| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Béraud, Nicolas
Université Grenoble Alpes
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2023Bichromatic melt pool thermal measurement based on a Red, Green, and Blue camera: Application to additive manufacturing processescitations
- 2021A guide to select strain sensors to be embedded in smart metal parts built by WAAM
- 2019Towards a novel thermal criterion for form defects prediction in Wire Arc Additive Manufacturing: Finite element modelling and validation
- 2017Improving dimensional accuracy in EBM using beam characterization and trajectory optimizationcitations
- 2015Evaluation de la chaine numérique en fabrication par Electron Beam Melting
- 2014New Trajectories in Electron Beam Melting Manufacturing to Reduce Curling Effectcitations
Places of action
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article
Improving dimensional accuracy in EBM using beam characterization and trajectory optimization
Abstract
Managing the dimensional accuracy of parts produced by the Electron Beam Melting process is a challenge. For small dimensions, as in lattice structures (strut diameters), accuracy becomes even more important and geometric quality is linked to mechanical properties. The dimensional quality of parts produced by EBM can be influenced by many process parameters. Simulating the process can help the machine user to choose the best process parameters and improve build dimensional accuracy. The work presented here is based on a method for linking process parameters with beam parameters. Once linked, both sets of parameters are then integrated into a full simulation of the process in order to make trajectory optimization possible. First, this paper explains how the finite element model described in the literature can be improved to simulate the multilayer EBM process. It then describes how this simulation is used to develop a method to characterize the machine beam and determine the link between the focus current and the beam diameter. Finally, it shows how this simulation can be applied to a built shape (vertical strut) hence demonstrating improved accuracy of the produced part.