Study of arc characteristics using varying shielding gas and optimization of activated-tig welding technique for thick AISI 316L(N) plates

Pavan, A. R.; Chandrasekar, N.; Arivazhagan, B.; Kumar, Suranjit; Vasudevan, M.

doi:10.1016/j.cirpj.2021.08.013

Cited by 21 publications

(11 citation statements)

References 36 publications

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“…Straight-sided square butt configuration was utilised with the application of a thin layer of activated flux before A-TIG welding. The A-TIG welding was performed with an optimised welding parameter to achieve narrow weld metal volume [33]. The HW-TIG welding was done using six-axis robotic (Model: R 1610) welding setup integrated with a non-consumable tungsten electrode connected to an MW 4000 DC power supply.…”

Section: Methodsmentioning

confidence: 99%

Evaluation of strength in stainless steel weld joints using ball indentation technique

Pavan

Kumar

Arivazhagan

et al. 2023

Materials Science and Technology

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In the present study, strength variations across the type 316LN stainless steel weld joints processed by advanced hot wire tungsten inert gas, activated tungsten inert gas, and hybrid laser metal inert gas welding processes were evaluated using automated ball indentation technique. The secondary dendrite arm spacing (SDAS) associated with welding heat input and welding thermal cycles strongly influenced the strength properties across the weld joints. The strength properties were lower at 823 K compared to 298 K because of thermally activated deformations. The hybrid laser metal inert gas welding process exhibited significantly narrower weld and higher strength in the weld and heat-affected zone due to finer SDAS and grain size, respectively, than the other weld joints.

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Section: Methodsmentioning

confidence: 99%

Evaluation of strength in stainless steel weld joints using ball indentation technique

Pavan

Kumar

Arivazhagan

et al. 2023

Materials Science and Technology

Self Cite

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“…After the completion of the process, additional cost was needed to clean the edges and maximum time was consumed to attain the full process [14]. Pavan et al [15] presented the bead on plate TIG process with aiding of activated flux to stainless steel material. The design of experiments was used to measure the optimization of process parameters.…”

Section: Introductionmentioning

confidence: 99%

Analytical and Neural Network Analysis on Flux-Coated Aluminium Alloy by Activated TIG Welding with Synthesized Nanocomposites

Raja¹,

Kumar

Kumari

et al. 2023

Journal of Nanomaterials

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This research focused to synthesize the material by the tungsten inert gas (TIG) welding process with support of appropriate flux coating material. Therefore the required amount of flux coating material was utilized to enhance the mechanical properties of the specified localized welded regions. Hence, this study concentrated to select the nano-SiO2 flux particles that were employed for TIG process. This activated TIG welding composes the flux-coated welding on the base metal of AA5083-H111, as this material was highly reactive with SiO2 by the presence of magnesium precipitates and well synthesized after the welding. The post- and preheat treatment process was achieved before and after welding. The selection of activated TIG process parameters composed of strengthened weld specimens along with constant parameters like electrode tip angle and flow rate, respectively. Initially, the process parameters were designed by the statistical analysis of Box Behnken method with support of regression formulation to determine the optimal solution. The maximum tensile strength was attained at the welding process parameters of welding speed (100 mm/min), voltage (13 V), and current (125 amps). The higher hardness was achieved at the process parameters of welding speed (80 mm/min), voltage (12 V), and current (125 amps), respectively. Finally, the neural network approach was utilized to verify the predicted responses of tensile and microhardness properties. The interaction plots, mean plots, and 3D scatter plots were influenced to enhance the process parameters. In this research, mechanical properties were enhanced by the flux-coated SiO2 and the analytical method also advances the optimal parameters.

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“…It not only optimizes the process parameters but also are simple and easy to use [12][13][14]. Sonar et al [15] used RSM methodology to optimize the welding parameters and solved the problem of reduced strength and corrosion resistance of IN-718 nickel-based alloy in the fusion zone due to segregation phenomena Pavan et al [16] used RSM to develop a mathematical model to optimize the process parameters of A-TIG welding, which improved the heart efficiency along with superior weld performance. Xue et al [17] used the RSM combined with the grey wolf algorithm to optimize the process parameters and improve the weld profile and performance.…”

Section: Introductionmentioning

confidence: 99%

Double pulse gas metal arc welding process parameter optimization and weld performance analysis based on response surface method

Bin,

Yao,

et al. 2023

Mater. Res. Express

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Double pulse gas metal arc welding (DP-GMAW) is a low-frequency modulated high-frequency pulse welding, which can fully stir the molten pool, and improve the forming and performance of the weld. In this study, a mathematical model was developed using the response surface method (RSM) with three main process parameters (welding current, peak-to-base ratio, welding speed) as input values with three key geometric characteristics parameters, and the mechanical properties of the resulting welds were investigated. The results showed that the parameter model developed in this study had less error and could optimize the process parameters better; the optimal process parameters (welding current, peak-to-base ratio, welding speed) were 160 A, 39.93%, and 83.11 cm min−1, respectively. The improved welding parameters result in better mechanical properties and better weld profile, and more stable welding process. As a result, this experiment provides a new perspective for process parameter optimization and mechanical properties research for weld manufacturing.

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Study of arc characteristics using varying shielding gas and optimization of activated-tig welding technique for thick AISI 316L(N) plates

Cited by 21 publications

References 36 publications

Evaluation of strength in stainless steel weld joints using ball indentation technique

Evaluation of strength in stainless steel weld joints using ball indentation technique

Analytical and Neural Network Analysis on Flux-Coated Aluminium Alloy by Activated TIG Welding with Synthesized Nanocomposites

Double pulse gas metal arc welding process parameter optimization and weld performance analysis based on response surface method

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