Study on active lap tool influence function in grinding 1.8 m primary mirror

Liu Haitao; Zeng Zhige; Wu Fan; Fan Bin; Wan Yongjian

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Study on active lap tool influence function in grinding 1.8 m primary mirror

机译：主动研磨工具在1.8 m磨光主镜中的影响功能研究

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We present a theoretical modeling method to predict the ring tool influence function (TIF) based on the computer-controlled active lap process. The gap on the lap-grinding layer is considered, and its influence on the ring TIF is analyzed too. The relationship between the shape of the ring TIF and the lap-workpiece rotation speed ratio is discussed in this paper. The recipe for calculating dwell time for axisymmetric fabrication is discussed. The grinding process of a 1.8 m primary mirror is improved based on these results. The grinding process is accomplished after 30 circles of grinding, and the surface shape error is from PV 82 μm RMS 16.4 μm reduced to PV 13.5 μm RMS 2.5 μm.

机译：我们提出了一种理论建模方法来预测基于计算机控制的主动搭接过程的环形工具影响函数（TIF）。考虑搭接研磨层上的间隙，并分析了其对环形TIF的影响。本文讨论了环TIF的形状与搭接件转速比之间的关系。讨论了计算轴对称制造的停留时间的方法。基于这些结果，改进了1.8 m主镜的研磨过程。研磨过程完成30圈后完成，表面形状误差从PV 82μmRMS 16.4μm减小到PV 13.5μmRMS 2.5μm。

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《Applied optics》 |2013年第31期|共8页
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Liu Haitao; Zeng Zhige; Wu Fan; Fan Bin; Wan Yongjian;
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1. Study on active lap tool influence function in grinding 1.8 m primary mirror [J] . Liu Haitao, Zeng Zhige, Wu Fan, Applied optics . 2013,第31期

机译：主动研磨工具在1.8 m磨光主镜中的影响功能研究
2. Deformation verification and surface improvement of active stressed lap for 4 m-class primary mirror fabrication [J] . Zhao Hongshen, Li Xiaojin, Fan Bin, Applied optics . 2015,第10期

机译：4 m级主镜制造中活动应力搭接的变形验证和表面改进
3. Study on mirror surface grinding of die steel by using ultrasonically assisted diamond tools [J] . Keisuke Hara, Hiromi Isobe, Akira Kyusojin, International Journal of Abrasive Technology . 2008,第3a4期

机译：超声辅助金刚石工具对模具钢镜面磨削的研究
4. Improvement of active lap processing in grinding of 1.8m primary mirror [C] . Haitao Liu, Fan Wu, Zhige Zeng, International symposium on advanced optical manufacturing and testing technologies . 2014

机译：改进了1.8m主镜磨削中的主动搭接处理
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Study on active lap tool influence function in grinding 1.8 m primary mirror

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