Effect of shells number and machining on selected properties of 3D-printed PLA samples

IF 1.1 4区工程技术 Q4 POLYMER SCIENCE

Polimery Pub Date : 2024-04-17 DOI:10.14314/polimery.2024.3.6

Natalia Kowalska, Paweł Szczygieł, Michał Skrzyniarz, S. Błasiak

引用次数: 0

Abstract

Effect of shells number (1–5) on tensile properties of PLA samples printed using the FDM/FFF technique was investigated. The crack surface was also analyzed. The best properties were obtained for 4-shell sample. However, due to the large coefficient of variation (>> 10%) in the case of elongation, 3-shell sample was selected for testing the machining impact. Such a large coefficient of variation can be explained by the presence of voids between the layers. The greater the number of layers, the greater the structure defects. Machining increases surface smoothness while reducing tensile strength and practically unchanged elongation at break.

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贝壳数和机加工对 3D 打印聚乳酸样品某些性能的影响

研究了壳数（1-5）对使用 FDM/FFF 技术打印的聚乳酸样品拉伸性能的影响。同时还分析了裂纹表面。4壳样品获得了最佳性能。然而，由于伸长率的变异系数较大（>> 10%），因此选择了 3 层样品来测试加工影响。变异系数如此之大的原因是层与层之间存在空隙。层数越多，结构缺陷越大。机加工会增加表面光滑度，同时降低拉伸强度，断裂伸长率几乎不变。

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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来源期刊

Polimery Materials Science-Polymers and Plastics

CiteScore

2.90

自引率

6.20%

发文量

审稿时长

1 months

期刊介绍： The "Polimery" journal, of international circulation, is publishing peerreviewed scientific and technical research papers covering polymer science and technology in the field of polymers, rubbers, chemical fibres and paints. The range of topics covered are raw materials, polymer synthesis, processing and applications of polymers. Apart from scientific and technical research papers the monthly includes technical and commercial information such as reports from fairs and exhibitions as well as home, world and technical news. “Polimery "- an international journal covering the following topics: polymers, rubber, chemical fibres and paints. The Journal is addressed to scientists, managers and engineering staff of universities, Polish Academy of Sciences, R&D institutions, industry, specializing in polymer chemistry, physical chemistry, technology and processing. “Polimery” publishes original, reviewed research, scientific and technology papers in the field of polymer synthesis, analysis, technology and modification, processing, properties, applications and recycling.