5 May 2017 Thermal analysis of fused deposition modeling process using infrared thermography imaging and finite element modeling
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Abstract
After years of development, Fused Deposition Modeling (FDM) has become the most popular technique in commercial 3D printing due to its cost effectiveness and easy-to-operate fabrication process. Mechanical strength and dimensional accuracy are two of the most important factors for reliability of FDM products. However, the solid-liquid-solid state changes of material in the FDM process make it difficult to monitor and model. In this paper, an experimental model was developed to apply cost-effective infrared thermography imaging method to acquire temperature history of filaments at the interface and their corresponding cooling mechanism. A three-dimensional finite element model was constructed to simulate the same process using element "birth and death" feature and validated with the thermal response from the experimental model. In 6 of 9 experimental conditions, a maximum of 13% difference existed between the experimental and numerical models. This work suggests that numerical modeling of FDM process is reliable and can facilitate better understanding of bead spreading and road-to-road bonding mechanics during fabrication.
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Xunfei Zhou, Xunfei Zhou, Sheng-Jen Hsieh, Sheng-Jen Hsieh, } "Thermal analysis of fused deposition modeling process using infrared thermography imaging and finite element modeling", Proc. SPIE 10214, Thermosense: Thermal Infrared Applications XXXIX, 1021409 (5 May 2017); doi: 10.1117/12.2262796; https://doi.org/10.1117/12.2262796
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