Laser Processing Path Generation Method Based on Stereolithography Surface Model

This paper introduces a new laser processing method for triangular mesh surfaces. In order to solve the efficiency problems of the hierarchical bounding box method in curved surface layering intersection, this method proposes to use the direction of intersecting lines and the adjacency relation of surfaces to achieve faster layered detection of triangle-to-triangle intersection. In order to solve the deformation problem of parameter mapping in tool path generation, this method proposes a circular unfolding method to get a plane, and the contour parallel tool path planning method is used to fill the unfolded plane. At last, the curved surface processing path is generated by inversely mapping. The effectiveness of laser processing method is verified by a faster intersection comparison experiment and two triangular mesh surface cases studies.