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首页> 外文期刊>Journal of engineering materials and technology >Evaluation of Formability Under Different Deformation Modes for TWIP900 Steel
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Evaluation of Formability Under Different Deformation Modes for TWIP900 Steel

机译：TWIP900钢在不同变形模式下的可成形性评估

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摘要

Automotive manufacturers always seek high strength and high formability materials for automotive bodies. Advanced high strength steels (AHSS) are excellent candidates for this purpose. These steels generally show a reasonable degree of formability, in addition to their high strength. One particular type is the twinning-induced plasticity (TWIP) steel, which is a high manganese austenite steel, and represents a second generation in AHSS. In this study, comprehensive deformation analysis of'TWIP900CR steel including tensile, bending, Erichsen, and deep drawing of cylindrical cups tests is made. Finite element simulation of U and V shaped bending processes is also performed. Results indicate that the TWIP steel has good mechanical properties and high formability. However, spring-back is quite significant. The coining force should be considered in order to reduce the amount of springback. For springback prediction, it is found that the Yld2000-2d material model has better prediction capability than the HU148 model.
机译：汽车制造商一直在寻求用于车身的高强度和高成形性材料。先进的高强度钢（AHSS）是实现此目的的极佳选择。这些钢除了具有高强度外，通常还显示出合理的可成形性。一种特殊的类型是孪生诱导塑性（TWIP）钢，它是高锰奥氏体钢，代表了AHSS的第二代产品。在这项研究中，对'TWIP900CR钢进行了全面的变形分析，包括拉伸，弯曲，Erichsen和圆柱杯的深冲试验。还进行了U型和V型弯曲过程的有限元模拟。结果表明，TWIP钢具有良好的机械性能和高成形性。但是，回弹非常重要。为了减少回弹量，应考虑冲压力。对于回弹预测，发现Yld2000-2d材料模型比HU148模型具有更好的预测能力。

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