This book offers a comprehensive examination of the latest advancements in mechanical manufacturing technology and material engineering, as presented at the 9th International Conference on Mechanical Manufacturing Technology and Material Engineering (MMTME 2024). It delves into the forefront of research in areas like intelligent manufacturing process and structure optimization, intelligent mechanical design and simulation analysis. The book is structured to highlight significant innovations that are poised to redefine manufacturing processes, enhance material performance, and drive sustainability in production. Each chapter provides in-depth analysis of emerging technologies and their practical applications, backed by recent case studies and expert insights. Key topics such as the integration of AI and IoT in manufacturing, advancements in 3D and 4D printing technologies, and the development of new sustainable materials are explored. These are critical for pushing the boundaries of what is possible in manufacturing and materials science today. This book is significant as it not only encapsulates state-of-the-art research but also provides a vision for future directions in the field. It sets out to solve problems related to efficiency, cost-effectiveness, and environmental impact in manufacturing, offering new perspectives and solutions to researchers and professionals. The target audience includes academic researchers, industry professionals, and engineers in the fields of mechanical manufacturing and material engineering.