Exceeding the Forming Limit Curve with Deep Drawing Followed by Electromagnetic Calibration
Exceeding the Forming Limit Curve with Deep Drawing Followed by Electromagnetic Calibration
复制标题
通过深拉超越成形极限曲线，然后进行电磁校准
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
A. Tekkaya
中科院分区：
文献类型：
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作者：
A. Brosius;O. Demir;L. Kwiatkowski;A. Tekkaya
我们表明，由深冲和电磁成形组成的工艺链可以超越材料的准静态成形极限曲线（FLC）。我们通过深冲形成尽可能接近 FLC 的圆形杯。然后通过电磁成型进一步成型（校准）这些杯子。电磁成形发生在冲头边缘半径区域。结果表明，该区域中的大量材料通过工艺链超过了 FLC。需要进一步的研究来揭示导致成形极限增加的因素。
We show that the materials quasi-static forming limit curve (FLC) can be exceeded by the process chain composed of deep drawing followed by electromagnetic forming. We form circular cups as close as possible to the FLC by deep drawing. These cups are then further formed (calibrated) by electromagnetic forming. The electromagnetic forming takes place in the punch edge radius region. The results show significant amount of material in this region exceeding the FLC by means of the process chain. Further research is needed to reveal the factors leading to this increase in forming limits.