The Effect of Rotational Speed in Weldability of Friction Stir Welded Copper C10200 Using Conventional Milling Machine

Abstract

AbstractCopper can be joint by various fusion welding process such as ultrasonic welding, cold pressure welding, braze welding, arc welding, electron beam welding, etc. Unfortunately, welding of copper by fusion welding process is difficult due to high thermal conductivity and high expansion coefficient of copper. Friction stir welding (FSW), a solid state welding techniques seen to be a realistic alternative which can overcome these shortcomings. In this work, the effect of rotational speed in weldability of frictional welded copper C10200 using conventional milling machine is investigated. The results show that the weldability of copper is improved as the rotational speed increases. On the other hand, the surface roughness on the welded zone is decreased as the rotational speed increases. The optimized welding strength and surface roughness was obtained at the rotational speed of 1790 rpm. The studied shows promising results in welded copper C10200 with high welding strength and smooth surface finish by FSW process using conventional milling machine.KeywordsFriction stir weldingWeldabilityRotational speedWelding strengthSurface roughness