A two-dimensional axially-symmetric model of keyhole and melt pool dynamics during spot laser welding - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Revue de Métallurgie Année : 2013

A two-dimensional axially-symmetric model of keyhole and melt pool dynamics during spot laser welding

Résumé

For a better understanding of the physical phenomena associated with the appearance of defects in laser welding, a heat and fluid flow model is developed using Comsol Multiphysics . This first step of the project is focused on the modeling of a static laser shot on a sample of steel. This 2D axially-symmetric configuration is used to study the main physical phenomena related to the creation of the keyhole. This model takes into account the three phases of the matter: the vaporized metal, the liquid phase and the solid base. To track the evolution of these three phases, coupled equations of energy and momentum are solved. The liquid/vapor interface is tracked using the Level-Set method. The calculated velocity and free surface deformation are analyzed. Melt pool shapes are compared with experimental macrographs and the influence of some parameters such as laser power is discussed.

Dates et versions

hal-00914782 , version 1 (06-12-2013)

Identifiants

Citer

Mickael Courtois, Muriel Carin, Philippe Le Masson, Sadok Gaied. A two-dimensional axially-symmetric model of keyhole and melt pool dynamics during spot laser welding. Revue de Métallurgie, 2013, 110, pp.165-173. ⟨10.1051/metal/2013060⟩. ⟨hal-00914782⟩
227 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More