AN OPTIMIZED ISOSCALLOP HEIGHT CUTTING PATHS PLANNING METHOD BASED ON CROSS-ENTROPY OPTIMIZATION ALGORITHM

摘要：

Isoscallop height tool paths planning method is a highefficient way to generate tool paths. In general, one of the edges of the surface is chosen as the initial path when using this method. In fact, the different initial paths lead to different efficiency when machining sculpture surface. Therefore selecting initial path is a significant work for isoscallop height method to improve machining efficiency. In order to find the optimal initial path, this paper presents an approach for selecting initial cutting path using cross-entropy optimization algorithm. A mapping from the initial path to the total path length is formulated and set as the objective function. Then the problem of the cutting paths optimization is translated into a constrained optimization problem. The cross-entropy method is introduced to solve constrained optimization problem. Thus the optimal paths based on isoscallop height method can be obtained. The example shows that the approach can reduce the total path length and improve the machining productivity and efficiency.

关键词： Isoscallop height method Cutting paths planning Cross-entropy optimization algorithm Initial path constrained optimization

作者: PAN Xin CAI Yujun LI Zhen SUN Lijie

作者单位: Tianjin Key Laboratory of High Speed Cutting & Precision Machining(TUTE), Tianjin China

会议类型: 国际会议

会议名称: International Technology and Innovation Conference 2009(2009技术与创新国际学术会议)

会议地点: 西安

会议语种:英文

页码: 1-5

在线出版日期: 2009-10-12（万方平台首次上网日期，不代表论文的发表时间）