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3D FE simulation for temperature evolution in the selective laser sintering process
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DOI：10.1016/j.ijmachtools.2003.10.019.png)
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A thermal model of selective laser sintering (SLS) has been developed. The model allows for the non-linear behavior of thermal conductivity and of specific heat due to temperature changes and phase transformations. The temperature evolution and the formation of the sintered part are simulated by a 3D finite element analysis based on continuous media theory. It is shown that the effect of sintering has a strong influence on thermal evolution through changing the thermal properties of the material. The results of the model were experimentally tested and confirmed by temperature measurements. (C) 2003 Elsevier Ltd. All rights reserved.
Keyword:
selective laser sintering
finite element method
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Numerical prediction of temperature and density distributions in selective laser sintering processes
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