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- W2206971442 abstract "Twin-wire welding is a metal joining process that uses two electrodes to generate localized heat atthe weld joint. Due to the effect of magnetic arc blow, both of the arcs direct towards each other andsubsequently act as a single heat source. This heat source is basically a double-ellipsoidal movingheat source that follows Gaussian distribution. It causes melting of the specimen and formation ofweld-pool. Numerical simulation of this entire phenomenon is a classical problem based on Gaussiandistributed double-ellipsoidal moving heat source with fluid flow driven by Electro Magnetic Force(EMF), buoyancy, surface tension, marangoni stress and gravity.Three-dimensional physical model of the specimen is modeled using ANSYS-WORKBENCHenvironment. This model is imported into commercial Computational Fluid Dynamics (CFD) solverANSYS-FLUENT 12.0.1, which is based on Finite Volume Method (FVM) of discretization to solvethe governing equations, initial and boundary conditions.The present work aims at developing the heat and fluid flow model for twin-wire welding processover the previous work based on steady state heat conduction alone. It investigates the effectivenessof previous model and suggests suitable modification in flux compensation factor that accounts forcooling time. This work correlates the process parameters like wire- diameter, current and polaritywith temperature distribution of the specimen, velocity of the flow in the weld pool and cooling timeof the specimen." @default.
- W2206971442 created "2016-06-24" @default.
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- W2206971442 date "2011-01-01" @default.
- W2206971442 modified "2023-09-23" @default.
- W2206971442 title "Heat and Fluid Flow Modeling in Twin-Wire Welding" @default.
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