✦ LIBER ✦

Three-dimensional transient finite element analysis of the selective laser sintering process

✍ Scribed by L. Dong; A. Makradi; S. Ahzi; Y. Remond

Publisher: Elsevier Science
Year: 2009
Tongue: English
Weight: 528 KB
Volume: 209
Category: Article
ISSN: 0924-0136
DOI: 10.1016/j.jmatprotec.2008.02.040

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✦ Synopsis

A transient three-dimensional finite element model is developed to simulate the phase transformation during the selective laser sintering process; taking into account the thermal and sintering phenomena involved in this process. A bi-level structure integration procedure is chosen, in which the temperature dependent thermal conductivity, specific heat, and density are integrated at the outer level then used as material constants for the integration of the heat equation in the inner level. Results for temperature and density distribution, using a polycarbonate powder, are presented and discussed.

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