The Study of Hole Flanging Process of Advanced High Strength Steel

Abstract

In the hole flanging process, predetermine hole in the sheet is enlarged by using the larger punch radius for forming the flange. This process is widely used in the various industries. In this study, the hole flanging process in a circular sheet of advanced high strength steel is carried out using elasto-plastic finite element numerical simulation. The lip shape behavior and punch load variation in hole flanging process is studied considering various geometrical parameters such as thickness of the sheet, punch & die gap and center hole diameter. The results of simulations are compared with published experimental results, which show a considerable agreement.

Keywords: Hole flanging process, lip shape behavior, punch load, numerical simulation