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Proceedings Paper

Planning and Implementation of tool path computer controlled polishing optical surfaces
Author(s): X. B. Yu; F. H. Zhang; Y. Zhang; P. Q. Fu
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Paper Abstract

The application of 'small tool' based on computer controlled is a breakthrough in modern optical machining. Dwell time distribution calculated by the iterative convolution algorithm is normally expressed by the points of intersection on the grid; however, the polishing tool path is composed of multi-segment polylines in fact. Therefore, it is required to calculate the time required when the polishing tool moved along the polylines on the workpiece surface before polishing. The algorithm to calculate the dwell time on each polyline of the tool path has been developed, thereby the deterministic material removal on workpiece surface by polishing tool can be achieved. A tool path algorithm based on fractal geometry has been developed, and the points of intersection on the grid are used as the endpoints of polylines directly. Each polyline dwell time is presented by the mean value of dwell time of two endpoints. A group of surface error data is simulated with actual parameters by spiral path and fractal path with the same number nodes. The contrasted results show that most of error results of the fractal path are better than spiral path. The intersection algorithm has been developed to optimize fractal path, thereby the fractal path can be used in polishing workpiece surface with various border efficiently.

Paper Details

Date Published: 6 October 2010
PDF: 6 pages
Proc. SPIE 7655, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 765510 (6 October 2010); doi: 10.1117/12.867919
Show Author Affiliations
X. B. Yu, Harbin Institute of Technology (China)
F. H. Zhang, Harbin Institute of Technology (China)
Y. Zhang, Harbin Institute of Technology (China)
P. Q. Fu, Harbin Institute of Technology (China)


Published in SPIE Proceedings Vol. 7655:
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies
Li Yang; Yoshiharu Namba; David D. Walker; Shengyi Li, Editor(s)

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