Proceedings of the 6th International Conference, 15-19 April 2002, Pine Mountain, Georgia. Includes over 150 papers covering a broad range of topics related to advances in welding technology. The coverage in this volume presents an integrated approach to welding disciplines that combines science with practical aspects. The goal of the conference - and these proceedings - is to develop a complete, integrated understanding of the welding process. Includes over 20 papers on recent advances in friction stir welding. Contents include: Welding of stainless steels; Heat transfer, fluid flow, and mass transfer; Phase transformations and microstructural characterization; Developments in welding processes and procedures; Friction stir welding; Other friction welding processes; Gas metal arc welding; Gas tungsten arc welding; Hybrid welding processes; Properties of weldments; Residual stresses and distortion in weldments; Sensing, control and robotics; Perspectives in welding research.