Validation Experiments for LBM Simulations of Electron Beam Melting

Ammer R, Markl M, Jüchter V, Körner C, Rüde U (2014)

Publication Language: English

Publication Type: Journal article

Publication year: 2014


Publisher: World Scientific Publishing

Pages Range: 1-9


DOI: 10.1142/S0129183114410095


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.

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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.


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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