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- W2892041656 abstract "A transient simulation including the impact of the laser energy, the melting of the metal and the development of the weld pool was conducted to observe the evolution of the vapor capillary and the solidification of the melt in pulsed laser beam welding of AISI 304 steel. The phase field method was implemented to investigate the evolution and behavior of the liquid-gas interface during welding and to describe the condensed and vapor phases. The effects of phase transition, recoil pressure, thermo-capillary and natural convection, vaporization and temperature dependent material properties were taken into account. A Gaussian-like heat source under consideration of the Fresnel absorption model was used to model the energy input of the laser beam. The heat source model was extended by a newly developed empirical approach of describing multiple beam reflections in the keyhole. To validate this new model, the numerical results were compared to experimental data and good agreement regarding the size and shape of the weld pool was observed." @default.
- W2892041656 created "2018-09-27" @default.
- W2892041656 creator A5033426620 @default.
- W2892041656 date "2018-01-01" @default.
- W2892041656 modified "2023-09-23" @default.
- W2892041656 title "Numerical simulation of the weld pool dynamics during pulsed laser welding using adapted heat source and vaporization models" @default.
- W2892041656 hasPublicationYear "2018" @default.
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