A complete modeling of heat and fluid flow applied to laser welding regimes is proposed. This model bas been developed using only a (Graphical User Interface) GUI of a finite element commercial code and can be easily usable in industrial R&D environments. The model takes into account the three phases of the matter: the vaporized metal, the liquid phase and the solid base. The liquid / vapour interface is tracked using the Level-Set method. To model the energy deposition, a new approach is proposed which consists of treating laser under its wave form by solving Maxwell’s equations. All these physics are coupled and solved simultaneously in Comsol Multyphysics®. The calculated velocity and free surface deformation are analyzed. An example of simulation leading to the formation of porosity is presented. Finally melt pool shapes evolution are compared to experimental macrographs.
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ICALEO 2013: 32nd International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing
October 6–10, 2013
Miami, Florida, USA
ISBN:
978-0-912035-98-7
PROCEEDINGS PAPER
Complete heat and fluid flow modeling of keyhole formation and collapse during spot laser welding Available to Purchase
Mickael Courtois;
Mickael Courtois
1
ArcelorMittal Global R&D Montataire
, F-60160 Montataire, France
2
Univ. Bretagne-Sud
, EA 4250, LIMATB, F-56100 Lorient, France
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Muriel Carin;
Muriel Carin
2
Univ. Bretagne-Sud
, EA 4250, LIMATB, F-56100 Lorient, France
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Philippe Le Masson;
Philippe Le Masson
2
Univ. Bretagne-Sud
, EA 4250, LIMATB, F-56100 Lorient, France
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Sadok Gaied;
Sadok Gaied
1
ArcelorMittal Global R&D Montataire
, F-60160 Montataire, France
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Mikhaël Balabane
Mikhaël Balabane
3
Institut Galilée Université
Paris 13, F-93430 Villetaneuse, France
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Published Online:
October 01 2013
Citation
Mickael Courtois, Muriel Carin, Philippe Le Masson, Sadok Gaied, Mikhaël Balabane; October 6–10, 2013. "Complete heat and fluid flow modeling of keyhole formation and collapse during spot laser welding." Proceedings of the ICALEO 2013: 32nd International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing. ICALEO 2013: 32nd International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing. Miami, Florida, USA. (pp. pp. 77-84). ASME. https://doi.org/10.2351/1.5062966
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