Transactions of Materials and Heat Treatment

Title：Optimization on stamping process parameters for aluminum hood based on response surface method

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ClassificationCode：TP319.56

year,vol(issue):pagenumber：2020,45(11):73-81

Abstract：

For aluminum hood of car body cover, it was expounded how to optimize the forming process parameters of parts by the forming process optimization method based on analysis software Autoform and formability evaluation function. Compared with the forming performance of steel plate, the local stamping performance of aluminum alloy plate is poor which is prone to crack. Meanwhile, the aluminum alloy sprinkback is larger and difficult to control, and the dimensional accuracy of plate is not easy to guarantee. The stamping process parameters of aluminum hood were analyzed by establishing response surface model. Then, the multi-objective optimization parameters were solved by genetic algorithm, and the optimal process parameter combination was obtained with the drawbead resistance coefficients of X1=0.95, X2=0.38, X3=0.48, X4=0.48, and the blank holder force of X5=556 kN. The actual results show that the maximum thinning rate and the maximum springback amount of aluminum hood are effectively controlled to shorten the debugging period of parts and reduce the development cost of enterprise.

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谈顺强（1980-），男，硕士，工程师 E-mail：tanshunqiang@126.com

Reference：

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