Transactions of Materials and Heat Treatment

Title：Research on influencing factors of springback during sheet metal stamping of high strength steel

Authors： LUO Yun-hua WANG Lei(State Key Laboratory of Material Processing and Die and Mould Technology Huazhong University of Science and Technology Wuhan 430074 China)

Unit：

KeyWords： high stress steel springback numerical simulation Dynaform

ClassificationCode：TG386

year,vol(issue):pagenumber：2009,34(1):23-26

Abstract：

Based on ISO-CD24213/2006 method,taking the angle as springback value,the forming and springback processes during stamping of high stress steel were simulated respectively using the commercial FE software Dynaform.The influencing factors,such as sheet thickness,sheet width,blank holder force,draw bead and material properties were investigated,and the influence laws were obtained.The conclusions show that the springback angle will decrease with the increase of sheet thickness under a small blank holder force,while it will increase at first then decrease with the increase of blank holder force under a large blank holder force.Besides,it will decrease with the decrease of sheet width,draw beads arranged reasonably and materials of small yield strength.

Funds：

湖北省自然科学基金资助项目(2004ABA052)

Reference：

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