Effect of wall line count on the mechanical properties of FDM 3Dprinted PLA parts

Paijan, Lailatul Harina and Hamzah, Aslam Hadi and Abu Bakar, Mohd Hadzley and Mamat, Mohd Fauzi and Maidin, Nurul Ain and Musa, Shahrul Irwan (2024) Effect of wall line count on the mechanical properties of FDM 3Dprinted PLA parts. Malaysian Journal of Microscopy, 20 (2). pp. 34-44. ISSN 1823-7010

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Abstract

In 3D printing applications, understanding various printing parameters is crucial for achieving the optimal mechanical performance for 3D-printed parts. Therefore, this research aims to investigate the effect of varying wall line counts on the mechanical properties of poly(lactic acid) (PLA) through the fused deposition modelling (FDM) method. 3D-printed samples with varying wall line counts of 6, 18, and 30 layers were prepared. In this work, the mechanical properties and morphological examination were carried out. The experimental results show that the 30 layers of wall line count exhibit the highest tensile strength of 32.91 MPa and able to receive a maximum load of 1283.53 N. It also demonstrates a higher density of 1.19 g/cm³ compared to that of 6 layers and 18 layers of wall line count. However, it revealed that the highest energy absorbed was 18 layers of wall line count with a 0.26 J, contrasting with the other samples. Scanning electron microscope (SEM) morphologies on the fracture surface after tensile test observed a decrease in voids with the 30 layers of wall line count, which is comparable to the 6 and 18 layers of wall line count. In conclusion, the effect of varying wall line count can improve the mechanical properties of 3D-printed parts.

Item Type:	Article
Uncontrolled Keywords:	3D printing, FDM method, Wall line count, Poly(lactic acid), Tensile strength
Divisions:	Faculty Of Industrial And Manufacturing Technology And Engineering
Depositing User:	Norfaradilla Idayu Ab. Ghafar
Date Deposited:	05 Feb 2025 16:17
Last Modified:	05 Feb 2025 16:17
URI:	http://eprints.utem.edu.my/id/eprint/28396
Statistic Details:	View Download Statistic

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