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

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research 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.

查看原文本刊更多论文

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。

求助全文

约1分钟内获得全文求助全文

来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.