Transactions of Materials and Heat Treatment

Title：Simulation analysis on the hot stamping of groove parts with curved bottom based on ABAQUS

Authors： Liu Shuo Li Xiaoping Peng Chengyun Ni Chaomin

Unit： Chongqing University of Technology

KeyWords： hot stamping temperature field numerical simulation ABAQUS

ClassificationCode：TG302；TH142

year,vol(issue):pagenumber：2015,40(5):74-79

Abstract：

In the hot stamping process of ultra high-strength sheet metal, it is critical to predict the temperature field of the sheet metal and the stress of the die accurately for the optimization of the die and the design of the process. Based on the simulation software ABAQUS, the thermo-mechanical coupled elastic-plastic FEM model was established to simulate the hot stamping process, and the analysis on the temperature field of sheet metal, die and its stress were analyzed. Research results show that the time spent in sheet transferring should be controlled within 10 s. In the forming process, the temperature distribution on the flange and the wall of the part is uniform and equal, and the temperature is lower than the bottom temperature of the part. In order to ensure the die strength, the diameter and density of cooling waterway at fillets and bottoms of both the punch and the die entrance should be small, and the distance between waterway and the bottom should be increased accordingly.

Funds：

国家自然科学基金资助项目（51375521）；重庆市应用研发计划资助项目（cstc2013yykfA70001)

刘硕（1990-），男，硕士研究生李小平（1968-），男，博士，副教授

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