Journal article


Validation Experiments for LBM Simulations of Electron Beam Melting


Publication Details
Author(s): Ammer R, Markl M, Jüchter V, Körner C, Rüde U
Publisher: World Scientific Publishing
Publication year: 2014
Pages range: 1-9
ISSN: 0129-1831
Language: English

Abstract

This paper validates three-dimensional (3D) simulation results of electron beam melting (EBM) processes by comparing experimental and numerical data. The physical setup is presented which is discretized by a 3D thermal lattice Boltzmann method (LBM). An experimental process window is used for the validation depending on the line energy injected into the metal powder bed and the scan velocity of the electron beam. In the process window, the EBM products are classified into the categories, porous, good and swelling, depending on the quality of the surface. The same parameter sets are used to generate a numerical process window. A comparison of numerical and experimental process windows shows a good agreement. This validates the EBM model and justifies simulations for future improvements of the EBM processes. In particular, numerical simulations can be used to explain future process window scenarios and find the best parameter set for a good surface quality and dense products. © 2014 World Scientific Publishing Company.



Focus Area of Individual Faculties


How to cite
APA: Ammer, R., Markl, M., Jüchter, V., Körner, C., & Rüde, U. (2014). Validation Experiments for LBM Simulations of Electron Beam Melting. International Journal of Modern Physics C, 1-9. https://dx.doi.org/10.1142/S0129183114410095

MLA: Ammer, Regina, et al. "Validation Experiments for LBM Simulations of Electron Beam Melting." International Journal of Modern Physics C (2014): 1-9.

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