SIMULATION OF THERMAL FIELDS AND THERMAL CYCLE DURING PULSED LASER PROCESSING OF METALS AND ALLOYS

Abstract

The article presents a two-dimensional computer model of thermal fields and thermalcycle during pulsed laser heating of the surface of metals and alloys in the COMSOL Multiphysics®software environment. In the calculation model, various heat-exchange boundary conditions andthermophysical properties of the material, which depend on temperature, were used for moreaccurate prediction of the temperature field and thermal cycle. The simulation was carried out by thefinite element method. The developed model makes it possible to predict the heating temperatureof the material at any point in space, as well as to select the modes of laser pulse processing.