Simulation of the temperature distribution in the selective beam melting process for polymer material

Language
en
Document Type
Article
Issue Date
2014-06-23
Issue Year
2014
Authors
Riedlbauer, Daniel
Mergheim, Julia
Steinmann, Paul
Editor
Abstract

In the present contribution the temperature distribution in the selective beam melting process for polymer materials is simulated to better understand the influence of process parameters on the properties of the produced part. The basis for the developed simulation tool is the nonlinear heat equation including temperature dependent functions for the heat capacity and the heat conduction which were obtained by experimental measurements. The effect of latent heat occurring in the process is also taken into account. The heat equation is discretized in time and space where a Runge-Kutta method of Radau IIA type is used for time integration. An adaptive finite element method is applied for the discretization in space and the model is implemented into the finite element library deal.II. The heat and cooling rate as important process parameters are simulated for different beam velocities. The ability for computing these process parameters makes the simulation tool suited for optimizing the process management of selective beam melting plants.

Journal Title
AIP Conference Proceedings
Volume
1593
Citation

AIP Conference Proceedings 1593 (2014):S.708-712. 23.05.2014 http://scitation.aip.org/content/aip/proceeding/aipcp/10.1063/1.4873876

DOI
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