Analysis of low-spatial frequency response in magnetorheological finishing process

Minwoo Jeon; Woo-Jong Yeo; Hwan-Jin Choi; Mincheol Kim; Seok-Kyeong Jeong; Min-Gab Bog; Wonkyun Lee

doi:10.1117/12.2690785

29 November 2023 Analysis of low-spatial frequency response in magnetorheological finishing process

Minwoo Jeon, Woo-Jong Yeo, Hwan-Jin Choi, Mincheol Kim, Seok-Kyeong Jeong, Min-Gab Bog, Wonkyun Lee

Proceedings Volume 12778, Optifab 2023; 1277814 (2023) https://doi.org/10.1117/12.2690785
Event: SPIE Optifab, 2023, Rochester, New York, United States

Conference Poster

Abstract

In this study, our aim is to improve the efficiency of the optical manufacturing process employing magnetorheological finishing (MRF) by quantitatively analyzing the MRF response characteristics that vary according to the type and size of low-spatial frequency. Dimension-variable patterns were devised based on the dimension of the tool influence function (TIF), consisting of two types: a width-variable pattern and a height-variable pattern. These dimension-variable patterns were utilized as input data for the MRF corrective polishing system. The resulting residual figure error of the patterns generated through the MRF corrective polishing system was calculated and expressed as output data. Furthermore, to quantify the MRF response characteristics for low-spatial frequency, the relative error is presented by comparing the input data and output data. The results indicate that the MRF polishing performance for low-spatial frequency is influenced by both the type and size of the frequency, and these trends can assist in devising sophisticated and efficient MRF strategies for manufacturing ultra-precision optical surfaces.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Minwoo Jeon, Woo-Jong Yeo, Hwan-Jin Choi, Mincheol Kim, Seok-Kyeong Jeong, Min-Gab Bog, and Wonkyun Lee "Analysis of low-spatial frequency response in magnetorheological finishing process", Proc. SPIE 12778, Optifab 2023, 1277814 (29 November 2023); https://doi.org/10.1117/12.2690785

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