This book offers a timely snapshot of innovative research and developments at the interface between engineering design, manufacturing and quality assurance. It covers various manufacturing processes, such as grinding, turning, drilling, milling. It highlights advances in additive manufacturing, surface hardening, and plasma electrolytic oxidation, as well as topics in diagnostics, maintenance, and assembly. It also focuses on optimization methods, mathematical modeling, and computer and numerical simulation for mechanical systems and manufacturing processes. In turn, chapters investigate the thermal parameters, mechanism of transition zone formation, corrosion resistance, and coating porosity of materials and alloys. Gathering the best papers presented at the 7th Grabchenko’s International Conference on Advanced Manufacturing Processes (InterPartner-2025), held in Kielce, Poland, on September 23–26, 2025, this book provides a comprehensive report on trends in engineering design, manufacturing and materials engineering, covering quality assurance topics and smart technologies, alike. It also aims to foster international and interdisciplinary communication and cooperation, offering a bridge between the academic and industrial sectors.