Transactions of Materials and Heat Treatment

Title：Deflection deformation phenomenon and its behavior characteristics for large single-action mechanical press

Authors： Shen Hongqing Tong Yaping Tu Xiaowen

Unit： Planning Department SAIC Volkswagen Automotive Co. Ltd.

KeyWords： deflection deformation stamping die press finite element method

ClassificationCode：TG385

year,vol(issue):pagenumber：2018,43(10):145-150

Abstract：

For the problem of deflection deformation phenomenon for large singleaction mechanical press, a test of press deflection deformation was carried out, and the deflection deformation amounts of press bed and slider under various loadings were measured. The test results show that the deflection deformation of the large singleaction mechanical press has a great influence on the die closing status, and the press deflection deformation amount increases linearly with the applied loading. Furthermore, the press deflection deformation is anisotropic, and the deflection deformation amount along the length direction of bed is larger than that along the width direction. In the end, the press deflection deformation model was set up and calculated by the FEM, and the simulation accuracy was confirmed by the experiment data. Based on the simulation results, the deformation characteristics of press bed and slider were analyzed respectively. The analysis results show that the deflection deformation of press bed is funnelshaped, but the deflection deformation of slider is archshaped which is because of structural differences. The more concentrated the loading distribution is, the larger the press deflection deformation is. However, the press deflection deformation caused by the eccentric load is also eccentric. Thus, the research results improve the application of the large singleaction mechanical press and provide the theoretical foundation for the stamping die profile lean design.

Funds：

沈洪庆（1982-），男，工学博士，工程师，E-mail：shenhongqing@csvw.com

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