Investigation of numerical modelling of TIG welding of austenitic stainless steel (304L)

Kumar, Pramod; Kumar, Rajesh; Arif, Abdul; Veerababu, M.

doi:10.1016/j.matpr.2020.03.544

Cited by 12 publications

(5 citation statements)

References 10 publications

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“…The outcomes demonstrated that when the best settings were used, the AMSW had 34.47% greater shear tensile stress and 28.57% higher tensile stress with a transverse load to the weld spot than the standard RSW. [100][101][102][103][104][105][106][107][108][109] The manufacturing industry is being revolutionized by AM, which enables the layer-by-layer deposition process to fabricate structures in almost net shape and with minimal material waste. But there are dimensional restrictions on parts made using the AM technique.…”

Section: Recent Developments In Welding-based Additive Manufacturingmentioning

confidence: 99%

Welding-based additive manufacturing processes for fabrication of metallic parts

Rathinasuriyan,

Elumalai,

Bharani Chandar

et al. 2023

Composites and Advanced Materials

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Additive Manufacturing (AM) is modernizing the manufacturing industry by enabling the layer-by-layer deposition process to manufacture objects in nearly any form with minimum material waste. However, components developed utilizing the AM process have dimensional constraints. To address this issue, AM-produced metal materials can be coupled with various welding processes. This article focuses on the foundations, highlighting the distinguishing features, capabilities, and challenges of welding-based AM processes by categorizing them into two major groups; arc welding-based AM like Cold Metal Transfer (CMT), Gas Metal Arc Welding (GMAW), Gas Tungsten Arc Welding (GTAW), Plasma Arc Welding (PAW), and high-energy density welding based AM like Laser Beam Welding (LBW) and Electron Beam Welding (EBW). The prior study findings of welding-based AM metal components on mechanical characteristics and microstructural characterization have been addressed. This work will aid researchers, academicians, and professional welders since it gathers vital information on welding-based AM processes. Furthermore, current research in the arena of welding-based AM and its future opportunities has been discussed.

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Section: Recent Developments In Welding-based Additive Manufacturingmentioning

confidence: 99%

Welding-based additive manufacturing processes for fabrication of metallic parts

Rathinasuriyan,

Elumalai,

Bharani Chandar

et al. 2023

Composites and Advanced Materials

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“…It decides the metal deposition rate and depth of penetration during welding. By increasing the current, the peak temperature during the weld increases [19] and also the residual stress increases [20]. As welding technique affects the inservice performance of the welded structures post weld treatments are carried out.…”

Section: Literature Reviewmentioning

confidence: 99%

Numerical investigation of residual stresses in circumferential and longitudinal welded joints

2022

IJATEE

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Welding is a fabrication technique where several variables are involved, which affect the output. Thus, making it a complex manufacturing technique. Welding is being used commonly in power plants, aerospace, marine and pressure vessel applications. Residual stress is one of the detrimental effects which is induced due to welding. Residual stresses induced in the base metals produce distortions such as buckling and bending [1]. The magnitude of peak residual stresses will be in the range of yield strength of the metal. Weld distortions significantly ruin the performance and reliability of the welded components [2]. In case of welded cylinder structures, the residual stress variation and distortion are more complex as it produces axial and circumferential shrinkages in the cylinder. Circumferential and longitudinal welded cylinders are used in piping systems carrying fluids at very high temperature [3].

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“…They investigated the impact of varying voltage, welding current, and welding speed as input parameters on temperature distribution. Furthermore, they reported that with increasing current at constant voltage and welding speed, the peak temperature at the welding line has risen [6]. Vinoth et al in 2020 optimized the input parameters such as current, welding speed, and gas flow rate.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Analysis on TIG Arc Welding of Stainless Steel Using RSM Approach

Karganroudi

Moradi

Attar

et al. 2021

Metals

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This study involves the validating of thermal analysis during TIG Arc welding of 1.4418 steel using finite element analyses (FEA) with experimental approaches. 3D heat transfer simulation of 1.4418 stainless steel TIG arc welding is implemented using ABAQUS software (6.14, ABAQUS Inc., Johnston, RI, USA), based on non-uniform Goldak’s Gaussian heat flux distribution, using additional DFLUX subroutine written in the FORTRAN (Formula Translation). The influences of the arc current and welding speed on the heat flux density, weld bead geometry, and temperature distribution at the transverse direction are analyzed by response surface methodology (RSM). Validating numerical simulation with experimental dimensions of weld bead geometry consists of width and depth of penetration with an average of 10% deviation has been performed. Results reveal that the suggested numerical model would be appropriate for the TIG arc welding process. According to the results, as the welding speed increases, the residence time of arc shortens correspondingly, bead width and depth of penetration decrease subsequently, whilst simultaneously, the current has the reverse effect. Finally, multi-objective optimization of the process is applied by Derringer’s desirability technique to achieve the proper weld. The optimum condition is obtained with 2.7 mm/s scanning speed and 120 A current to achieve full penetration weld with minimum fusion zone (FZ) and heat-affected zone (HAZ) width.

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Investigation of numerical modelling of TIG welding of austenitic stainless steel (304L)

Cited by 12 publications

References 10 publications

Welding-based additive manufacturing processes for fabrication of metallic parts

Welding-based additive manufacturing processes for fabrication of metallic parts

Numerical investigation of residual stresses in circumferential and longitudinal welded joints

Experimental and Numerical Analysis on TIG Arc Welding of Stainless Steel Using RSM Approach

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