Mathematical Modelling of Molten Pool in Arc Welding

A mathematical model of arc weld pool has been discussed in this paper. In the model analysis, the heat flow in welding is numerically analyzed to estimate the molten pool size, and a surface tensional balance equation for the molten pool is solved numerically to obtain a weld geometry. The model of finite difference, developed in the present work, make it possible to simulate some typical processes such as a thin plate arc welding and a fillet welding of thick plate.