Abstract
A general-purpose three-dimensional thermohydraulics computational science numerical simulation code SPLICE was applied to laser welding processes for different kinds of materials to understand the phenomenological welding and solidifying mechanisms of both the materials. The SPLICE code was developed at JAEA (Japan Atomic Energy Agency) and designed to deal with gas-liquid-solid consolidated incompressible viscous flows with a phase change process in various laser applications, such as welding, piercing, drilling, cutting, etc. The solves mass, momentum and energy conservation equations simultaneously in finite different form to evaluate various complex phenomena, such as a laser light-material interaction, liquid metal thermohydraulics in welded pond with a mushy zone, residual stress characteristics in welding processes, etc. The result obtained from the numerical simulation of the laser welding process for different kinds of materials is very encouraging in the sense that the SPLICE code would be used as one of the efficient tools for the evaluation of thermohydrulic phenomena in the welded pond.
