A Study on the Evaluation of the Compression Behavior of PLA Lattice Structures Manufactured by FDM

IF 1.5 0 ENGINEERING, MULTIDISCIPLINARY

Engineering, Technology & Applied Science Research Pub Date : 2023-10-13 DOI:10.48084/etasr.6262

Dragos Gabriel Zisopol, Mihail Minescu, Dragos Valentin Iacob

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引用次数: 12

Abstract

The paper brings forward the results of a study on the compression test of 28 lattice structures made of PLA by FDM, with the height of the deposited layer at a pass of Hs = 0.20 mm and 50% filling percentage Pu. The 28 samples were made on Anycubic 4 Max Pro 2.0 the 3D printer, considering 7 filling patterns: Grid, Tri-hexagon, Octet, Triangles, Cubic subdivision, Gyroid, and Cross 3D for each type of lattice structure. The dimensions of the specimens, before and after the compression test, were determined using the DeMeet 3D coordinate measuring machine. In this context, a minimum printing accuracy value of 98.98% and a maximum deformation value of 57.70% were recorded for the lattice structure corresponding to the Triangles fill pattern. For the same Triangles type lattice structure, the highest average maximum compressive force of 87.32 kN was obtained. The maximization of the ratio between the use value and the production cost, one of the fundamental technical-economic principles of value analysis, was obtained for the lattice structure corresponding to the Cubic subdivision filling model.

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FDM法制备PLA晶格结构的压缩性能评价研究

本文提出了用FDM对28种PLA晶格结构进行压缩试验的研究结果，沉积层高度为Hs = 0.20 mm，填充率为50% Pu。28个样品在Anycubic 4 Max Pro 2.0 3D打印机上制作，考虑了7种填充模式:网格，三六边形，八边形，三角形，Cubic subdivision, Gyroid和Cross 3D对于每种类型的晶格结构。使用DeMeet三维坐标测量机测量压缩试验前后试件的尺寸。在这种情况下，与三角形填充图案相对应的晶格结构的最小打印精度值为98.98%，最大变形值为57.70%。对于相同的三角形晶格结构，获得的平均最大抗压力最高为87.32 kN。得到了与Cubic细分填充模型相对应的点阵结构的使用价值与生产成本之比的最大化，这是价值分析的基本技术经济原则之一。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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