| 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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Villeneuve, François
Université Grenoble Alpes
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2023Fast simulation for powder bed fusion process based on thermal field pattern repetitions: application on electron beam melting processcitations
- 2022Equivalent Material analysis of Triply Periodic Minimal Surfaces
- 2020Analysis of geometrical defects in overhang fabrications in electron beam melting based on thermomechanical simulations and experimental validationscitations
- 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
- 2015Mechanical equivalent diameter of single struts for the stiffness prediction of lattice structures produced by Electron Beam Meltingcitations
- 2014New Trajectories in Electron Beam Melting Manufacturing to Reduce Curling Effectcitations
- 2014Towards Stiffness Prediction of Cellular Structures Made by Electron Beam Melting (EBM)citations
- 2013Identification on some design key parameters for additive manufacturing: application on Electron Beam Melting
- 2013Règles de Conception pour la Fabrication Additive de Matériaux Cellulaires en Titane par " Electron Beam Melting "
- 2013Design Rules for Additive Manufacturing of Titanium Cellular Structures by Electron Beam Melting
- 2012Metallic additive manufacturing: state-of-the-art review and prospectscitations
Places of action
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article
Analysis of geometrical defects in overhang fabrications in electron beam melting based on thermomechanical simulations and experimental validations
Abstract
International audience ; Electron Beam Melting is an innovative process for the production of massive parts with minimum support structures and negligible residual stress. However, some geometries, such as overhang volumes, still pose a challenge to manufacture and can result in non-negligible geometrical defects such as “side loss”. Based on thermomechanical simulations, the aim of this work is to understand the reasons for the appearance of this defect and its evolution throughout successive layer depositions. Simulation results indicate that side loss is due to the repetitive force applied by the new layers on the previous ones due to the fast shrinkage in the top of the part. In addition, both simulation and experimental analysis show an increase in the defect amplitude with increasing thickness of the overhang volume and its stabilization after the first millimeters of the overhang volume.