关键词: 计算机辅助制造, 等参数线刀轨, 调和映射, 区域划分, 三角网格曲面

Abstract:

An algorithm for iso-parametric tool path generation for triangular mesh surface machining was proposed.Mesh surface was parametrized firstly by harmonic map method,
and four types of iso-parametric tool path planning were put forward,then x or r parametric lines were determined in parametric mesh by the corresponding relations of mesh
surface,projected mesh and parametric mesh.Based on these, iso-parametric tool paths
of free-interference and no redundant points were generated rapidly by region segment method.Experimental results indicate that the proposed algorithm is feasible and effective.

Key words: computer aided manufacturing(CAM);iso-parametric tool path, harmonic map, region segment, triangular mesh surface