Thick SS316 materials TIG welding development activities towards advanced fusion reactor vacuum vessel applications

Kumar, Bhupesh; Gangradey, Ranjana

doi:10.1088/1742-6596/390/1/012063

Cited by 4 publications

(4 citation statements)

References 10 publications

(13 reference statements)

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“…Therefore, special edge preparation is proposed in order to support the cover, to eliminate the manufacturing gap and splashing in the cooling channels (Fig. 2(c)) [2,8]. EBW was carried out using "AELTC -12" installation (Fig.…”

Section: Research Methodology and The Equipment Usedmentioning

confidence: 99%

“…When using deep penetration EBW, a significant excess weld metal forms on the weld surface being associated with the occurrence of welding deformation and with different density of the core and the cast metal. Thus, in contrast to free surface welding, when welding in narrow gap with deep penetration the molten metal forming the excess weld metal periodically fills the steam-and-gas channel and the appearance of defects, such as a vacuum cavities, becomes possible [1][2][3]. The optimal double-sided welding conditions are presented in Table 2 [9].…”

Section: Research Methodology and The Equipment Usedmentioning

confidence: 99%

“…The use of traditional welding methods in this case is impossible for a number of reasons, namely, there is no possibility of making a cutting of the edges as well as of placing a welding torch in a narrow gap [2,3]. Another feature of the design is the need for joining parts made of aluminum bronze CuAl10Ni5Fe4 and corrosion-resistant steel 316L(N)-IG (Fig.…”

Section: Introductionmentioning

confidence: 99%

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Promising Electron-Beam Techniques for Joining Metal Materials in Power Equipment Designs

Goncharov

Portnov

Слива

et al. 2017

MSF

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In paper some design elements are considered, manufacturing of welded joints of which being identified with technological and metallurgical difficulties. The possibility of obtaining welded joints of large thickness parts using EBW with the evaluation of mechanical properties is shown, as well as dissimilar compounds of steel and composite on the basis of tungsten and bronze. The optimal modes of electron beam treatment are picked up and the microstructure of the obtained compounds is investigated confirming their quality.

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Section: Research Methodology and The Equipment Usedmentioning

confidence: 99%

Section: Research Methodology and The Equipment Usedmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Promising Electron-Beam Techniques for Joining Metal Materials in Power Equipment Designs

Goncharov

Portnov

Слива

et al. 2017

MSF

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“…It considerably reduces the weld passes required to fabricate a joint compared to the conventional TIG welding process. 6,7 The preheating of filler wire current influences the welding quality and it is referred to as hot wire current. Accordingly, a high deposition rate can be achieved.…”

Section: Introductionmentioning

confidence: 99%

Process parameter optimization of hot-wire TIG welding of 10 mm thick type 316LN stainless steel plates

Neelamegam

Meenakshisundaram

Muthukumaran

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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This study aims to reduce the number of weld passes and total heat input to 316LN stainless steel during hot-wire tungsten inert gas (HW-TIG) welding process by optimizing process parameters. Therefore, the response surface methodology (RSM) of design of experiments (DOE) approach has been adopted to optimize HW-TIG welding parameters and study the interaction between the parameters and responses. In order to minimize the total number of experimental runs, a design matrix was generated with 30 sets of process parameters. The bead-on plate welding experiments were carried out based on the above generated process parameters. Using the RSM, a quadratic model was developed based on a central composite design to establish the regression equations between input variables (welding current, wire feed current, welding speed, and wire feed rate) and responses (bead width, depth of penetration, and weld cross sectional area). The input process parameters and their responses were correlated with the regression model. Further, parameter values were optimized using the desirability approach and the optimized solutions were generated. Using the optimized process parameters, 316LN stainless steel weld joints were fabricated. Tensile testing and metallography samples were extracted from the fabricated weld joints. The results reveal that the optimization of process parameters by RSM based approach reduced the number of weld passes and improved the weld quality with lower heat input to 316LN stainless steel. In addition, the fabricated weld joint of 316LN stainless steel using the optimized process parameters exhibited better microstructure and strength properties.

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An investigation on compression strength analysis of commercial aluminium tube to aluminium 2025 tube plate by using TIG welding process

Kannan

Kumaran

Kumaraswamidhas

2016

Journal of Alloys and Compounds

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Thick SS316 materials TIG welding development activities towards advanced fusion reactor vacuum vessel applications

Cited by 4 publications

References 10 publications

Promising Electron-Beam Techniques for Joining Metal Materials in Power Equipment Designs

Promising Electron-Beam Techniques for Joining Metal Materials in Power Equipment Designs

Process parameter optimization of hot-wire TIG welding of 10 mm thick type 316LN stainless steel plates

An investigation on compression strength analysis of commercial aluminium tube to aluminium 2025 tube plate by using TIG welding process

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