Relationship between influence function accuracy and polishing quality in magnetorheological finishing

Markus Schinhaerl; Florian Schneider; Rolf Rascher; Christian Vogt; Peter Sperber

doi:10.1117/12.865508

6 October 2010 Relationship between influence function accuracy and polishing quality in magnetorheological finishing

Markus Schinhaerl, Florian Schneider, Rolf Rascher, Christian Vogt, Peter Sperber

Proceedings Volume 7655, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 76550Y (2010) https://doi.org/10.1117/12.865508
Event: 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2010, Dalian, China

Abstract

Magnetorheological finishing is a typical commercial application of a computer-controlled polishing process in the manufacturing of precision optical surfaces. Precise knowledge of the material removal characteristic of the polishing tool (influence function) is essential for controlling the material removal on the workpiece surface by the dwell time method. Results from the testing series with magnetorheological finishing have shown that a deviation of only 5% between the actual material removal characteristic of the polishing tool and that represented by the influence function caused a considerable reduction in the polishing quality. The paper discusses reasons for inaccuracies in the influence function and the effects on the polishing quality. The generic results of this research serve for the development of improved polishing strategies, and may be used in alternative applications of computer-controlled polishing processes that quantify the material removal characteristic by influence functions.

Citation Download Citation

Markus Schinhaerl, Florian Schneider, Rolf Rascher, Christian Vogt, and Peter Sperber "Relationship between influence function accuracy and polishing quality in magnetorheological finishing", Proc. SPIE 7655, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 76550Y (6 October 2010); https://doi.org/10.1117/12.865508

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