考虑网格拓扑关系的增材制造切片算法研究

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中图分类号：TH164 文献标志码：A

Research on slicing algorithms for additive manufacturing considering mesh topology

XIAO Aiwu’，ZHANG Juntao1，LI Yingnan²，ZHAO Wanting

（1. State Nuclear Power Plant Service Company， Shanghai 2OO233，China; 2. State Nuclear Power Investment Corporation，Yantai 264O13，Shandong，China）

Abstract： Traditional slicing algorithms for additive manufacturing is only based on the geometry information of model mesh and its effciency is slow. To improve the slicing algorithm， firstly the vast amounts of triangles are sorted according to their z coordinate to avoid tedious traversal repeatedly. Secondly the geometrical topology of triangles and vertexes are built so that the neighbor triangles possibly intersected with slicing plane can be searched conveniently and quickly. The correct directed line segment is determined due to vertex sequence of triangle and is then connected to each other through starting point vs ending point to form the closed contour polygon of slice. As a result，the present slicing algorithm is more efficient and stable. This algorithm is of great significance in the nuclear power field，as it can enhance the efficiency and quality of nuclear equipment operation and maintenance. Meanwhile， the non-destructive detection digital platform can provide accurate data support for the slicing process，ensuring the reliability of manufacturing process.

Key words： additive manufacturing; topology; slicing algorithm; closed contour loop; nondestructive detection；digital platform

0 引言

增材制造技术采用分层叠加制造产品，不受复杂结构限制，具有材料种类丰富、精度高、质量好等优点，适用于小规模、定制化生产，广泛应用于航空航天、汽车、医疗等领域。（剩余7993字）