Aluminum alloys Friction Stir Welded

Abstract

Solid-state joining techniques such as Friction Stir Welding (FSW) are a natural choice to produce weld low heat input, limited slight distortion and low microstructural and mechanical degradation. Great effort has currently been devoted to the joining of Al alloys because of their high strength, improved formability, and application in airframe structures. FSW is a continuous, hot shear, autogenous process involving a non-consumable and rotating tool plunged between two abutting workpieces. Compared to conventional arc welding techniques, FSW guarantees high productivity. FSW is a plausible process applied mainly for automotive and aerospace industries, including light weight alloys, specially low melting point materials and dissimilar joints.