Taguchi Optimization and Flame Hardening Experimental Investigation on Eglin Steel

Abstract Flame hardening was one of the surfaces hardening methods to improve the substance behaviors. It was a rapid and economical method to harden the selected surface of the material. It is suitable for all types of steels, particularly wear resistant steel. The hardening of the material was achieved through heating the material and then followed by quenching process. Eglin steel was one of the wear resistant steel which was considered for the experimental work. After the surface of flame hardening of it, Brinell hardness was found through the input factors such as surface temperature, standoff distance (SOD) and quenching time. The Taguchi optimization was used to analyze the effect of flame hardening factors and it has provided the optimal solutions. The involvement factor was studied through the variance test.