Welding process optimization for the inner tank of the electric water heater by numerical simulation and experimental study

Wang, Meng; Guo, Kai; Wei, Yanhong; Cao, Chengming; Tong, Zhiwu

doi:10.1016/j.jmapro.2022.11.025

Cited by 12 publications

(7 citation statements)

References 26 publications

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“…The value of the convective heat transfer coefficient is 5-20 W/m 2 •K. σ = 2.67×10 À 8 W/m 2 •K 4 is Steffen-Boltzmann constant and ɛ = 0.6 is radiative heat transfer coefficient [28][29][30].…”

Section: Thermal Analysis and Mechanical Analysismentioning

confidence: 99%

Effect of groove angle on residual stress and deformation of super duplex stainless steel SAF 2507 and austenitic stainless steel 316L dissimilar plasma arc welding

Hong,

Huang,

et al. 2024

Materialwissenschaft Werkst

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Plasma arc welding of super duplex stainless steel SAF 2507 and austenitic stainless steel 316L was carried out by using V‐grooves with different groove angles. In order to predict the temperature distribution during the welding process, the Simufact Welding finite element software was used to establish an equivalent heat source to simulate the plasma arc welding process. The equivalent heat source consists of Goldak heat source and conical heat source. In mechanical simulation, the elastoplastic behavior with isotropic hardening is realized. The numerical results are in good agreement with the experimental results. The results show that with the increase of groove angle, the equivalent stress, transverse residual stress, longitudinal residual stress and overall deformation of SAF 2507/316L dissimilar steel welded joint decrease gradually, and the overall deformation of the joint increases gradually. The groove angle has little influence on the equivalent stress, transverse residual stress and overall deformation, but has great influence on the longitudinal residual stress and Z‐direction deformation. Comprehensive analysis of the stress and deformation results under four groove angles shows that the groove angle is too large or too small, which has a great influence on the stress and deformation of the weldment. The groove angle of 60° is better for SAF 2507/316L dissimilar steel welding.

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Section: Thermal Analysis and Mechanical Analysismentioning

confidence: 99%

Effect of groove angle on residual stress and deformation of super duplex stainless steel SAF 2507 and austenitic stainless steel 316L dissimilar plasma arc welding

Hong,

Huang,

et al. 2024

Materialwissenschaft Werkst

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show abstract

Section: Temperature and Stress Fieldsmentioning

confidence: 99%

“…A double ellipsoid heat source model proposed by Goldak 23,24 was used for the numerical simulation, as shown in Figure 2. The energy concentrations in the x , y , and z axes all attenuate in Gaussian distributions, and the front and back ellipsoids are characterised by the following mathematical formulas, where η is the heat efficiency, f f and f b are, respectively, the energy distribution coefficients of the front and back ellipsoidal, and f f + f b = 2. a is the half width of the heat source and b is the half depth of the heat source.…”

Section: Simulation and Experimental Detailsmentioning

confidence: 99%

Effects of welding parameters on Inconel 625 coating synthesised by tungsten inert gas cladding

Chen,

Wei,

Guo

et al. 2024

Materials Science and Technology

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Inconel 625 coatings were synthesised on AISI 4130 steel substrates by tungsten inert gas welding. Optimisation of process parameters was conducted through a combination of numerical simulations and technological experiments. The welding speed has a significant effect on the width and height of the cladding layer and the welding current mainly affected the penetration. A proper decrease of welding speed with raising heat input was conductive to the decrease of coating residual stress levels and dilution rates, which promoted the solid solution of corrosion resistant elements (Mo and Nb) and favoured the improvement of coating corrosion resistance. The cladding quality and efficiency could be improved by parameter optimisations through the combination of numerical and technological methods.

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“…This welding technology is divided into wet, dry and local dry underwater welding. In the case of the local dry underwater welding method, it involves the use of micro drainage device which is used to drain the water in the region of weld and local dry cavity is then created and then overcomes the obstruction caused by the underwater [2]. All these would not have been possible without adequate process welding parameter selections.…”

Section: Introductionmentioning

confidence: 99%

Effect of Welding Process Parameters on the Mechanical Properties of TIG and MIG Welds in HSS X65 Pipe-A Review

Lawal,

Afolalu

2024

IOP Conf. Ser.: Earth Environ. Sci.

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The study focused on the importance of the different welding parameters on the mechanical behavior of High Strength Steel (HSS) X65 steel pipes by reviewing the advantages of parameter optimization for the Tungsten Inert Gas (TIG) - Metal Inert Gas (MIG) welding processes. The parameters considered in the study include welding speed, welding current, welding voltage and gas flowrate of the welding. The effects of improper selection and parameter optimizations were highlighted and illustrated using different metallurgical and mechanical instances. The outcome of the study indicates that adequate parameter optimization aids in obtaining good weld quality with adequate mechanical and microstructural properties. Furthermore, it helps in the determination of variation in hardness in the heat affected zone as well as the base metal. Thus, this study provides insight to welding engineers on the importance of parameter optimization in the welding of steel pipe.

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Welding process optimization for the inner tank of the electric water heater by numerical simulation and experimental study

Cited by 12 publications

References 26 publications

Effect of groove angle on residual stress and deformation of super duplex stainless steel SAF 2507 and austenitic stainless steel 316L dissimilar plasma arc welding

Effect of groove angle on residual stress and deformation of super duplex stainless steel SAF 2507 and austenitic stainless steel 316L dissimilar plasma arc welding

Effects of welding parameters on Inconel 625 coating synthesised by tungsten inert gas cladding

Effect of Welding Process Parameters on the Mechanical Properties of TIG and MIG Welds in HSS X65 Pipe-A Review

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