Development of a Three-Dimensional Finite Element Program for Metal Forming and its Application to Precision Coining

소성가공 공정설계용 3차원 유한요소 프로그램의 개발 및 정밀코이닝 공정설계

Process design is one of the most important fields in metal forming, where the finite element method has appeared a useful method for industrial applications. In this study, a program using the rigid plastic finite element has been developed for process design in three-dimensional plastic deformation. The surface integration for calculation of the friction between die and workpiece has been implemented with care in numerical treatment. The developed program is applied to a precision coining process of electronic components. It is confirmed that the program developed here is suitable for process design in metal forming with three-dimensional plastic deformation.