Simulations of weld pool dynamics in V-groove GTA and GMA welding

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Many simulation models use an axisymmetric arc model for heat flux, arc pressure, and electromagnetic force. In V-groove welding, however, an elliptically symmetric arc model is more acceptable than an axisymmetric model. An elliptically symmetric arc model can be established by applying the Abel inversion method to CCD images of welding arc on V-groove. This study uses an elliptically symmetric arc model for CFD based simulations of fluid flow behavior in weld pool of GMA V-groove welding. It recommends a new method of calculating the electromagnetic force distribution in V-groove welding. A volume of fluid method is used to describe the molten pool flow in numerical simulations.
Publisher
SPRINGER HEIDELBERG
Issue Date
2013-03
Language
English
Article Type
Article
Keywords

HEAT

Citation

WELDING IN THE WORLD, v.57, no.2, pp.223 - 233

ISSN
0043-2288
DOI
10.1007/s40194-012-0017-z
URI
http://hdl.handle.net/10203/174164
Appears in Collection
ME-Journal Papers(저널논문)
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