An Efficient Slicing Algorithm for Additive Manufacturing in Arbitrary Directions Based on Adjacent Triangles

作     者：Liu, Han Xing, Fei 

作者机构：Shenyang Univ Technol Sch Mech Engn Shenyang 110870 Peoples R China Nanjing Zhongke Raycham Laser Technol Co Ltd Nanjing 210038 Peoples R China 

出 版 物：《IEEE ACCESS》 (IEEE Access)

年 卷 期：2024年第12卷

页      面：57837-57846页

核心收录：

基　　金：National Key Research and Development Program of China 

主　　题：Additive manufacturing slicing algorithm adjacency topology calculation optimization 

摘      要：Additive manufacturing is capable of forming part solids from a digital model of the workpiece, which often needs to be sliced due to the nature of the process of stacking materials layer by layer. Previous algorithms require more time to order the intersection points during slicing and only consider a fixed axis vector as the slicing direction. With the increasing complexity of the workpiece model, it is necessary to improve the efficiency of the slicing algorithm, and the given slicing direction should be flexible and convenient. Therefore, this paper proposes an efficient algorithm for slicing in any direction using the shared edges of adjacent triangles. Firstly, the model can be efficiently sliced in any direction by custom vectors, which is convenient for process validation;secondly, the shared edges of neighboring triangular facets intersecting the plane need to be calculated only once to reduce redundant calculations;finally, the ordered intersections of the constructed inner and outer contours are directly outputted without any additional sorting to reduce the running time. The experimental results show that compared with other algorithms, the proposed algorithm can improve the execution efficiency and eliminate the constraint that the slicing direction is fixed on the Z-axis, which is of application value and reference significance for additive.