Laser cutting process one of the most important operations used to cut the materials due to its several advantages like a good quality end product and small affected heat zone. This paper presented a numerical study and analysis for a plate made of steel alloy and aluminum alloy. In order to compare the behavior of the two materials under laser cutting process, many parameters were obtained like max. Temperature, heat flux, max. Stress according von-mises theory, shear stress and total deformation under different three laser powers (100, 200, 300) watt. It was found that by increasing the laser power, the temperature, stress and heat flux increased for the two plates.

Laser Cutting Process, ANSYS 15, Steel Alloy, Aluminum Alloy, Stress, Total Deformation.