An experimental and numerical case study of thermal and mechanical consequences induced by laser welding process

Jia, Yabo; Saadlaoui, Yassine; Hamdi, Hédi; Sijobert, Julien; Roux, Jean‐Christophe; Bergheau, Jean‐Michel

doi:10.1016/j.csite.2022.102078

Cited by 9 publications

(2 citation statements)

References 32 publications

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“…Table 4 presents the case studies of laser welding modeling, in a systematic, synthesized, and chronological summary. Likewise, the categories that were observed in the studies were physical model, mathematical model, work descriptors, and case study, as well as whether it is a thermomechanical or multi-physical study and the type of software used in the simulation (Cho et al, 2012;Beiranvand et al, 2018;Cho et al, 2018;Ali et al, 2021;Ebrahimi et al, 2021;Halm et al, 2021;Ebrahimi et al, 2022;Examilioti et al, 2022;Jia et al, 2022;Mohan et al, 2022;Xue et al, 2022;Zhang et al, 2022).…”

Section: Cfd Tool For Engineering Analysismentioning

confidence: 99%

Numerical simulations and mathematical models in laser welding: a review based on physics and heat source models

Jiménez-Xamán,

Hernández-Hernández,

Tariq

et al. 2024

Front. Mech. Eng.

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The dominant phenomenon in laser welding processes is heat transfer by conduction, making it crucial to gain insights into energy distribution within the heat-affected region, including the melt pool. Thermal analysis enables the description of thermo-mechanical, metallurgical aspects, and also addresses studies related to fluid flow and energy transfer. As research in welding processes has advanced, these models have evolved. This is why it is now efficient to use computational modeling techniques as it allows us to analyze the behavior of laser welding during the process. This underlines the importance of this work which has carried out an exhaustive theoretical literature review with the objective of classifying and describing the numerical simulations of laser welding based on the physics involved. In that sense, the mathematical models and strategies used in laser welding are explored in a general way. Therefore, two types of laser welding by conduction and deep penetration are defined from this point and they are categorized according to the phenomena involved in Model Heat Conduction and Model Integral Multiphysics. This comprehensive review article serves as a valuable resource for higher education students by providing a structured and detailed exploration of laser welding and its mathematical modeling. By classifying and describing numerical simulations based on the physics involved, it offers a framework for students to understand the complexities of this field. Additionally, this innovative approach to organizing and presenting research contributes to educational innovation by facilitating a more efficient and effective learning experience, helping students acquire the knowledge and research skills necessary for advancements in the laser welding domain.

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Section: Cfd Tool For Engineering Analysismentioning

confidence: 99%

Numerical simulations and mathematical models in laser welding: a review based on physics and heat source models

Jiménez-Xamán,

Hernández-Hernández,

Tariq

et al. 2024

Front. Mech. Eng.

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“…The convective heat loss was described by the Newton's law, and the transfer coefficient was set at 20 W•m 2 . Heat dissipation by radiation was defined by the Stefan-Boltzmann's law, and the surface emissivity was 0.8 [32]. The material's behavior was described based on the software database, and a phase change of α to β at 995 • C was considered; more details can be found in the documentation of SYSWELD TM .…”

Section: Effect Of Restraint Intensity On Welding Residual Stressmentioning

confidence: 99%

Finite Element Analysis of Restraint Intensities and Welding Residual Stresses in the Ti80 T-Joints

Zhang

Wang

Chen

et al. 2023

Metals

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The restraint intensity of Ti80 T-joints was investigated using finite element analyses. The influence of slit height, vertical plate thickness and base plate thickness was studied, respectively. Results show that the slit height and vertical plate thickness have a significant impact, while the effect of base plate thickness is negligible. A prediction model of restraint intensity was constructed through binary linear regression; the error was estimated at about 10%. Then, finite element simulations were carried out to study the welding residual stresses of specimens with different restraint intensities. The results show that residual stresses on the backing weld surface are higher in the middle and lower at both ends, while the weld root shows opposite results. In general, stresses at the weld root are greater than those on the weld surface. The mean value of the residual stress at the weld root increases with the increase in restraint intensity but not uniformly, i.e., it is slow at first and then it increases rapidly. A prediction model of the residual stress was produced through cubic fitting, and the errors between the finite element simulations and predictions were about 8%. Using the prediction model, the residual stress of actual Ti80 alloy workpieces can be estimated before welding, and a corresponding strategy for avoiding cracks can be generated.

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A comprehensive review on recent laser beam welding process: geometrical, metallurgical, and mechanical characteristic modeling

Nabavi,

Farshidianfar,

Dalir

2023

Int J Adv Manuf Technol

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An experimental and numerical case study of thermal and mechanical consequences induced by laser welding process

Cited by 9 publications

References 32 publications

Numerical simulations and mathematical models in laser welding: a review based on physics and heat source models

Numerical simulations and mathematical models in laser welding: a review based on physics and heat source models

Finite Element Analysis of Restraint Intensities and Welding Residual Stresses in the Ti80 T-Joints

A comprehensive review on recent laser beam welding process: geometrical, metallurgical, and mechanical characteristic modeling

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