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The International Journal of Advanced Manufacturing Technology

Erschienen in:

10.02.2020 | ORIGINAL ARTICLE

Numerical analysis of arc physical properties in narrow gap TIG welding

verfasst von: Xiaoyu Cai, Bolun Dong, Sanbao Lin, Chenglei Fan, Chunli Yang

Erschienen in: The International Journal of Advanced Manufacturing Technology | Ausgabe 11-12/2020

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Abstract

The arc physical properties of the plate-butt welding and narrow gap welding were simulated. The narrow gap groove affects the arc properties, and the narrow gap welding arc has its special properties. The shielding gas flows along the longitudinal direction in the narrow gap groove, and the arc temperature field constricts transversely but expands longitudinally. The high-temperature region expands and the welding heat efficiency increases. The current density is larger for narrow gap welding, which induces the larger Lorentz force to accelerate the plasma flow. The axial and radial plasma flow velocities are both larger for narrow gap welding, which leads to the larger arc pressure and shear stress. The results have good agreements with the experiments results.

Vorheriger Artikel Electropermanent magnet blank holder technique in sheet metal deep drawing

Nächster Artikel Effects of different tool microstructures on the precision turning of titanium alloy TC21

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Titel: Numerical analysis of arc physical properties in narrow gap TIG welding
verfasst von: Xiaoyu Cai
Bolun Dong
Sanbao Lin
Chenglei Fan
Chunli Yang
Publikationsdatum: 10.02.2020
Verlag: Springer London
Erschienen in: The International Journal of Advanced Manufacturing Technology / Ausgabe 11-12/2020
Print ISSN: 0268-3768
Elektronische ISSN: 1433-3015
DOI: https://doi.org/10.1007/s00170-020-05024-3

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