Influence of process parameters on thermal and mechanical properties of polylactic acid fabricated by fused filament fabrication |
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| Authors: | Hamidreza Vanaei Mohammadali Shirinbayan Michael Deligant Kaddour Raissi Joseph Fitoussi Sofiane Khelladi Abbas Tcharkhtchi |
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| Affiliation: | 1. Arts et Metiers Institute of Technology, CNAM, LIFSE, HESAM University, Paris, France;2. Arts et Metiers Institute of Technology, CNRS, CNAM, PIMM, HESAM University, Paris, France |
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| Abstract: | Fused filament fabrication is considered one of the most used processes in additive manufacturing rapid prototypes out of polymeric material. Poor strength of the deposited layers is still one of the main critical problems in this process, which affects the mechanical properties of the final parts. To improve the mechanical strength, investigation into various process parameters must be considered. In this article, the influence of different process parameters has been experimentally investigated by means of physicochemical and mechanical characterizations. Special attention was given to the thermal aspect. In that respect, the in situ measurement of temperature profile during deposition indicated that several parameters affect the cooling rate of material and consequently have an influence on the final parts. It was found that the influence of increasing the extruder temperature is more significant in comparison with other process parameters. |
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| Keywords: | FFF in situ temperature measurement polylactic acid process parameters |
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