This book provides comprehensive insights into the field of welding engineering. As a branch of engineering, welding engineering deals with the study and practice of welding, cutting and brazing. The applications of this field are spread across various areas like, ship building, aerospace, nuclear power and mining, etc. It encompasses the elements of mathematics, chemistry, physics, physical metallurgy, thermodynamics, engineer mechanics, etc. This book elucidates the concepts and innovative models around prospective developments with respect to this discipline. It provides readers with diverse topics, which address the varied branches and applications of welding engineering. It aims to serve as a resource guide for readers and contribute to the growth of this area. Through this book, we attempt to further enlighten engineers, welders, scientists, builders, practitioners and students about the new techniques in this field.