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首页> 外文会议>2011 6th International Forum on Strategic Technology >Effects of hydraulic pressure loading paths on the forming of automobile panels by hydro-mechanical deep drawing based on numerical simulation
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Effects of hydraulic pressure loading paths on the forming of automobile panels by hydro-mechanical deep drawing based on numerical simulation

机译：基于数值模拟的液压加载路径对液压机械深冲成形汽车面板的影响

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As a part of automobile panel, outer door has a few characteristics, such as complex shape, big structure size and high quality forming needs. As a result, outer door needs multiple process and high costs by conventional drawing. In order to get rid of crack and forming deficiency in the stamping process, the numerical simulations of hydro-mechanical deep drawing (HDD) process was carried out. By using large nonlinear dynamic explicit analytical software ETA/Dynaform5.6, the effects of chamber pressure variations on the formability, and the effects of different loading paths on the wall-thickness distribution of the part were analyzed. The results indicate that under the reasonable chamber pressure loading path, the HDD can effectively control crack and forming deficiency, improve the thickness distribution uniformity, increase the die fittingness and stiffness. Complicated shapes car panel can be formed by one process with high quality.
机译：外门作为汽车面板的一部分，具有形状复杂，结构尺寸大，成型质量高等特点。结果，通过传统的拉拔，外门需要多重处理和高成本。为了消除冲压过程中的裂纹和成形缺陷，进行了液压机械深冲（HDD）过程的数值模拟。通过使用大型非线性动态显式分析软件ETA / Dynaform5.6，分析了腔室压力变化对可成形性的影响，以及不同加载路径对零件壁厚分布的影响。结果表明，在合理的腔室压力加载路径下，HDD可以有效地控制裂纹和成形缺陷，提高厚度分布的均匀性，提高模具的装配性和刚度。复杂形状的汽车面板可以通过一种工艺高质量地形成。

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