국부 레이저 열처리 기술을 적용한 경량 시트 프레임 개발연구

Present and future of automotive parts for cars lighter to improve fuel economy strategy based on the application of the HSS(High-Strength-Steel) is trend that is growing. However, these HSS are difficult to work up into finished goods and it is increased in production cost due to requirement the development of new processes. To solve these problems, The present paper relates to a possibility the light weight seat frame development using local laser annealing. Prior to annealing heat treatment parts clean as possible, and to optimize the heat treatment interval FEA(finite element analysis) was performed. Prototype based on the analysis results, and the effect of heat treatment at progression more clearly look at production and also for the non-heat-treatment products, and various strength tests were carried out based on the possibility of developing a light weight seat frame examined.