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Machining Non Rotationally Symmetric Precision Optic Mirror Surface with Numerical Control Single Point Diamond Turning

Ren\ Yaozheng (Science and Technology Office, Beijing Insitute of Technology, Beijing\ 100081) Liao Yueming\ Zhu Pailong\ Sun Wei (Department of Mechanical Engineering, Dalian University of Technology, Dalian\ 116023)  
Aim\ To machine non rotationally symetric optic mirror surface Methods The servo control mechanism was made of piezoelectrical pottery And the cutting tool was made of diamond The single point diamond cutting experiments were finished on a self made computer control machining system The workpiece was made of copper The finished surface was a curved surface used in optic image system so as to compensate aberrations in it The surface was called non rotationally symetric opticmirror surface, and it′s equation was called Zernike equation Results Zernike optic mirror surface was finished on the end of a workpiece, and it′s precision was about 71 6 percent Conclusion The method by which non rotationally symetric optic mirror surface was made is practicable The self made computer control machining system is flexiable and the results are reliable
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