Numerical and experimental study on the molten pool dynamics and fusion zone formation in multi-pass narrow gap laser welding

Gu, Heng; Väistö, Tapio; Li, Lin

doi:10.1016/j.optlastec.2020.106081

Cited by 16 publications

(3 citation statements)

References 38 publications

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Section: Phase Change For Other Purposesmentioning

confidence: 99%

“…Shah et al 412 discovered that the width or depth of the laser welding pool increased with the increase of beam intensity from 5.2 to 15 kW and decreasing of the welding radius from 0.35 to 0.14 mm. Gu et al 409 found that the welding pool profiles (convex, flat, and concave) were related to the pass numbers in the multipass narrow gap laser welding process. A complete fusion map was presented in this work.…”

Section: Phase Change For Other Purposesmentioning

confidence: 99%

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Recent Advances in CFD Simulations of Multiphase Flow Processes with Phase Change

Zhu

Zhang

et al. 2023

Ind. Eng. Chem. Res.

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Phase change is a phenomenon that has been extensively utilized in chemical engineering, energy, electronics, vehicle, and space exploration. From both the science and engineering perspectives, gaining a profound understanding of the intricacies of multiphase flow processes accompanied by heat and mass transfer due to phase change is of fundamental importance. Indeed, the computational fluid dynamics (CFD) has been increasingly applied as an effective tool to give an in-depth and efficient analysis of the phase change processes, thereby enhancing our understanding and capacity to control and optimize the phase change effects in these processes. This paper seeks to provide a comprehensive review of the utilization of CFD methodologies in the simulations of phase change flows across various applications, including temperature management, drying, separation and purification, and others. First, the CFD models at various scales that are developed to elucidate the phase change processes are summarized. Second, the noteworthy advances in the recent CFD simulation work on various phase change processes are presented, respectively. Finally, the challenges and potential prospects to facilitate the application of the phase change flow are discussed. The current review aims to offer insightful guidance for the CFD modeling of phase change processes in numerous engineering application scenarios.

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Section: Phase Change For Other Purposesmentioning

confidence: 99%

Section: Phase Change For Other Purposesmentioning

confidence: 99%

Recent Advances in CFD Simulations of Multiphase Flow Processes with Phase Change

Zhu

Zhang

et al. 2023

Ind. Eng. Chem. Res.

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“…Laser butt welding is increasingly adopted in the aerospace, automotive and shipbuilding industries, which uses a moving laser beam as the heat source and joints two parts by melting and solidification [1][2][3]. The interaction between laser and matter accompanies by the rapid heating and cooling, involving many highly dynamic and transient physical phenomena, such as melting, evaporation, molten metal flow, solidification and non-equilibrium phase changes [4,5] , during which defects such as pores and spattering may occur.…”

Section: Introductionmentioning

confidence: 99%

Quantifying the effects of gap on the molten pool and porosity formation in laser butt welding

Guo

Wang

Liu

et al. 2023

International Journal of Heat and Mass Transfer

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Narrow gap laser welding (NGLW) of structural steels—a technological review and future research recommendations

R¹,

Amrutha²,

Rashid

et al. 2020

Int J Adv Manuf Technol

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Numerical and experimental study on the molten pool dynamics and fusion zone formation in multi-pass narrow gap laser welding

Cited by 16 publications

References 38 publications

Recent Advances in CFD Simulations of Multiphase Flow Processes with Phase Change

Recent Advances in CFD Simulations of Multiphase Flow Processes with Phase Change

Quantifying the effects of gap on the molten pool and porosity formation in laser butt welding

Narrow gap laser welding (NGLW) of structural steels—a technological review and future research recommendations

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