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Investigation of the influence of low cycle bending on the properties of thin sheets

机译:低周弯曲对薄板性能影响的研究

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摘要

Low cycle, alternating bending is a common type of forming during the manufacture and processing of thin sheets. This forming occurs during the rolling-up into and rolling-out from coils, whilst passing through rolling equipment during the etching process, washing, coating, straightening, bending and deep drawing. Investigations of the mechanical properties, the microstructure and texture of sheets made of the magnesium alloy AZ31, technically pure aluminium and low carbon steels were carried out following cyclic bending on a 3-roller bending machine and on an 11-roller straightening machine. A significant influence of this type of forming on the sheet's properties was established, in particular for materials possessing hep crystal lattice structures. Pronounced anisotropic properties were observed in the latter material which can be explained by the effect of texture softening. This can be attributed to the activation of twin formation mechanisms in the bending direction.
机译:低周期交替弯曲是薄板制造和加工过程中的一种常见成型方法。这种形成发生在将卷材卷成卷和从中卷出时,同时在蚀刻过程,清洗,涂覆,矫直,弯曲和深冲中通过轧制设备。在3辊弯曲机和11辊矫直机上循环弯曲后,对由镁合金AZ31,技术纯铝和低碳钢制成的板材的机械性能,显微组织和织构进行了研究。确定了这种类型的成型对片材性能的重大影响,特别是对于具有庚晶格结构的材料。在后一种材料中观察到明显的各向异性,这可以用质地软化的作用来解释。这可以归因于在弯曲方向上孪晶形成机制的激活。

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  • 来源
    《Aluminium》 |2011年第8期|p.62-64|共3页
  • 作者单位

    Institute for Materials Science, Leibniz-University, Garbsen, Deutschland,;

    Institute for Materials Science, Leibniz-University, Garbsen, Deutschland,;

    Institute for Materials Science, Leibniz-University, Garbsen, Deutschland,;

    National Metallurgical Academy of the Ukraine, 3> Odessa University, Ukraine;

    Institute for Materials Science, Leibniz-University, Garbsen, Deutschland,;

    Institute for Materials Science, Leibniz-University, Garbsen, Deutschland,;

    Institute for Materials Science, Leibniz-University, Garbsen, Deutschland,;

    Institute for Materials Science, Leibniz-University, Garbsen, Deutschland,;

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