스테인리스 409L 버링가공 시 두께변화에 대한 연구

The study on the thickness change in burring with stainless 409L

This study is focused on the thickness change in burring with stainless 409L according to the change of main design variables and forming conditions, to manufacture the automobile exhaust flange. Large plastic deformations by burring process decreases thickness of inner radius and occurs cracks. The optimal design of performs by the finite element analysis achieves adequate improvement of thickness decrease.