This book contains research papers that were accepted for presentation at the 18th International Conference on Interdisciplinarity in Engineering-INTER-ENG 2024, which was held on 3-4 October 2024, in the city of Targu Mures, Romania. The general scope of the conference "An effective digital-green transition for a more competitive European industry" is proposing a new approach related to the development of a new generation of smart factories grounded on the manufacturing and assembly process digitalization. It is related to advance manufacturing technology, lean manufacturing, sustainable manufacturing, additive manufacturing, manufacturing tools and equipment. It is a leading international professional and scientific forum of great interest for engineers and scientists who can read in this book research works contributions and recent developments as well as current practices in advanced fields of engineering.