This book provides an overview and discussion of the current state of friction stir welding (FSW) and friction stir spot welding (FSSW) using interlayer materials to fabricate high-quality joints for specific applications, leading to the optimization of these techniques. It also discusses energy savings achieved by reducing the rotational speed of the FSW tool during material joining. Additionally, the book addresses the reduction of weld defects in the joint region and the improvement of joint efficiency. • Focuses on the use of interlayer materials in friction stir welding and friction stir spot welding • Presents case studies on the effects of using copper and brass interlayer materials during the joining of AA5083 • Reviews the background of solid-state welding techniques • Provides an overview of friction stir welding and friction stir spot welding of similar and dissimilar aluminium alloys • Discusses the reduction of weld defects in the joint region and the improvement of joint efficiencyThis book is intended for researchers and graduate students in materials science, welding, and materials processing.
