Spiral tool path generation algorithm for milling pocket with island

被引：0
|
作者：
Wang J. [1 ]
Wang X. [1 ]
Li S. [1 ]
Song Y. [1 ]
Li X. [1 ]
机构：
[1] CAD/CAM Institute, Central South University, Changsha
来源：
Li, Xiongbing (lixb213@mail.csu.edu.cn) | 1689年 / Chinese Society of Astronautics卷 / 37期
基金：
中国国家自然科学基金;
关键词：
B-spline; High-speed milling; Pocket with island; Setting-out; Tool path;
D O I：
10.7527/S1000-6893.2015.0122
中图分类号：
学科分类号：
摘要：
Conventional contour-parallel tool path patterns are inapplicable for milling pockets with islands at high speed because of sharp turning corners. To solve this problem, a new tool path generation algorithm is presented. Firstly, the setting-out points are set on the boundary of island and pocket, and a spiral fashion polyline is created by linearly interpolating the setting-out straights which are connected from the setting-out points of island and pocket. Then, the control points are inserted into the polyline under exponential regularization. Finally, the smooth tool path is generated via any order B-spline curve fitting. The tool path is applicable to pockets with bias island. The experimental results show that compared with the traditional contour-parallel tool path, high-order B-spline curve tool path can be sent directly to machine controller with NURBS interpolation function, the change range of cutting force will be decreased, meanwhile the machining accuracy of island and machining efficiency of pocket will be improved. © 2016, Press of Chinese Journal of Aeronautics. All right reserved.
引用
收藏
页码：1689 / 1695
页数：6
相关论文
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