Impact of Temperature and Material Variation on Mechanical Properties of Parts Fabricated with Fused Deposition Modelling (FDM) Additive Manufacturing

Abstract

Additive Manufacturing (AM) can be deployed for space exploration purposes, such as fabricating different components of robots’ bodies. The produced AM parts should have desirable thermal and mechanical properties to withstand the extreme environmental conditions, including the severe temperature variations on moon or other planets which cause changes in parts’ strengths and may fail their operation. Therefore, the correlation between operational temperature and mechanical properties of AM fabricated parts should be evaluated. In this study, three different types of polymers, including polylactic acid (PLA), polyethylene terephthalate glycol (PETG), and acrylonitrile butadiene styrene (ABS), were used in Fused Deposition Modeling (FDM) process to fabricate several parts. The mechanical properties of produced parts were then investigated at various temperatures to generate knowledge on the correlation between temperature and type of material. When varying the operational temperature during tensile tests, the material’s glass transition temperature was found influential in determining the type of material failure. Among the materials used, ABS showed the best mechanical properties at all temperatures due to its highest glass transmission temperatures. The results of statistical analysis indicated the temperature as the significant factor on tensile strength while the change in material did not show a significant effect.

Verification of stress transformation in anisotropic material additively manufactured by fused deposition modeling (FDM)

“…The ease of manufacture of components produced by Fused Deposition Modeling (FDM) out of Polymers makes them useful for rapid prototyping and scale testing of mechanisms and structures before mass-production or large-scale installation [21,22]. In addition, considering the process impacts on both user-safety and the environment, the lament format of feedstock material to FDM process is less hazardous than the other formats of feedstock, such as powder in powder-based AM processes [23][24][25][26].…”

A Numerical and Experimental Study into Thermal Behavior of Micro Friction Stir Welded Joints of Al 1050 and Copper Sheets

“…Today, in different industries, new methods are used to produce products [1][2][3][4][5], such as additive manufacturing methods, laser welding, and etc. [6][7][8], and also to save costs, various methods such as destructive and non-destructive tests and process simulations are used [9].…”

Verification of Stress Transformation in Anisotropic Material Additively Manufactured by Fused Deposition Modeling (FDM)

“…There is debate, however, as to the suitability of objects made using FDM as accurate representations of their production counterparts, in the realm of either AM or traditional manufacturing processes [11] [12] [13] [14]. As FDM necessitates forming polymer lament into layers, the mechanical behavior under loading of the object at the layer boundaries may differ from the bulk behavior of the polymer that the part is composed of, making the part's loading behavior anisotropic [15][16]. While many manufacturers provide mechanical properties in the material speci cations for their lament materials, the extensiveness of the documentation varies greatly in the tests performed and the print settings speci ed.…”