Partition-based Print Sequence Planning and Adaptive Slicing for Scalar Field-based Multi-axis Additive Manufacturing
参考中译:标量场多轴加法制造中基于划分的印刷序列规划与自适应切片


          

刊名：Computer-Aided Design
作者：Lau T.Y.（Department of Mechanical and Aerospace Engineering The Hong Kong University of Science and Technology）
He D.（Department of Mechanical and Aerospace Engineering The Hong Kong University of Science and Technology）
Li Z.（Department of Mechanical and Aerospace Engineering The Hong Kong University of Science and Technology）
Tang K.（Department of Mechanical and Aerospace Engineering The Hong Kong University of Science and Technology）
Chen L.（College of Future Technologies The Hong Kong University of Science and Technology (Guangzhou)）
刊号：738C0067
ISSN：0010-4485
出版年：2023
年卷期：2023, vol.163
页码：103576
总页数：20
分类号：TP39
关键词：Adaptive slicing；Collision-free printing；Multi-axis additive manufacturing；Process planning；Support-free printing
参考中译：自适应切片;无碰撞打印;多轴增材制造;工艺规划;无支撑打印
语种：eng
文摘：While multi-axis additive manufacturing is found to be a good solution to the inherent limitations of conventional 2.5D additive manufacturing, it is a much more sophisticated process. Among different existing multi-axis process planning algorithms, we are interested in those based on a scalar field, in which print slices are the iso-surfaces of a scalar field embedded in the 3D model. In this paper, we propose a partitioned-based print sequence planning algorithm and an adaptive slicing algorithm, which together determine a complete multi-axis printing process for an arbitrary solid model. The first algorithm iteratively subdivides the model into a set of components such that a collision-free print sequence can be established among the components. The second algorithm then extracts print slices from each component such that all these slices satisfy the self-support condition. Since an arbitrary model may not satisfy both the self-support and collision-free requirements, we also define certain critical printability rules at the beginning to check whether a given input model with its associated scalar field is printable. The generated print slices and print sequence by the proposed two algorithms are guaranteed to be printable. Furthermore, a shorter total fabrication time and a better surface quality are achieved. Physical experiments of four test models are performed on a homebuilt multi-axis FDM printer, whose results verify the capabilities of the proposed algorithms.
参考中译：虽然多轴加法制造被发现是解决传统2.5D加法制造固有局限性的一个很好的解决方案，但它是一个复杂得多的工艺。在现有的各种多轴工艺规划算法中，我们感兴趣的是基于标量场的多轴工艺规划算法，其中打印切片是嵌入在三维模型中的标量场的等值面。本文提出了一种基于分割的打印序列规划算法和一种自适应切片算法，它们共同决定了任意实体模型的完整多轴打印过程。第一种算法迭代地将模型细分为一组组件，从而可以在组件之间建立无冲突的打印序列。然后，第二种算法从每个组件中提取打印切片，使得所有这些切片都满足自支撑条件。由于任意模型可能不同时满足自支持和无冲突的要求，我们还在开始时定义了某些关键的可打印性规则，以检查给定的输入模型及其关联的标量字段是否可打印。两种算法生成的打印切片和打印序列都是可打印的。此外，还获得了更短的总制造时间和更好的表面质量。在自制的多轴FDM机上进行了四个测试模型的物理实验，实验结果验证了所提算法的有效性。



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