Study on effect of parameters on friction stir welding process of 6061 aluminum alloy tubes

Abstract

This paper presents the experimental results on friction stir welding (FSW) with 6061 aluminum alloy cylinder. This operation is implemented on a universal milling machine with specialized holder and the stepless spindle speed which can be adjusted by using frequency converter. Two pieces of aluminum tube with the same dimensions (ɸ100mm×5mm×40mm) are facing machined and located in mandrel by screw clamp in order to be concentric and stable. The mandrel is installed on a continuously variable transmission with various speeds. The model was designed to find out the best value of each technical parameters such as tool speed, traverse speed, welding shoulder radius. This paper also presents the effect of technical parameters to the tensile strength, normal force and the welding force of FSW.