Predictive simulation of process windows for powder bed fusion additive manufacturing: Influence of the powder size distribution

Journal article
(Original article)


Publication Details

Author(s): Rausch A, Markl M, Körner C
Journal: Computers & Mathematics With Applications
Publisher: Elsevier Ltd
Publication year: 2018
ISSN: 0898-1221
Language: English


Abstract

The properties of parts fabricated by powder bed fusion additive
manufacturing depend on the process strategy as well as the
characteristics of the powder bed. The aim of this study is to determine
the influence of different powder size distributions for certain
process parameters taken from a process window for Ti–6Al–4V. All
results are obtained from our in-house software Sample2D.
The first objective is identifying layer binding faults causing porous
structures. We demonstrate the influence of surface roughness of each
single layer for single- and multi-layer binding faults and the
consequences for process windows. The second objective is the
investigation of the final sample roughness. Generally, a minimal
surface roughness is aimed to reduce the post-processing effort for
surface finishing. By combining the findings regarding porosity and
sample surface roughness, we conclude that powder size distributions
with larger mean particle diameter generally diminish the process
reliability and increase the required energy input.



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)
Rausch, Alexander
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)


Research Fields

Additive Manufacturing
Lehrstuhl für Photonische Technologien
Modelling and Simulation
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)


How to cite

APA:
Rausch, A., Markl, M., & Körner, C. (2018). Predictive simulation of process windows for powder bed fusion additive manufacturing: Influence of the powder size distribution. Computers & Mathematics With Applications. https://dx.doi.org/10.1016/j.camwa.2018.06.029

MLA:
Rausch, Alexander, Matthias Markl, and Carolin Körner. "Predictive simulation of process windows for powder bed fusion additive manufacturing: Influence of the powder size distribution." Computers & Mathematics With Applications (2018).

BibTeX: 

Last updated on 2019-05-01 at 09:10