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A Proposal for Bending Process of TRIP Steel Sheets Based on the Springback Behavior

机译：基于回弹行为的跳闸钢板弯曲过程的提案

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TRIP steels, or Transformed Induced Plasticity steels, have excellent mechanical properties if compared with conventional steels. The highlighted characteristic of these steels is that they modify the microstructure with the deformation process as part of the austenite transforms to martensite, with the consequent change of the material properties. One of the main problems of TRIP steels is strong elastic recovery, or springback, after forming. In this work, the springback phenomenon is evaluated by bending tests and the influence of the variables involved in it is determined. Experimental bending forces do not agree with theoretical predictions that are proposed in the literature. In spite of the bending radius having been considered an influence factor in the process, this work demonstrates that the aforementioned factor has a minor influence, at least for TRIP 800. The factor found to affect material recovery the most was the bending angle.
机译：与常规钢相比，跳闸钢或转化的诱导可塑性钢具有优异的机械性能。这些钢的突出显示的特征在于它们用变形过程改变微观结构，作为奥氏体转化为马氏体的一部分，随后的材料特性变化。跳闸钢的主要问题之一是在形成后强烈的弹性恢复，或回弹。在这项工作中，通过弯曲测试来评估回弹现象，并确定所涉及的变量的影响。实验弯曲力不同意文献中提出的理论预测。尽管在该过程中被认为是影响因子的弯曲半径，但该工作表明，上述因子至少具有轻微的影响，至少用于行程800.发现影响材料恢复的因素最多是弯曲角度。

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