A thermal coupling methodology of an arc-plasma and weld pool, a TIG welding model
Abstract
A focus on a novel conjugate heat transfer method used to couple the arc-plasma and
workpiece (weld pool included) domains in a unified Tungsten Inert Gas welding model
is presented in this paper. The method uses a non-associated relation to implement an
asymmetric thermal constraint when coupling the arc and workpiece domains. The
method is shown to be conservative and robust. The algorithm is used in a unified 3D
TIG welding model with displacement effects. The promising simulation results are
compared to experimental work from the literature.
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