Comparison of the strength of popular thermoplastic materials used in 3D printing – PLA, ABS and PET-G

Abstract

This paper presents the results of a comparative analysis of three prevalent materials used in 3D printing. PLA (Polylactic Acid), ABS (Acrylonitrile Butadiene Styrene), and PET-G (Polyethylene Terephthalate Glycol). The study includes strength testing using a tensile testing machine. Beginning with the selection of the input material used in the 3D printing process, the research aimed to provide insights into the strength properties of these materials. Autodesk Fusion 360 software was used for the precise design of the 3D model, ensuring suitability for subsequent tensile testing. The physical samples were then printed using 3D printing technology. The samples were subjected to a strength examination using a tensile testing machine. The data collection phase recorded and compiled the results of each strength test, forming the foundation for a comprehensive analysis. Using statistical methods and comparative analyzes, the data were thoroughly examined, allowing the derivation of conclusive observations and insights into the comparative strengths of PLA, ABS, and PET-G. The findings not only contribute to a deeper understanding of material performance but also provide a guide for material selection in 3D printing applications, guiding future research endeavors and industry applications in the everevolving landscape of additive manufacturing.