This compilation includes the papers selected from two notable conferences: the 12th Asia Conference on Mechanical and Materials Engineering (ACMME 2024) and the 7th International Conference on Frontiers of Composite Materials (ICFCM 2024). Both conferences were held in 2024: ACMME 2024 took place in Kyoto, Japan (June 14-17), while ICFCM 2024 was hosted in Singapore (June 14-16). The presented here research results and engineering solutions will be helpful to specialists in materials and materials processing techniques from various branches of manufacturing.