Mesoscopic simulation of selective beam melting processes

Journal article
(Original article)


Publication Details

Author(s): Körner C, Attar E, Heinl P
Journal: Journal of Materials Processing Technology
Publication year: 2011
Volume: 211
Journal issue: 6
Pages range: 978-987
ISSN: 0924-0136
eISSN: 1873-4774


Abstract


A 2D lattice Boltzmann model is developed to investigate melting and re-solidification of a randomly packed powder bed under the irradiation of a Gaussian beam during selective beam melting processes. Numerical simulation results are presented where individual powder particles are considered. This approach makes many physical phenomena accessible which cannot be described in a standard continuum picture, e.g. the influence of the relative powder density, the stochastic effect of a randomly packed powder bed, capillary and wetting phenomena. The proposed model, although still 2D, is able to predict many experimental observations such as the well known balling effect. A process map is used to demonstrate the effect of the process parameters, beam powder and scan speed. The simulation results are compared with experimental findings during Selective Electron Beam Melting (SEBM). The comparison shows good agreement between simulation results and experiments. © 2010 Elsevier B.V. All rights reserved.



FAU Authors / FAU Editors

Attar, Elham
Graduiertenzentrum der FAU
Heinl, Peter
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)
Körner, Carolin Prof. Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)


Additional Organisation
Exzellenz-Cluster Engineering of Advanced Materials


Research Fields

Additive Manufacturing
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)
Modelling and Simulation
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)
E Lightweight Materials
Exzellenz-Cluster Engineering of Advanced Materials


How to cite

APA:
Körner, C., Attar, E., & Heinl, P. (2011). Mesoscopic simulation of selective beam melting processes. Journal of Materials Processing Technology, 211(6), 978-987. https://dx.doi.org/10.1016/j.jmatprotec.2010.12.016

MLA:
Körner, Carolin, Elham Attar, and Peter Heinl. "Mesoscopic simulation of selective beam melting processes." Journal of Materials Processing Technology 211.6 (2011): 978-987.

BibTeX: 

Last updated on 2019-30-07 at 13:34