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Research on the Process of Flexible Blank-holder in Multipoint Forming for Box-shaped Parts

机译:用于箱形零件多点成型柔性空白夹持器的研究

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摘要

A new forming method using flexible blank holder with multi-point which can restrain wrinkles was discussed. Better forming results were obtained by changing the number of layers of blank holder. The wrinkling phenomenon of sheet metal parts in the course of multi-point forming is studied by finite element numerical simulation. The distribution of stress and strain and sheet thinning of the formed parts in the course of the non blank holder and flexible blank holder were analyzed. It proved that the flexible blank holder with multi-point forming method can effectively restrain the wrinkle of the sheet. In order to verify the feasibility of the new forming method using flexible blank holder with multi-point, series of relevant forming experiments were carried out by multi-point forming equipment.
机译:讨论了一种具有可以抑制皱纹的多点柔性空白夹持器的新成形方法。通过改变空白夹持层的数量来获得更好的形成结果。通过有限元数值模拟研究了多点形成过程中金属板零件的皱纹现象。分析了在非坯料支架和柔性坯料支架过程中形成的应力和应变和片材稀疏的分布。事实证明,具有多点成形方法的柔性空白支架可以有效地抑制片材的皱纹。为了验证使用具有多点的柔性空白支架的新成形方法的可行性,通过多点成型设备进行系列相关的形成实验。

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