Modelling of electron beam absorption in complex geometries

Journal article
(Original article)


Publication Details

Author(s): Klassen A, Bauereiß A, Körner C
Journal: Journal of Physics D-Applied Physics
Publication year: 2014
Volume: 47
Journal issue: 6
ISSN: 0022-3727
Language: English


Abstract


Computational modelling of processes that involve highly energetic electrons like electron beam melting, welding, drilling or electron beam lithography, to name but a few, requires information about the attenuation of the electron beam as it passes through the sample. Depth-dose curves as a function of electron energy, target material as well as local surface obliquity have to be provided in situ during the calculation. The most efficient way to address this issue is by employing mathematical expressions. Therefore, we propose an electron beam model based on a set of semi-empirical equations available from different published literature and on theoretical considerations. Particular stress is thereby put on accuracy and the range of validity of the theoretical approach by comparison with experimental data. Finally, we apply our model to powder-bed based additive manufacturing. The numerical results demonstrate that electron beam absorption and depth of penetration have a strong influence on the quality of the fabricated product. © 2014 IOP Publishing Ltd.



FAU Authors / FAU Editors

Bauereiß, Andreas
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)
Klassen, Alexander
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)
Körner, Carolin Prof. Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)


Research Fields

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


How to cite

APA:
Klassen, A., Bauereiß, A., & Körner, C. (2014). Modelling of electron beam absorption in complex geometries. Journal of Physics D-Applied Physics, 47(6). https://dx.doi.org/10.1088/0022-3727/47/6/065307

MLA:
Klassen, Alexander, Andreas Bauereiß, and Carolin Körner. "Modelling of electron beam absorption in complex geometries." Journal of Physics D-Applied Physics 47.6 (2014).

BibTeX: 

Last updated on 2018-01-12 at 20:50