Kamel Abderrazak

TL;DR: In this paper, both the experiment and the finite volume method (FVM) are utilized to investigate the thermal phenomena during continuous laser keyhole welding, and it has been found that the shape and size of the molten pool in the workpiece are affected by welding parameters such as welding speed and the incident laser power.

TL;DR: In this paper, a 2D axisymmetric model of a molten pool created by a laser heat source has been developed, which solves the coupled equations of a laminar fluid flow and heat transfer to demonstrate the flow behavior in the pool.

TL;DR: In this article, a moving distributed heat source model based on Goldak's method was implemented into finite volume thermal simulations in order to predict temperature distributions during the welding process of a magnesium alloy and to study the effects of variations in thermal properties, absorption coefficient and gas shielding on the computed temperature distributions and weld pool dimensions.

TL;DR: In this article, the use of an Nd:YAG laser for thin-plate AZ91 magnesium alloy welding was optimized, and the welding cross section geometries were determined by optical microscopy analysis.

TL;DR: In this paper, an analytical thermal model for the weldability of magnesium alloys (WE43) using an industrial (CO 2 ) laser source has been presented to the industrial community for the determination of the penetration depth and the bead width as a function of both the incident laser power and welding speed.