Simulation Study on Laser Damage of Iron Plate

Abstract

Abstract Studying laser damage effects are of great significance in the field of industrial production. In order to evaluate the damage effect of laser on iron, the process of pulsed laser and continuous laser irradiate an iron plate was simulated by using COMSOL. The relationship between temperature and surface energy absorptivity of iron plate was discussed. The initial simulation parameters were set as follows: the pulsed laser wavelength is 1064nm, the pulse width is 10ns, the pulse energy is changed from 2mJ to 8mJ, and the average power of continuous laser is 225mW. The simulation results show that pulsed laser can rise the surface temperature of iron plate very quickly, and improve surface energy absorptivity of the plate. Thus using pulsed laser to radiate an iron plate before using continuous laser can improve damage efficiency of continuous laser on an iron plate.