아이어닝을 위한 마찰처리 수식모델 개발

D e velopm ent of N um erical fre a tm e n t of Friction M odel for Ironing

To carry out perfectly the forming analysis of the ironing products, it is necessary that the friction boundary condition between dies and blanks should be established for the accuate numerical friction models. The numerical friction models adapted in the conventional plate forming software, however, is different from the actual ones. Especially, the existing software for forming can be used only in the limited range for the case of high speed forming work. Therefore, in this study, the numerical inction model which describes the friction boundary condition is developed in order to improve the accuracy of the plate forming analysis. And to expand the applying areas of the results.