Abstract
Fused Deposition Modeling (FDM) can be used to manufacture any complex geometry and internal structures, and it has been widely applied in many industries, such as the biomedical, manufacturing, aerospace, automobile, industrial, and building industries. The purpose of this research is to characterize the polylactic acid (PLA) and polyethylene terephthalate glycol (PETG) materials of FDM under four loading conditions (tension, compression, bending, and thermal deformation), in order to obtain data regarding different printing temperatures and speeds. The results indicated that PLA and PETG materials exhibit an obvious tensile and compression asymmetry. It was observed that the mechanical properties (tension, compression, and bending) of PLA and PETG are increased at higher printing temperatures, and that the effect of speed on PLA and PETG shows different results. In addition, the mechanical properties of PLA are greater than those of PETG, but the thermal deformation is the opposite. The above results will be a great help for researchers who are working with polymers and FDM technology to achieve sustainability.
Highlights
Due to global competition, the mass customization of products, and the long molding cycle of traditional manufacturing methods, the manufacturing industry is under more pressure to seek the advantages of new processes that can cope with small batches and rapid manufacturing
Santana et al [16] explored the differences among the mechanical properties of polylactic acid (PLA) and polyethylene terephthalate glycol (PETG), based on Fused Deposition Modeling (FDM) and injection molding technology, and the results showed that PLA has higher stiffness and tension than PETG; PETG has better thermal degradation resistance and thermal stability than PLA, and, after the FDM process, the tensile strength of PLA and PETG increases by 24% and 18%, respectively
After analyzing them using the Taguchi method and Analysis of Variance (ANOVA) methods, the results showed that the acceleration of the process speed and the flow of the material had the strongest influence on the quality parameters of PETG
Summary
The mass customization of products, and the long molding cycle of traditional manufacturing methods, the manufacturing industry is under more pressure to seek the advantages of new processes that can cope with small batches and rapid manufacturing. 3D printing technology in the medical, manufacturing, and engineering fields has developed rapidly [1,2]. This technology is known as Additive Manufacturing (AM) technology, which is based on incremental layer-by-layer manufacturing [3]. It is directly fabricated from 3D digital models but it does not require any fixtures or specific tools. It can manufacture complex structures and print multi-materials quickly, compared to any other method. AM technology can be divided into three basic groups, namely those that are solid-based, powder-based, and liquid-based
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