Friction stir welding has seen significant growth in both technology implementation and scientific exploration. This book covers all aspects of friction stir welding and processing, from fundamentals to design and applications. It also includes an update on the current research issues in the field of friction stir welding, and a guide for further research. A collection of papers from the 2007 TMS Annual Meeting & Exhibition held in Orlando, Florida, February 25 - March 1, 2007.