The Effect of Groove Shape on Molten Metal Flow Behaviour in Gas Metal Arc Welding
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-p...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/23/7444 |
| _version_ | 1797507499351343104 |
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| author | Amin Ebrahimi Aravind Babu Chris R. Kleijn Marcel J. M. Hermans Ian M. Richardson |
| author_facet | Amin Ebrahimi Aravind Babu Chris R. Kleijn Marcel J. M. Hermans Ian M. Richardson |
| author_sort | Amin Ebrahimi |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-10T04:49:19Z |
| format | Article |
| id | doaj.art-59155bdbbb5248e29d2a560a5a454845 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T04:49:19Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-59155bdbbb5248e29d2a560a5a4548452023-11-23T02:43:38ZengMDPI AGMaterials1996-19442021-12-011423744410.3390/ma14237444The Effect of Groove Shape on Molten Metal Flow Behaviour in Gas Metal Arc WeldingAmin Ebrahimi0Aravind Babu1Chris R. Kleijn2Marcel J. M. Hermans3Ian M. Richardson4Department of Materials Science and Engineering, Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Mekelweg 2, 2628 CD Delft, The NetherlandsDepartment of Materials Science and Engineering, Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Mekelweg 2, 2628 CD Delft, The NetherlandsDepartment of Chemical Engineering, Faculty of Applied Sciences, Delft University of Technology, van der Maasweg 9, 2629 HZ Delft, The NetherlandsDepartment of Materials Science and Engineering, Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Mekelweg 2, 2628 CD Delft, The NetherlandsDepartment of Materials Science and Engineering, Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Mekelweg 2, 2628 CD Delft, The NetherlandsOne 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.https://www.mdpi.com/1996-1944/14/23/7444gas metal arc welding (GMAW)melt-pool behaviourjoint shape designcomputational modelling |
| spellingShingle | Amin Ebrahimi Aravind Babu Chris R. Kleijn Marcel J. M. Hermans Ian M. Richardson The Effect of Groove Shape on Molten Metal Flow Behaviour in Gas Metal Arc Welding Materials gas metal arc welding (GMAW) melt-pool behaviour joint shape design computational modelling |
| title | The Effect of Groove Shape on Molten Metal Flow Behaviour in Gas Metal Arc Welding |
| title_full | The Effect of Groove Shape on Molten Metal Flow Behaviour in Gas Metal Arc Welding |
| title_fullStr | The Effect of Groove Shape on Molten Metal Flow Behaviour in Gas Metal Arc Welding |
| title_full_unstemmed | The Effect of Groove Shape on Molten Metal Flow Behaviour in Gas Metal Arc Welding |
| title_short | The Effect of Groove Shape on Molten Metal Flow Behaviour in Gas Metal Arc Welding |
| title_sort | effect of groove shape on molten metal flow behaviour in gas metal arc welding |
| topic | gas metal arc welding (GMAW) melt-pool behaviour joint shape design computational modelling |
| url | https://www.mdpi.com/1996-1944/14/23/7444 |
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