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| Naji, M. |
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| Petrov, R. H. | Madrid |
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| Azevedo, Nuno Monteiro |
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Kleijn, Chris
Delft University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2021The Effects of Process Parameters on Melt-pool Oscillatory Behaviour in Gas Tungsten Arc Weldingcitations
- 2021A simulation-based approach to characterise melt-pool oscillations during gas tungsten arc weldingcitations
- 2021Modeling of a continuous physical vapor deposition processcitations
- 2021The Effect of Groove Shape on Molten Metal Flow Behaviour in Gas Metal Arc Weldingcitations
- 2018Revealing internal flow behaviour in arc welding and additive manufacturing of metalscitations
- 2016Marangoni driven turbulence in high energy surface melting processescitations
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article
The Effect of Groove Shape on Molten Metal Flow Behaviour in Gas Metal Arc Welding
Abstract
One of the challenges for development, qualification and optimisation of arc welding processes lies in characterising the complex melt-pool behaviour which exhibits highly non-linear responses to variations of process parameters. The present work presents a computational model to describe the melt-pool behaviour in root-pass gas metal arc welding (GMAW). Three-dimensional numerical simulations have been performed using an enhanced physics-based computational model to unravel the effect of groove shape on complex unsteady heat and fluid flow in GMAW. The influence of surface deformations on the magnitude and distribution of the heat input and the forces applied to the molten material were taken into account. Utilising this model, the complex thermal and fluid flow fields in melt pools were visualised and described for different groove shapes. Additionally, experiments were performed to validate the numerical predictions and the robustness of the present computational model is demonstrated. The model can be used to explore the physical effects of governing fluid flow and melt-pool stability during gas metal arc root welding. ; Team Marcel Hermans ; ChemE/Transport Phenomena