3-D FE heat transfer simulation of quasi-simultaneous laser transmission welding of thermoplastics

Acherjee, Bappa

doi:10.1007/s40430-019-1969-3

Cited by 16 publications

(6 citation statements)

References 16 publications

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“…The heat source due to pressure by considering the correct heat distribution by double ellipsoidal power density. The software used for the simulations such as SYSWELD (Saadlaoui et al, 2018), COMSOL-Multiphysics, Flow3D (Huang et al, 2020;Liu et al, 2020;Raza et al, 2023), Fluent (Zhang and Wu, 2015), Ansys (Acherjee, 2019;Acherjee, 2021c;Acherjee, 2022;Unni and Muthukumaran, 2022), CFDX, and the use of open source OpenFoam (Tang et al, 2020;Tang et al, 2022;Flint et al, 2023) through its compiler, have solved the fluid dynamics, evolution, and behavior of the keyhole geometry. Research is still lacking since the thermo-physical properties of the liquid and metal vapor are lacking.…”

Section: Discussionmentioning

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: Discussionmentioning

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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“…In LTW, the distribution of laser energy in depth satisfies the Beer-Lambert law based on the Gaussian volume heat source model, and the distribution of volume heat source can be expressed as follows [49]:…”

Section: Figure 3 Rotating Gaussian Volume Heat Source Modelmentioning

confidence: 99%

“…where R corresponds to the radius of the light spot; 𝛼 is the material absorption coefficient, which is related to the absorbent content in the absorbing material; and x, y, and z are the coordinates of points in the volume heat source. In LTW, the distribution of laser energy in depth satisfies the Beer-Lambert law based on the Gaussian volume heat source model, and the distribution of volume heat source can be expressed as follows [49]:…”

Section: Figure 3 Rotating Gaussian Volume Heat Source Modelmentioning

confidence: 99%

Numerical Simulation of Laser Transmission Welding—A Review on Temperature Field, Stress Field, Melt Flow Field, and Thermal Degradation

Zuo

2023

Polymers

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Laser transmission welding (LTW) is an excellent process for joining plastics and is widely used in industry. Numerical simulation is an important method and area for studying LTW. It can effectively shorten the experimental time and reduce research costs, aid in understanding the welding mechanism, and enable the acquisition of ideal process parameters. To enhance understanding of numerical simulation studies on LTW and facilitate research in this area, this paper presents a comprehensive overview of the progress made in numerical simulation of LTW, covering the following aspects: (a) characteristics of the three heat source models for LTW temperature field simulation, including surface heat source model, volumetric heat source model, and hybrid heat source model, along with the methods, results, and applications of temperature field simulation based on these models and experimental validation; (b) numerical simulation of thermal and residual stresses based on the temperature field; (c) numerical simulation of the melt flow field; and (d) predictive simulation of material degradation. The conclusion of the review and the prospects for further research work are eventually addressed.

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“…A single laser beam is guided by special mirrors at very high speeds several times along the part that is to be welded (Fig. 9), gradually heating and melting the entire weld seam at the same time [60]. Simultaneous heating results in overall welding process stability, especially in the case where the weld collapse is critical.…”

Section: Processes Used In Laser Welding Of Plasticsmentioning

confidence: 99%

“…Ghasemi et al [105] studied the meltdown phenomena during quasi-simultaneous laser welding of PC and PP and correlated the degree of meltdown with different process parameters, namely laser power, welding speed, clamp pressure among others. Acherjee developed a three-dimensional thermal model to study the transient heat transfer phenomena during the quasisimultaneous welding process [60]. The effect of welding parameters on weld pool temperature was also investigated and the model was able to predict the time-dependent temperature history in three-dimensional space, which could be further used to predict the weld seam dimensions and for process optimization.…”

Section: Motionmentioning

confidence: 99%

Laser welding of thermoplastics: An overview on lasers, materials, processes and quality

Gonçalves

Duarte

Martins

et al. 2021

Infrared Physics & Technology

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3-D FE heat transfer simulation of quasi-simultaneous laser transmission welding of thermoplastics

Cited by 16 publications

References 16 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

Numerical Simulation of Laser Transmission Welding—A Review on Temperature Field, Stress Field, Melt Flow Field, and Thermal Degradation

Laser welding of thermoplastics: An overview on lasers, materials, processes and quality

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