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Large flat optics method of processing technology

Author: MaZhiCheng
Tutor: XieJingJiang
School: Graduate Schoo,Chinese Academy of Sciences
Course: Optical Engineering
Keywords: Large flat processing Ring with polished Preston assumption Theoretical model material removal
CLC: TG580.6
Type: Master's thesis
Year: 2010
Downloads: 81
Quote: 0
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Abstract


Ring with polished planar optical element processing as an important technology has been widely applied . In our laboratory, a high-precision , high aspect ratio , large diameter optical flat rectangle on the use of the processing of this polishing techniques . In order to deepen the element surface grinding material understanding of the law and to improve the ability to adjust the polishing process , the thesis of the polishing technology for the corresponding theoretical analysis and experimental processes . In this paper , in order to analyze planar optical surface grinding material law to Preston hypothesis and the relative motion of the workpiece and the disc was established based on analyzes of surface removal reflects the physical model law . In this model , based on the difference between the workpiece and the disc pressure and speed of these two factors were analyzed. These analyzes can be obtained between the workpiece and the disc pressure distribution, and the speed ratio , eccentricity of these parameters for the polishing process. In addition, the ring toss in another part of the calibration plate in the role played by polishing were analyzed , and thus get corrected by moving the plate method to achieve the improvement of disc -shaped surface thereby increasing the workpiece surface accuracy . Theoretical analysis carried out on the ring toss relevant process technology experiments . Through the control and adjust the parameters to achieve the machining plane surface shape processing to verify the correctness of the theoretical analysis . While the rectangle appears in the processing of the workpiece surface shape error analysis on how to reduce their impact on the accuracy of the opposite form put forward the corresponding approach. Through the above theoretical analysis and experimental craft , the use of a ring with a polished finish ring width dimension than planar optical element processing . Research on the technology of the future use of large-diameter ring plane polishing optical element has a guiding role .

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CLC: > Industrial Technology > Metallurgy and Metal Craft > Metal cutting and machine tools > Grinding and grinding machine > General issues > Grinding process
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