자동차 펜더 패널 복동 프레스 금형 구조해석

The simultaneous dies-press structural model of the front fender dies operating in a double action type hydraulic press, which considers the mutual action between die and press, was adopted for the stress analysis of punch, die, blank holder and holder riser. By examining the stress distribution of press/dies varying according to the changes in the thickness and shape of blank holder riser, the shape and size of the riser are optimized and the strength and deformation of the dies are evaluated.