Dissimilar Friction Stir Welding of AA2519 and AA5182

Abstract

In this study, the friction-stir welding (FSW) technique was successfully applied for joining of AA2519 to AA5181 alloy. Microstructure and mechanical properties of dissimilar FSW joints were investigated by optical microscopy, microhardness, and tensile testing. The deformation behaviour of the welded joints was elucidated via the digital image correlation technique. After welding, the ultimate tensile strength of joints was ~300 MPa and ductility was ~16%. The microhardness values observed at the stir zone were higher than those in the base material AA5182. The produced welds demonstrate nearly 100% (based on AA5182) joint efficiency.

Effect of Process Parameters on Friction Stir Welded Joints between Dissimilar Aluminum Alloys: A Review

“…These optimal parameters are obtained by utilizing a threaded tool pin profile. Zuiko et al [145] investigate two combinations of rotational and welding speed (500 rpm/380 mm/min and 1000 rpm/760 mm/min) on the AA5182/AA2519 joint placing the two sheets on the retreating side and advancing side, respectively. The welding tool consists of a shoulder of 12.5 mm in diameter and a cylindrical pin of 2.7 mm in length.…”

Studies on the Quality of Joints and Phenomena Therein for Welded Automotive Components Made of Aluminum Alloy—A Review

“…Zuiko et al [392] studied the FSW joints between 5182/2519 alloys placed on the RS and the AS, obtained under two combinations of TRS and WS (500 rpm/380 mm/min and 1000 rpm/760 mm/min) using a tool with a shoulder of 12.5 mm in diameter and a M5 cylindrical pin of 2.7 mm in length. Both combinations allowed for obtaining defect-free joints.…”