Analysis of the Effect of Fused Deposition Modeling Process Parameters on the Tensile Strength of PLA Material

Desmarita Leni; Yazmendra Rosa; Eka Sunitra; Riza Muharni; Yuanda Perdana Kusuma

Authors

Desmarita Leni Department of Mechanical Engineering, Universitas Muhammadiyah Sumatera Barat, Indonesia Author https://orcid.org/0000-0003-1364-0050
Yazmendra Rosa Department of Mechanical Engineering, Politeknik Negeri Padang, Indonesia Author https://orcid.org/0000-0001-7579-582X
Eka Sunitra Department of Mechanical Engineering, Politeknik Negeri Padang, Indonesia Author
Riza Muharni Department of Mechanical Engineering, Universitas Muhammadiyah Sumatera Barat, Indonesia Author https://orcid.org/0000-0002-6620-276X
Yuanda Perdana Kusuma Asosiasi Diseminasi Rekayasa Dan Inovasi Teknologi, Padang, Indonesia Author

Keywords:

Fused Deposition Modeling, Ultimate Tensile Strength , Process Parameters, Layer Height, Build Angle.

Abstract

Variations in process parameters in Fused Deposition Modeling (FDM) often lead to differences in the tensile strength of Polylactic Acid (PLA) materials. However, results reported in previous studies remain inconsistent and difficult to compare directly. This condition makes it challenging to identify which parameters have a truly significant effect on tensile strength. This study aims to analyze the influence of FDM process parameters on the tensile strength of PLA materials using secondary data consisting of 74 observations, which were organized into a structured dataset and analyzed using descriptive statistics and correlation analysis. The results show that print orientation has the strongest negative correlation, with a value of −0.51, indicating that an increase in print orientation is associated with a decrease in tensile strength. Layer height also shows a negative correlation of −0.38, where smaller layer thickness is associated with higher tensile strength. Nozzle temperature exhibits a positive correlation of 0.35, while print speed does not show a significant effect on ultimate tensile strength (UTS). This approach enables a faster and more systematic identification of the most influential parameters compared to reviewing individual studies separately. Therefore, this study provides a clearer understanding of parameter prioritization in the FDM process, which can support more efficient decision-making to improve the tensile strength of PLA materials.

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