(s): Markus Schinhaerl; Elmar G. Pitschke; Rolf Rascher; Peter Sperber; Richard Stamp; Lyndon N. Smith; Gordon Smith
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Paper Abstract

The lifetime of standard magnetorheological (MR) polishing fluids, used for example in polishing machines for optical applications, is limited. Scanning electron microscope examinations as well as chemical analyses of the fluid had been undertaken in order to investigate reasons for limited lifetime. We found out that the removal rate decreases during the course of time. However, the usable fluid life is most limited by the point of time when the critical minimum amount of fluid, necessary to ensure circulation, is reached. The results in association with a new fluid conditioner show, that a standard MR polishing fluid may be used for longer periods than common periods of about 2 weeks.

Paper Details

Date Published: 14 October 2004
PDF: 8 pages
Proc. SPIE 5523, Current Developments in Lens Design and Optical Engineering V, (14 October 2004); doi: 10.1117/12.558897
Show Author Affiliations
Markus Schinhaerl, Fachhochschule Deggendorf (Germany)
Elmar G. Pitschke, Fachhochschule Deggendorf (Germany)
Univ. of the West of England (United Kingdom)
Rolf Rascher, Fachhochschule Deggendorf (Germany)
Peter Sperber, Fachhochschule Deggendorf (Germany)
Richard Stamp, Univ. of the West of England (United Kingdom)
Lyndon N. Smith, Univ. of the West of England (United Kingdom)
Gordon Smith, Univ. of the West of England (United Kingdom)


Published in SPIE Proceedings Vol. 5523:
Current Developments in Lens Design and Optical Engineering V
Pantazis Z. Mouroulis; Warren J. Smith; R. Barry Johnson, Editor(s)

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