A Study on Characteristics of Hydro-forming Process for Aluminum Bumper Beam using FE Analysis
Recently,the use of Hydro-forming has been increasing to lighten the parts of vehicles.It replaces the conventional bumper beam with a light-weight 30%compared to conventional products having the same stiffness.Also the Hydro-forming process can be applied to various shapes of pipes and tubes such as a sub-frame,an exhaust manifold and the like as a method of producing precision parts in place of a general press process in the production of automobile parts.But,Hydro-forming process have complex parameters to obtain the target geometry and small residual stress.The parametric studies using FEA have been performed to suggest optimized process conditions.Through these numerical approaches,Internal/holding pressure and feeder forward stroke along the extruded direction are optimized for small residual stress and minimizing spring-back.The experimental observation by using 3D laser scanner is also performed to verify the numerical results.Numerical results and experimental results are compared in spring-back quantity.It is confirmed that they show a similartendency.
Hydro-forming Aluminum bumper beam Forming Parameter FE Analysis
Wonsik Son Jihoon Lee Seungmo Kim
School of Mechanical Engineering,Korea University of Technology and Education,31253 Republic of Korea
国际会议
第十七届国际制造会议(The 17th International Manufacturing Conference in China)(IMCC 2017))
深圳
英文
1-11
2017-11-23（万方平台首次上网日期，不代表论文的发表时间）