An efficient model for the TIG‐dressing process numerical simulation

TIG-dressing is a post-welding operation consisting in the remelting of the weld toe region aimed to promote a reduction of the stress concentration effect in that zone by an induced smoother transition between the plate and the weld crown. Furthermore, a residual stress redistribution is expected that contributes to enhance the fatigue strength of the welded joint. Unfortunately, these effects are very difficult to be quantified by numerical simulation since a highly coupled thermo-fluid-mechanical analysis is required. In this scenario, a simplified numerical model of the TIG-dressing process is proposed that overcomes the necessity to use a coupled thermo-fluid-mechanical analysis.