Powder layer deposition algorithm for additive manufacturing simulations

Journal article
(Original article)


Publication Details

Author(s): Markl M, Körner C
Journal: Powder Technology
Publisher: Elsevier B.V.
Publication year: 2018
Volume: 330
Pages range: 125-136
ISSN: 0032-5910
Language: English


Abstract

Powder bed fusion processes are additive manufacturing
technologies, where parts are built up layer by layer in a powder bed.
The highly complex geometries manufactured with these technologies are
the main advantage and the difference to conventional technologies,
where they are hardly machinable. Numerical models can replace the
intensive and expensive trial-and-error principle to find suitable
process parameters for the production of accurate parts.

This
work presents a stochastic algorithm to generate a random powder bed
for numerical simulations of powder bed fusion processes. The main focus
is the efficient coupling of a classical discrete element approach to a
grid-based solver used to simulate the melting process. The algorithm
is implemented and validated in the range of common relative powder
layer densities of powder bed fusion processes. The computational
efficiency is demonstrated and finally, the complete coupling to a process simulation of the selective electron beam melting process is presented.



FAU Authors / FAU Editors

Körner, Carolin Prof. Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)
Markl, Matthias Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)


How to cite

APA:
Markl, M., & Körner, C. (2018). Powder layer deposition algorithm for additive manufacturing simulations. Powder Technology, 330, 125-136. https://dx.doi.org/10.1016/j.powtec.2018.02.026

MLA:
Markl, Matthias, and Carolin Körner. "Powder layer deposition algorithm for additive manufacturing simulations." Powder Technology 330 (2018): 125-136.

BibTeX: 

Last updated on 2019-03-01 at 17:10