The Study on Process and Optimal Design for Development of Next Generation Integrated Restraint Seat for Automobile (The Design of Lightweight Seat Frame made by the Hydroforming Process)

자동차용 차세대 통합형시트 개발을 위한 공정 및 최적화설계 기법 연구 (하이드로포밍 공법을 이용한 경량 시트프레임 설계)

The hydroforming process is rapidly gaining popularity in the sheet metal forming industry. In this study, hydroforming process is applied to the seat back frame. The load-deformation characteristics of seat frame are simulated according to the test requirements by FMVSS. Structural analyses were performed with an analysis package program named I-DEAS for the conventional and the hydroforming seat back frame. The seat back frame made by hydroforming is not only about 23 percent lightweight, but also about 20 percent high strength compared with conventional that.