Rapid fabrication of a lightweight 2 m reaction-bonded SiC aspherical mirror
Magnetorheological finishing (MRF) fabrication can effectively facilitate a rapid fabrication of an aspherical 2 m reaction-bonded silicon carbide mirror. The dwell-time algorithm and tool path supported tool-mark mitigation and virtual-axis employment are analyzed. A rapid-fabrication strategy alte...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2018-09-01
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| Series: | Results in Physics |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379718315183 |
| _version_ | 1811277059263037440 |
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| author | Longxiang Li Zhenyu Liu Donglin Xue Weijie Deng Ruigang Li Yang Bai Xuefeng Zeng Xuejun Zhang |
| author_facet | Longxiang Li Zhenyu Liu Donglin Xue Weijie Deng Ruigang Li Yang Bai Xuefeng Zeng Xuejun Zhang |
| author_sort | Longxiang Li |
| collection | DOAJ |
| description | Magnetorheological finishing (MRF) fabrication can effectively facilitate a rapid fabrication of an aspherical 2 m reaction-bonded silicon carbide mirror. The dwell-time algorithm and tool path supported tool-mark mitigation and virtual-axis employment are analyzed. A rapid-fabrication strategy alternates MRF and a large polishing lap to converge surface error profile before MRF alone is used to high-precise finishing. In the alternate-use process, large polishing lap’s dwell time map for low-order space frequency is calculated before MRF’s for high-order one, but executed later in reality. The fabricated mirror with a silicon modification layer showed accuracy convergence from 0.098 λ rms to 0.019 λ rms at 84.6 h, demonstrating the strategy’s validity for large optical-surface processing. Keywords: Computer controlled polishing, Silicon carbide mirror, Surface error, Magnetorheological finishing, Large polishing lap |
| first_indexed | 2024-04-13T00:08:56Z |
| format | Article |
| id | doaj.art-35f90de6a61949c492a0c685387b0836 |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-04-13T00:08:56Z |
| publishDate | 2018-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-35f90de6a61949c492a0c685387b08362022-12-22T03:11:08ZengElsevierResults in Physics2211-37972018-09-0110903912Rapid fabrication of a lightweight 2 m reaction-bonded SiC aspherical mirrorLongxiang Li0Zhenyu Liu1Donglin Xue2Weijie Deng3Ruigang Li4Yang Bai5Xuefeng Zeng6Xuejun Zhang7Key Laboratory of Optical System Advanced Manufacturing Technology, Chinese Academy of Sciences, Changchun 130033, China; Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, China; Corresponding authors at: Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, China.Key Laboratory of Optical System Advanced Manufacturing Technology, Chinese Academy of Sciences, Changchun 130033, China; Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, ChinaKey Laboratory of Optical System Advanced Manufacturing Technology, Chinese Academy of Sciences, Changchun 130033, China; Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, China; Corresponding authors at: Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, China.Key Laboratory of Optical System Advanced Manufacturing Technology, Chinese Academy of Sciences, Changchun 130033, China; Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, ChinaKey Laboratory of Optical System Advanced Manufacturing Technology, Chinese Academy of Sciences, Changchun 130033, China; Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, ChinaKey Laboratory of Optical System Advanced Manufacturing Technology, Chinese Academy of Sciences, Changchun 130033, China; Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, ChinaKey Laboratory of Optical System Advanced Manufacturing Technology, Chinese Academy of Sciences, Changchun 130033, China; Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, ChinaKey Laboratory of Optical System Advanced Manufacturing Technology, Chinese Academy of Sciences, Changchun 130033, China; Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, ChinaMagnetorheological finishing (MRF) fabrication can effectively facilitate a rapid fabrication of an aspherical 2 m reaction-bonded silicon carbide mirror. The dwell-time algorithm and tool path supported tool-mark mitigation and virtual-axis employment are analyzed. A rapid-fabrication strategy alternates MRF and a large polishing lap to converge surface error profile before MRF alone is used to high-precise finishing. In the alternate-use process, large polishing lap’s dwell time map for low-order space frequency is calculated before MRF’s for high-order one, but executed later in reality. The fabricated mirror with a silicon modification layer showed accuracy convergence from 0.098 λ rms to 0.019 λ rms at 84.6 h, demonstrating the strategy’s validity for large optical-surface processing. Keywords: Computer controlled polishing, Silicon carbide mirror, Surface error, Magnetorheological finishing, Large polishing laphttp://www.sciencedirect.com/science/article/pii/S2211379718315183 |
| spellingShingle | Longxiang Li Zhenyu Liu Donglin Xue Weijie Deng Ruigang Li Yang Bai Xuefeng Zeng Xuejun Zhang Rapid fabrication of a lightweight 2 m reaction-bonded SiC aspherical mirror Results in Physics |
| title | Rapid fabrication of a lightweight 2 m reaction-bonded SiC aspherical mirror |
| title_full | Rapid fabrication of a lightweight 2 m reaction-bonded SiC aspherical mirror |
| title_fullStr | Rapid fabrication of a lightweight 2 m reaction-bonded SiC aspherical mirror |
| title_full_unstemmed | Rapid fabrication of a lightweight 2 m reaction-bonded SiC aspherical mirror |
| title_short | Rapid fabrication of a lightweight 2 m reaction-bonded SiC aspherical mirror |
| title_sort | rapid fabrication of a lightweight 2 m reaction bonded sic aspherical mirror |
| url | http://www.sciencedirect.com/science/article/pii/S2211379718315183 |
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