分层实体制造激光头切割路径的建模与优化

刘会霞; 王霄; 蔡兰

中国激光, 2004, 31 (9): 1137, 网络出版: 2006-06-12

分层实体制造激光头切割路径的建模与优化

Modeling and Optimizing Laser Torch Path in Laminated Object Manufacturing Technology

论文大纲

刘会霞 ^*王霄蔡兰

作者单位

江苏大学机械工程学院, 江苏镇江 212013

摘要

分层实体制造(LOM)技术中分层制造时间是由该层的切割速度与切割路径确定的,当切割工艺参数(如

Abstract

Layer manufacturing time in laminated object manufacturing (LOM) technology is determined by the cutting speed and cutting path of each layer. When the parameters of cutting process such as cutting power and cutting speed are defined, the manufacturing time of each layer is determined by the cutting (scanning) path. So it is most important to optimize the cutting path in order to improve the manufacturing efficiency. In LOM technology, laser cutting path optimization is in fact vacancy course path optimization. The mathematical model of vacancy course path optimization is set up in this paper. Because of the complexity of solving the model, the two algorithms of grading planning are presented: start points in cutting contour are solved by using an improved nearest neighbor algorithm; when start points are determined, the problem of the path optimization turns into the traveling salesman problem (TSP), which is solved by using an high-efficiency intellectual biological algorithm-the ant colony system algorithm. The results of algorithm show that the algorithm remarkably shortens vacancy course in LOM and the manufacturing efficiency of rapid prototyping is improved.

参考文献

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刘会霞, 王霄, 蔡兰. 分层实体制造激光头切割路径的建模与优化[J]. 中国激光, 2004, 31(9): 1137. 刘会霞, 王霄, 蔡兰. Modeling and Optimizing Laser Torch Path in Laminated Object Manufacturing Technology[J]. Chinese Journal of Lasers, 2004, 31(9): 1137.

分层实体制造激光头切割路径的建模与优化

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