Transactions of Materials and Heat Treatment

Title：Kinematics and modal characteristics of APE400 integral frame closed double-point press

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ClassificationCode：TG315.5

year,vol(issue):pagenumber：2025,50(8):209-215

Abstract：

For APE400 integral frame closed double-point press, the kinematics and dynamics models of the whole press were established by ANSYS Workbench, and the running speed and acceleration characteristics of the stamping mechanism at different crankshaft rotate speeds were investigated. Then, considering the influence of slider mass and crankshaft rotate speed, the unbalanced force and motion characteristics of the stamping mechanism under the full-flexible model and the rigid/flexible coupling model of press were analyzed. Finally, considering the constraint influence of the frame base with or without anchor bolts, the modal characteristics of the whole press running in different mechanism positions were analyzed. The results show that in the dynamic analysis of the whole press model, the full-flexible model is closer to the actual operation conditions than the rigid/flexible coupling model. In the rigid/flexible model, the bearing forces on the front and rear sides are equal, and the maximum bearing force is 11759 N. In the full-flexible model, the bearing force on the front side is increased by 41%-48% compared with that of the rear side, and the maximum bearing force is 9418 N. The first-order natural frequency of the press is approximately 24 Hz, which is much higher its rated operating frequency of 6 Hz, indicating that there is significant room for weight reduction and optimization of this press structure.

Funds：

宁波市重点研发计划暨“揭榜挂帅”项目（2022Z035）

作者简介：颜健（1988-），男，博士，副教授 E-mail：yanjian1988@hnust.edu.cn

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