Transactions of Materials and Heat Treatment

Title：Forming of aluminum alloy inner panel of engine hood based on hydroforming technology

Authors： Zhou Jingjing He Cheng Wang Yao She Wei

Unit： Anhui Jianghuai Automobile Group Corp. Ltd. Beihang University

KeyWords： hydroforming technology drawing ETA/Dynaform aluminum alloy engine hood inner panel

ClassificationCode：TG394

year,vol(issue):pagenumber：2017,42(2):52-55

Abstract：

Based on the finite element analysis software ETA/Dynaform, the hydro-mechanical deep drawing process of engine hood inner panel was numerically simulated, and the finite element model was established. Then, the optimal cavity pressure loading path was obtained, and formability of the part was studied accordingly. The research results show that the cavity pressure and loading path have great effect on the quality of the part, and the needed maximum cavity pressure is 10 MPa without loading too early. Meanwhile, the defects of crack and wrinkle of the part in the forming process are eliminated to improve the formability. Finally, the simulation results are in good agreement with the experimental results, and the qualified parts are obtained from both simulation and experiment results.

Funds：

国家科技重大专项（2014ZX04002041）

周晶晶（1988-），女，学士，助理工程师何成（1988-），男，学士，工程师

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