Chinese Optics Letters, 2007, 5 (5): 298, Published Online: Jun. 27, 2007  

Effect of the geometry of workpiece on polishing velocity in free annular polishing Download: 590次

Author Affiliations
Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
Abstract
Base on Coulomb friction model, the workpieces with different geometry rotating in free annular polishing are simulated. From simulation, the following conclusions are drawn. The angular velocity of workpiece is higher than that of polishing pad if the ring rotates uncontrolled in free annular polishing. The circular workpiece can synchronize with polishing pad through controlling the rotation of ring, which depends on the radii of ring and workpiece, the friction coefficients of polishing pad-workpiece and ring-workpiece, and the angular velocity of polishing pad. The workpiece with sharp corner cannot contact with the ring contiguously, which causes the contact state changing and the angular velocity of workpiece fluctuating ceaselessly, and this type of workpiece should be controlled with clamp to rotate synchronistically with the polishing pad.
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Quantang Fan, Jianqiang Zhu, Bao'an Zhang. Effect of the geometry of workpiece on polishing velocity in free annular polishing[J]. Chinese Optics Letters, 2007, 5(5): 298.

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