Science Characterization and Technology of Joining and Welding

As the Guest Editor of this Special Issue entitled Science Characterization and Technology of Joining and Welding of Metals I am pleased to have this book published by MDPI. Joining including welding soldering brazing and assembly is an essential requirement in manufacturing processes and is classified as a secondary manufacturing process. This Special Issue of Metals includes technical and review papers on but not limited to different aspects of joining and welding including welding technologies (i.e. fusion-based welding and solid-state welding) characterization metallurgy and materials science quality control and design and numerical simulation. This Special Issue also includes the joining of different materials including metal and non-metals (polymers and composites) including 17 peer-reviewed papers from several researchers all around the globe (China Germany Brazil South Koria Slovakia USA Taiwan Canada and India). As of this date (April 2020) the papers in this Special Issue have been cited 47 times by other researchers which I think is an eminent number and shows the high quality of the published papers in this Issue. This Special Issue includes a large diversity of various subjects in the field of joining: laser welding friction stir welding diffusion bonding multipass welding rotary friction-welding friction bit joining adhesive bonding weldbonding simulation and experimentation metal/FRP joints welding simulation plasma-TIG coupled arc welding liquation cracking soldering resin bonding microstructural characteristics brazing and friction stir butt and scarf welding. I would like to sincerely thank all the researchers who contributed to this Special Issue for their high-quality research. I also would like to acknowledge Mr. Toliver Guo Senior Assistant Editor at MDPI who continuously and tirelessly contributed toward this Special Issue by assisting me with inviting the authors and the follow ups. I think this Special Issue will enhance our knowledge and understanding in the field of joining and assembly. I would like to dedicate this book to my wife Mehrnoosh for her continued support and encouragement.