Determination of the heat source parameters for the case of simultaneous two-sided laser-arc welding of extended T-joints

Valdaytseva, Ekaterina; Udin, Ilya Nikolaevich

doi:10.1088/1742-6596/1109/1/012009

Cited by 2 publications

(2 citation statements)

References 2 publications

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“…As explained, the large grain size in HAZ is the main factor causing the large residual stress; as shown in Figure 5c, Churiaque et al [76] optimized the parameters of fillet welds of 8 mm-thick EH36 steel plate using a numerical simulation, and showed that the large grain size in HAZ is the main factor causing the larger residual stress. Finally, the full penetration welds with displacement disturbance of 1.29 mm for the bottom plate, 1.92 mm for Rib Plate and 380 MPA for maximum residual stress are obtained, the welding speed (2.2 m/min) is 1.76 times higher than that of Valdaytseva et al [77] (1.25 m/min). Because of the difference in action point between the laser and arc center in the paraxial coupling, both of them will produce a molten pool and converge, and then the molten pool will be affected by both.…”

Section: Granular Bainite + Acicular Ferritementioning

confidence: 78%

A Review of Numerical Simulation of Laser–Arc Hybrid Welding

et al. 2023

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Laser–arc hybrid welding (LAHW) is known to achieve more stable processes, better mechanical properties, and greater adaptability through the synergy of a laser and an arc. Numerical simulations play a crucial role in deepening our understanding of this interaction mechanism. In this paper, we review the current work on numerical simulations of LAHW, including heat source selection laws, temperature field, flow field, and stress field results. We also discuss the influence of laser–arc interaction on weld defects and mechanical properties and provide suggestions for the development of numerical simulations of LAHW.

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Section: Granular Bainite + Acicular Ferritementioning

confidence: 78%

A Review of Numerical Simulation of Laser–Arc Hybrid Welding

et al. 2023

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“…Mathematical models of a laser and arc source were considered in detail in the article [12], but only a T-joint was considered in it. To obtain the temperature field in the corner joint, it is necessary to modify the initial distribution of heat sources.…”

Section: Mathematical Modelmentioning

confidence: 99%

Аpplication Development for the Evaluation of Penetration in Laser and Laser-Arc Hybrid Welding of Tee and Corner Joints

Udin

Voropaev

Unt

2019

KEM

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Laser technologies deservedly take their place in modern mechanical engineering production. Using laser source for welding has already become common. However, the creation of critical welded constructions is impossible without extensive technological surveys, which can be greatly simplified by using a computational experiment. To achieve this goal, special programs are usually used. That can be unjustified difficult and thereby awkward for technological practice. The article describes an application built on the basis of a simplified model for calculating the temperature field for the cases of laser and laser-arc welding of internal fillet welds as well as single-sided T-joints and simultaneous double-sided welds. The results of calculations by the model and comparing them with experimental data have shown that it is sufficiently adequate for use in technological purposes. The developed application contemporaneously has a simple and intuitive interface, does not require significant computational resources and can be used for quick preliminary estimation of the result of welding for the selected type of weld.

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Determination of the heat source parameters for the case of simultaneous two-sided laser-arc welding of extended T-joints

Cited by 2 publications

References 2 publications

A Review of Numerical Simulation of Laser–Arc Hybrid Welding

A Review of Numerical Simulation of Laser–Arc Hybrid Welding

Аpplication Development for the Evaluation of Penetration in Laser and Laser-Arc Hybrid Welding of Tee and Corner Joints

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