Numerical modelling of thermal quantities for improving remote laser welding process capability space with consideration to beam oscillation

Abstract This research aims to explore the impact of welding process parameters and beam oscillation on weld thermal cycle during laser welding. A three-dimensional heat transfer model is developed simulate process, based finite element method. The results obtained from pertaining morphology are in good agreement with experimental found literature. can quantify effect (i.e. source power, speed, radius oscillation, frequecy oscillation) intermediate performance indicators (IPIs) peak temperature, heat-affected zone (HAZ) volume, cooling rate). Parametric contour maps for HAZ rate estimation capability space. An integrated approach rapid assessment, space refinement, IPIs proposed. will guide identification initial window helps reducing number experiments required by refining interactions IPIs. Among IPIs, temperature indicates mode while volume represent quality. regression relationship between established quick replace time-consuming numerical simulations. application widens space, making parameter selection more flexible due increase distance tolerance boundaries.