Universal and efficient hybrid modeling and direct slicing method for additive manufacturing processes
作者机构：State Key Laboratory of Materials Processing and Die and Mould TechnologyHuazhong University of Science and TechnologyWuhan430074People’s Republic of China School of Machinery and AutomationWuhan University of Science and TechnologyWuhan430081People’s Republic of China
出 版 物：《Advances in Manufacturing》 (先进制造进展（英文版）)
年 卷 期：2024年第12卷第2期
页 面：300-316页
核心收录：
学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学]
基 金：supported by the Key Area R&D Program of Guangdong Province(Grant No.2020B090924002) the National Natural Science Foundation of China(Grant No.51790174)
主 题：Additive manufacturing(AM) Hybrid modeling Direct slicing Signed distance field
摘 要：Model design and slicing contour generation in additive manufacturing(AM)data processing face challenges in terms of efficiency and scalability when stereolithography files generated by complex functionally graded structures have millions of *** paper proposes a hybrid modeling and direct slicing method for AM to efficiently construct and handle complex three-dimensional(3D)*** 3D solids,including conformal multigradient structures,were uniformly described using a small amount of data via signed distance *** hybrid representations were quickly discretized into numerous disordered directed lines using an improved marching squares *** establishing a directional HashMap to construct the topological relationship between lines,a connecting algorithm with linear time complexity is proposed to generate slicing contours for *** method replaces the mesh reconstruction and Boolean operation stages and can efficiently construct complex conformal gradient models of arbitrary topologies through hybrid ***,the time and memory consumption of direct slicing are much lower than those of previous methods when handling hybrid models with hundreds of millions of faces after mesh reconstruction.
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