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使用数值模拟将重量因子作为激光粉末床熔融（L-PBF）打印过程中最佳零件取向的参数

Weight Factor as a Parameter for Optimal Part Orientation in the L-PBF Printing Process Using Numerical Simulation.

作者信息

Kaščák Ľuboš, Varga Ján, Bidulská Jana, Bidulský Róbert, Manfredi Diego

机构信息

Department of Technology, Materials and Computer Supported Production, Faculty of Mechanical Engineering, Technical University of Košice, Letná 9, 04002 Košice, Slovakia.

Department of Plastic Deformation and Simulation Processes, Institute of Materials and Quality Engineering, Faculty of Materials, Metallurgy and Recycling, Technical University of Kosice, Vysokoskolska 4, 04200 Košice, Slovakia.

出版信息

Materials (Basel). 2024 Jul 22;17(14):3604. doi: 10.3390/ma17143604.

DOI:10.3390/ma17143604
PMID:39063896
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11278603/
Abstract

The L-PBF process belongs to the most modern methods of manufacturing complex-shaped parts. It is used especially in the automotive, aviation industries, and in the consumer products industry as well. Numerical simulation in the powder sintering process is a means of optimizing time efficiency, accuracy and predicting future errors. It is one of the means to optimize the L-PBF process, which makes it possible to investigate the influence of individual parameters on additive manufacturing. This research makes it possible to predict the correct orientation of a part based on selected criteria, which are assigned a weighting factor in the form of parameters with which the simulation software Simufact Additive can work. Based on these, three possible orientations of the part were analysed with respect to the area of the supporting material, the volume of the supporting material, the number of voxels, and the building risk. Finally, the results of a simulation and the results of the tensile test were compared. From the results of the static tensile test, as well as from the results of the numerical simulation, it was found that better characteristics were achieved for the orientation of part no. 1 compared to orientation of part No. 3.

摘要

激光粉末床熔融（L-PBF）工艺属于制造复杂形状零件的最现代方法之一。它尤其应用于汽车、航空工业以及消费品行业。粉末烧结过程中的数值模拟是优化时间效率、精度以及预测未来误差的一种手段。它是优化L-PBF工艺的手段之一，这使得研究各个参数对增材制造的影响成为可能。该研究能够基于选定的标准预测零件的正确取向，这些标准以参数的形式被赋予一个加权因子，仿真软件Simufact Additive可以使用这些参数。基于这些，针对支撑材料的面积、支撑材料的体积、体素数量和构建风险，分析了零件的三种可能取向。最后，比较了模拟结果和拉伸试验结果。从静态拉伸试验结果以及数值模拟结果发现，与零件3的取向相比，零件1的取向具有更好的性能。

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