Transactions of Materials and Heat Treatment

Title：Design and application about partition of feasible formability diagram in sheet stamping

Authors： YAN Gai ZHENG Yan-ping HE Zhen-gang WU Jun ZHU Qi

Unit： Nanjing Forestry University Shanghai Tractor & Internal Combustion Engine Co. Ltd.

KeyWords： sheet forming orthogonal experiment finite element simulation neural network feasible formability diagram

ClassificationCode：TG386；TP391.9

year,vol(issue):pagenumber：2013,38(4):40-44

Abstract：

Based on the forming limit diagram (FLD), feasible formability in sheet stamping was researched. The feasible formability diagram was obtained by using orthogonal experiment, finite element simulation and BP Neural Network, which reflected the forming quality clearly through wrinkle area, safety area and fracture area. For an automotive reinforced back panel, the stamping tests were relatively made with process parameters corresponding to different points in the feasible formability diagram. The results between the test and the feasible formability diagram match well. The applied example shows that this method is simple and convenient, which can provide reference for stamping process parameters adjustment fast and efficient.

Funds：

南京林业大学与上海拖拉机内燃机有限公司合作项目

闫盖（1985-），男，硕士研究生

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