This book, the proceedings of International Conference on Metal Material Processes and Manufacturing, is a comprehensive collection of research papers presented at a conference held on September 15-16, 2023 in Jeju Island, South Korea. The book serves as a valuable resource for academics, researchers, and professionals in the field of metal material processes and manufacturing. The book is organized into several chapters, each covering a different topic related to metal material processes and manufacturing. The chapters include: Fundamentals of Metallurgical Processes, Metallurgical Process Optimization, Metal Matrix Composites, Molten Metal Processing and Modeling. Overall, the proceedings of International Conference on Metal Material Processes and Manufacturing provides a comprehensive overview of the current state of research in the field of metal material processes and manufacturing. It is an essential resource for anyone interested in staying up-to-date with the latest developments in this rapidly evolving field.