Numerical Modeling of Welding Arc with Complex System between Arc Plasma and Molten Electrode

Kentaro Yamamoto; Manabu Tanaka; Tashiro Shinichi; Kazuhiro Nakata; Keiichi Suzuki; Kei Yamazaki

doi:10.4028/www.scientific.net/MSF.580-582.311

Paper Titles

Efficient Diffusion Bonding between BSCCO Superconducting Multifilamentary Tapes
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Experimental Estimation of Strain Rate during FSW of Al-Alloy Using Plane-Strain Compression
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Spatter Reduction of Steel Sheets Welding Using Controlled Bridge Transfer (CBT) GMA Process
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Engineered Weld Design: Are Composite Welds Likely in the Future?
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Numerical Modeling of Welding Arc with Complex System between Arc Plasma and Molten Electrode
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Effect of Joint Configuration Design on the Butt Welding Characteristics of Double Wall PE Pipes
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Predictions of Current Attachment at Thermionic Cathode for TIG Arcs
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Experimental Investigations of Explosive Welding of Three-Layer Cylinder Composites-Part 1
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Numerical Studies of Explosive Welding of Three-Layer Cylinder Composites-Part 2
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HomeMaterials Science ForumMaterials Science Forum Vols. 580-582Numerical Modeling of Welding Arc with Complex...

Numerical Modeling of Welding Arc with Complex System between Arc Plasma and Molten Electrode

Abstract:

It is important to consider the interaction between arc plasma and electrodes because melting of electrodes strongly affects arc plasma. Therefore, a GMA model will be developed, based on the unified model of TIG arc. As a first step, a TIG arc model with a calculation for molten cathode shape has been proposed. This model is calculated in two cases; molten W cathode and Calculation result of W cathode. In the case of W cathode, cathode shape change was found to affect the arc plasma property strongly. Calculated results of radial temperature distributions on electrode surface and arc pressure distributions at the anode surface are very similar to the experimental results.