SIMULATION OF THE TEMPERATURE FIELD DURING SCANNING LASER QUENCHING

Abstract

The kinematics of the heating spot movement during scanning laser hardening is investigated, the sizes of the "spot-gap" zones are theoretically determined for different speeds of the laser head movement. The method of an instantly applied point source (Green's functions) is used to solve the problem of heat conductivity with the corresponding integration of the effect over the area of the heating spot. An algorithm and a computer program for calculating the temperature field, thermal pulses during scanning laser hardening of steels are developed.