Transactions of Materials and Heat Treatment

Title：Forming limit experiment and numerical simulation of 5754-H111

Authors： Liu Zhenyong Li Yaguang Li Dayong

Unit： Shanghai Jiao Tong University

KeyWords： 5754-H111 aluminum alloy forming limit diagram strain path FEM simulation

ClassificationCode：

year,vol(issue):pagenumber：2014,39(1):35-40

Abstract：

In order to adapt to the demand of energy conservation, emission reduction and lightweight, the products of aluminum alloy have been gaining more attention in recent years. By means of experiment and numerical simulation, the formability of 5754-H111 aluminum alloy sheet at room temperature was measured. The forming limit diagram (FLD) was obtained through bulging experiment and test. The limit strain under plane strain condition is 0.174. By the experiments of tensioning, deep drawing, and bulging, the simple forming limit stress diagram (FLSD) of sheet which is more practical was obtained. By using the method of changing strain path and FEM simulation, the predicted value of FLD was obtained. It is proved that the method has a good accuracy on predicting sheet forming limit by comparing the simulated FLD with the experimental one.

Funds：

国家自然科学基金资助项目(51175335);教育部项目(311017)

刘振勇（1986-），男，硕士研究生

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