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X.C. Wang and J.P. Kruth

Department of Mechanical Engineering, Catholic University of Leuven, Leuven, Belgium

doi:10.4203/ccp.67.1.7

X.C. Wang, J.P. Kruth, "A Simulation Model for Direct Selective Laser Sintering of Metal Powders", in B.H.V. Topping, (Editor), "Computational Techniques for Materials, Composites and Composite Structures", Civil-Comp Press, Edinburgh, UK, pp 57-71, 2000. doi:10.4203/ccp.67.1.7

Abstract

Selective laser sintering (SLS) of metal powders to produce 3D parts is a new technology. In order to improve the SLS process, it is necessary to investigate the influence of processing and material parameters. An analytical ray tracing model is developed to simulate the energy absorption and penetration in SLS. The model is applied to a Fe-Cu powder mixture, irradiated by Nd:YAG or by CO2 laser. It gives an evaluation of the total energy incoupling and optical penetration of the laser beam in powders and an estimation of the sintering zone dimension. The simulation results will help us to get a better understanding of the physical phenomena involved, to identify the processing window and to optimize the SLS process.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 67 COMPUTATIONAL TECHNIQUES FOR MATERIALS, COMPOSITES AND COMPOSITE STRUCTURES Edited by: B.H.V. Topping Paper I.7 A Simulation Model for Direct Selective Laser Sintering of Metal Powders X.C. Wang and J.P. Kruth Department of Mechanical Engineering, Catholic University of Leuven, Leuven, Belgium doi:10.4203/ccp.67.1.7 purchase the full-text of this paper Full Bibliographic Reference for this paper X.C. Wang, J.P. Kruth, "A Simulation Model for Direct Selective Laser Sintering of Metal Powders", in B.H.V. Topping, (Editor), "Computational Techniques for Materials, Composites and Composite Structures", Civil-Comp Press, Edinburgh, UK, pp 57-71, 2000. doi:10.4203/ccp.67.1.7 Abstract Selective laser sintering (SLS) of metal powders to produce 3D parts is a new technology. In order to improve the SLS process, it is necessary to investigate the influence of processing and material parameters. An analytical ray tracing model is developed to simulate the energy absorption and penetration in SLS. The model is applied to a Fe-Cu powder mixture, irradiated by Nd:YAG or by CO2 laser. It gives an evaluation of the total energy incoupling and optical penetration of the laser beam in powders and an estimation of the sintering zone dimension. The simulation results will help us to get a better understanding of the physical phenomena involved, to identify the processing window and to optimize the SLS process. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £92 +P&P)
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