Numerical study of the residual stress and welding deformation of mid-thick plate of AA6061-T6 in the multi-pass MIG welding process

Zhao, Shusen; Li, Yanmin; Huang, Rui Yuan; He, Zhu

doi:10.1007/s12206-021-1012-3

Cited by 10 publications

(2 citation statements)

References 25 publications

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“…Simulation software ABAQUS 6.6-3, ANSYS/EMAG, SYSWELD, and MARC are widely used to predict the thermal effects, mechanical behavior, and plastic deformation in the welding process, where the thermomechanical coupling calculation method of ABAQUS can more accurately simulate the mechanical properties of the workpiece and more easily edit the material properties and optimize the operation process through the script language [36][37][38][39]. The prediction experiment establishes two ABAQUS simulation models with the actual weld's exact dimensions.…”

Section: Abaqus Simulationmentioning

confidence: 99%

The Different Welding Layers and Heat Source Energy on Residual Stresses in Swing Arc Narrow Gap MAG Welding

Fang

Zhang

et al. 2023

Materials

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In this paper, in order to reduce the time cost of prediction experiments in industry, a new narrow gap oscillation calculation method is developed in ABAQUS thermomechanical coupling analysis to study the distribution trend of residual weld stresses in comparison with conventional multi-layer welding processes. The blind hole detection technique and thermocouple measurement method verify the reliability of the prediction experiment. The results show that the experimental and simulation results have a high degree of agreement. In the prediction experiments, the calculation time of the high-energy single-layer welding experiments is 1/4 of the traditional multi-layer welding. Two welding processes of longitudinal residual stress and transverse residual stress distribution trends are the same. The high-energy single-layer welding experiment stress distribution range and transverse residual stress peak are smaller, but the longitudinal residual stress peak is slightly higher, which can be effectively reduced by increasing the preheating temperature of the welded parts. This implies that in the specific case of increasing the initial temperature of the workpiece, the use of high-energy single-layer welding instead of multi-layer welding to study the residual stress distribution trend not only optimizes the weld quality but also reduces the time cost to a large extent.

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Section: Abaqus Simulationmentioning

confidence: 99%

The Different Welding Layers and Heat Source Energy on Residual Stresses in Swing Arc Narrow Gap MAG Welding

Fang

Zhang

et al. 2023

Materials

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“…The temperature-dependent thermophysical properties of AA6061-T6 were shown in Table 2. [32][33][34] Besides, the latent heat, solidus temperature, and liquidus temperature of AA6061-T6 are 390 kJ/kg, 582°C, and 652°C, respectively.…”

Section: Numerical Modelingmentioning

confidence: 99%

Numerical simulation of welding deformation and residual stress in aluminum alloy plate-to-sleeve welded joints

Zhao

You

2022

Proceedings of the Institution of Mechanical Engineers, Part L:

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The plate-to-sleeve welded joint is employed in the aluminum alloy spatial structure. The welding deformation and residual stress determine the dimensional accuracy and even increase the failure risk. Based on ABAQUS software and the coordinate transformation method, a finite element model with the arc weaving was developed to investigate the temperature field, welding deformation, and residual stress of an AA6061-T6 plate-to-sleeve welded joint with 8-pass. The metal inert gas welding experiment was performed with the corresponding joint, and the welding deformation and residual stresses were measured to verify the numerical results. The results show that the thermal cycle of the weaving weld and its vicinity have multiple peaks, and the time interval between two adjacent peaks is one weaving period. The deformation pattern of the joint is angular deformation. The maximum deformation is observed in the weld toe of the top surface. The longitudinal residual stress in the weld and its vicinity is high tensile stress, and that in the upper part of the sleeve is mainly compressive stress. The transverse residual stress in the weld and its vicinity of the top surface is low tensile stress, and that in the bottom surface is compressive stress. Furthermore, the evolution of the welding deformation and residual stresses attributed to subsequent weld passes was elaborated, which provides a reference for developing control schemes.

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Numerical Simulation Studies in Tungsten Inert Gas Welding of Inconel 718 Alloy Sheet

Vinoth,

Sivasankari

2024

J. of Materi Eng and Perform

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Numerical study of the residual stress and welding deformation of mid-thick plate of AA6061-T6 in the multi-pass MIG welding process

Cited by 10 publications

References 25 publications

The Different Welding Layers and Heat Source Energy on Residual Stresses in Swing Arc Narrow Gap MAG Welding

The Different Welding Layers and Heat Source Energy on Residual Stresses in Swing Arc Narrow Gap MAG Welding

Numerical simulation of welding deformation and residual stress in aluminum alloy plate-to-sleeve welded joints

Numerical Simulation Studies in Tungsten Inert Gas Welding of Inconel 718 Alloy Sheet

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