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Edge effect modeling and experiments on active lap processing
Liu, Haitao1,2; Wu, Fan2; Zeng, Zhige2; Fan, Bin2; Wan, Yongjian2
Source PublicationOPTICS EXPRESS
Indexed BySCI
WOS IDWOS:000335905300105
AbstractEdge effect is regarded as one of the most difficult technical issues for fabricating large primary mirrors, especially for large polishing tools. Computer controlled active lap (CCAL) uses a large size pad (e.g., 1/3 to 1/5 workpiece diameters) to grind and polish the primary mirror. Edge effect also exists in the CCAL process in our previous fabrication. In this paper the material removal rules when edge effects happen (i.e. edge tool influence functions (TIFs)) are obtained through experiments, which are carried out on a Phi 1090-mm circular flat mirror with a 375-mm-diameter lap. Two methods are proposed to model the edge TIFs for CCAL. One is adopting the pressure distribution which is calculated based on the finite element analysis method. The other is building up a parametric equivalent pressure model to fit the removed material curve directly. Experimental results show that these two methods both effectively model the edge TIF of CCAL. (C) 2014 Optical Society of America
WOS Research AreaOptics
WOS SubjectOptics
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Liu, Haitao,Wu, Fan,Zeng, Zhige,et al. Edge effect modeling and experiments on active lap processing[J]. OPTICS EXPRESS,2014,22(9):10761-10774.
APA Liu, Haitao,Wu, Fan,Zeng, Zhige,Fan, Bin,&Wan, Yongjian.(2014).Edge effect modeling and experiments on active lap processing.OPTICS EXPRESS,22(9),10761-10774.
MLA Liu, Haitao,et al."Edge effect modeling and experiments on active lap processing".OPTICS EXPRESS 22.9(2014):10761-10774.
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