Modelling of laser pulse heating of metallic substrates reduces the experimental cost and optimizes the laser heating parameters. In the present study, exponentially time-varying laser pulse heating with convective boundary conditions at the surface is considered. The closed-form solution for temperature distribution at the surface is presented. The effects of the heat transfer coefficient (h∗) and pulse parameter (β∗) on the time corresponding to the maximum surface temperature (t∗Tmax is significant for h∗≥0.02. Moreover, reducing the pulse parameter lowers t∗Tmax.
SimonG.GrotzkeU.KrossJ.Analysis of heat conduction in deep penetration welding with a time-modulated laser beam. J. Phys. D: Appl. Phys., 1993, 26, 862–869.
2.
NetoDiniz D.LimaC.Non-linear three-dimensional temperature profiles in pulsed laser heated solids. J. Phys. D: Appl. Phys., 1994, 27, 1795–1804.
3.
YilbasB. S.Analytical solution for time unsteady laser pulse heating of semi-infinite solid. Int. J. Mech. Sci., 1997, 39(6), 671–682.
4.
YilbasB. S.ShujaS. Z.BudairM. O.Nano-second pulse heating and gas assisting jet considerations. Int. J. Mach. Tools Mf, 2000, 40, 1023–1038.
5.
ShujaS. Z.YilbasB. S.The influence of gas jet velocity in laser heating—a moving workpiece case. Proc. Instn Mech. Engrs, Part C, Journal of Mechanical Engineering Science, 2000, 214(C8), 1059–1078.
6.
BlackwellF. J.Temperature profile in semi-infinite body with exponential source and convective boundary conditions. Trans. ASME, J. Heat Transfer, 1990, 112, 567–571.
7.
DanismanK.YilbasB. S.AltunerM.CiftlikliC.Optimization of affecting parameters in relation to pulsed CO2 laser design. In Proceedings of SPIE, Gas and Metal Vapor Lasers and Applications, Vol. 1412, Los Angeles, California, 20–25 January 1991.
8.
YilbasB. S.KalyonM.Laser repetitive pulse heating with convective boundary condition at the surface. J. Phys. D: Appl. Phys., 2001, 34, 222–231.
