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Contour-parallel tool-path planning of free surface using Voronoi diagram approach

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4 Author(s)
Zhiqiang Jiang ; Sch. of Mechatron. Eng., Zhengzhou Inst. of Aeronaut. Ind. Manage., Zhengzhou, China ; Xilan Feng ; Xianzhang Feng ; Yuanpeng Liu

In this paper, an important method for computing the tool-path, and constructing the offset curves of pocket boundary generates its tool-path planning is the Contour-parallel strategy. But it is very difficult for the judgment and disposal of loop. The main disfigurement of the algorithm in the contour-parallel calculation includes to judge and dispose the linking of offset curves, and to take out the curve intersection, redundant loop, and to check-up self-intersection loop, and to test the whole pocket collapse, and so on. A new algorithm to calculate geodesic quickly is presented in this paper. Based on this method, the area partition idea of Voronoi diagram is extended to the application of two-dimensional Riemann manifold. The area partition of the free surface with island is solved by an iteration method, and then the generation of contour-parallel tool-path is implemented. At last, the validity of this algorithm is verified by an example.

Published in:

Advanced Computer Theory and Engineering (ICACTE), 2010 3rd International Conference on  (Volume:1 )

Date of Conference:

20-22 Aug. 2010

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