Topic
Laser beam welding
About: Laser beam welding is a research topic. Over the lifetime, 23927 publications have been published within this topic receiving 210572 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this paper, the authors cover the latest developments in enhanced mechanical properties of aluminium alloys, and high performance joining techniques, including laser beam welding and friction stir welding, and compare them with the traditional aluminum alloys.
1,726 citations
TL;DR: In this paper, the recent progress in laser welding of magnesium alloys has been reviewed from different perspectives, such as porosity, cracking, oxide inclusions and loss of alloying elements.
522 citations
TL;DR: In this paper, a thermal analysis for laser heating and melting materials is derived for a Gaussian source moving at a constant velocity, where the resulting temperature distribution, cooling rate distribution, and depth of melting are related to the laser spot size, velocity, and power level.
Abstract: A thermal analysis for laser heating and melting materials is derived for a Gaussian source moving at a constant velocity. The resulting temperature distribution, cooling rate distribution, and depth of melting are related to the laser spot size, velocity, and power level. As the power is increased to heat the liquid above the boiling point, a transition to deep penetration welding is described. Calculations are presented for 304‐stainless steel which are in agreement with experiment.
520 citations
TL;DR: A theoretical analysis of the energy balance in the laser - metal interaction zone is carried out in this article, where heat transfer due to the recoil-pressure-induced melt flow is taken into consideration.
Abstract: A theoretical analysis of the energy balance in the laser - metal interaction zone is carried out. The heat transfer due to the recoil-pressure-induced melt flow is taken into consideration. It is shown that, for the absorbed laser intensities typical in welding and cutting, the recoil pressure induces high-velocity melt-flow ejection from the interaction zone. This melt flow carries away from the interaction zone a significant portion of the absorbed laser intensity (about 70 - 90% at low laser intensities); thus, convection-related terms can be ignored neither in calculations of the energy balance in the interaction zone nor in calculations of the thermal field in the vicinity of the weld pool or cutting front.
492 citations