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3D FE simulation for temperature evolution in the selective laser sintering process |
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| Authors: | S. Kolossov E. Boillat R. Glardon P. Fischer M. Locher |
| Affiliation: | a Laboratory for Production Management and Processes, Institute for Production and Robotics, Swiss Federal Institute of Technology, 1015, Lausanne, Switzerland;b Laser Materials Processing, Institute of Applied Physics, University of Bern, 3012, Bern, Switzerland |
| Abstract: | 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. |
| Keywords: | Selective laser sintering Finite element method |
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