Selecting technological parameters from laser induced phase transformation hardening processes of materials

We solve the heat conduction equation with semi-infinite boundary condition and present a mathematical model to emulate the relationship of the technical parameters ω(beam radius),ν(scanning speed)and P(laser power)of phase transformation processing to depth and width of the hardened region.The comparisons of emulation with tested results show that the average relative errors of width and depth of hardened region are 3.7% and 18.7%,respectively.This results are meaningful for better selection of technical parameter.