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Adaptive simulations of T-Shape tube hydroforming processes

机译：T形管液压成形过程的自适应模拟

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摘要

A successful THF process depends largely on the loading paths for controlling the relationship between the internal pressure, axial feeding and the counter punch. In this study, an adaptive algorithm combined with a finite element code LS-DYNA 3D is proposed to control the simulation of T-shape hydroforming with a counter punch. The effects of the friction coefficients at the interface between the tube and die on the loading path and thickness distribution of the formed product are discussed. Experiments of protrusion hydroforming are also conducted. The final shape and thickness distribution of the formed product are compared with the simulation results to verify the validity of this modeling.
机译：成功的THF工艺很大程度上取决于用于控制内部压力，轴向进给和反向冲头之间关系的加载路径。在这项研究中，提出了一种自适应算法，结合有限元代码LS-DYNA 3D来控制带有反冲头的T形液压成形的仿真。讨论了管和模具之间的界面处的摩擦系数对成型产品的加载路径和厚度分布的影响。还进行了拉伸液压成形的实验。将成形产品的最终形状和厚度分布与仿真结果进行比较，以验证该建模的有效性。

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