Science, Technology and Applications of Metal in Additive Manufacturing is designed to provide a holistic picture of metal Additive Manufacturing (AM) that encompasses the science, technology and applications for real life use of metal AM. Additive Manufacturing is a disruptive technology that can potentially change the landscape of the current manufacturing ecosystem. Metal AM in particular has the potential to revolutionize the industrial manufacturing world by producing parts directly from CAD data without the need of a mold or a die. Its ability of tool-less manufacturing not only reduces manufacturing cost, but drastically reduces the time cycle from design to market a new product. This book provides a perspective of Metal AM in AM technology, science of the process for a better understanding of the material behaviour, design aspects, various metal AM technologies that are commercially available, focusing on their merits and demerits, implications for qualification and certification, applications, cost modelling of AM and future directions. This book serves as an educational guide to the people that are entering this exciting new field of metal AM, while also being a useful tool for the experts at the same time. In all, this book is designed to provide a holistic picture of metal AM that encompasses science, technology and applications for real life use of metal AM. Includes an overall understanding of metal additive manufacturing, Including steps involved (process flow) Discusses available commercial metal AM technologies and their relative strengths and weaknesses Reviews the process of qualification of AM parts, various applications, cost modeling, and the future directions of metal AM.