Edge effect modeling and experiments on active lap processing

	Edge effect modeling and experiments on active lap processing
	Liu, Haitao 1,2; Wu, Fan 2; Zeng, Zhige 2; Fan, Bin 2; Wan, Yongjian 2
刊名	Optics Express
	2014
卷号	22 期号:9 页码:10761-10774
中文摘要	Edge 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 F1090-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. © 2014 Optical Society of America.
英文摘要	Edge 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 F1090-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. © 2014 Optical Society of America.
学科主题	Mirrors
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000335905300105
内容类型	期刊论文
源URL	[http://ir.ioe.ac.cn/handle/181551/7035]
专题	光电技术研究所_先光中心
作者单位	1.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China 2.University of Chinese Academy of Sciences, Beijing 100039, China
推荐引用方式 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.