Formability in incremental sheet forming and cyclic stretch-bending

Formability in incremental sheet forming and cyclic stretch-bending
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渐进式板材成型和循环拉伸弯曲的成型性

DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
A. H. Boogaard
A. H. Boogaard
中科院分区：
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文献类型：
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作者：
W. C. Emmens;A. H. Boogaard

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研究了板料渐进成形中的弯曲机理。拉伸弯曲（拉伸弯曲）抑制了不稳定性并提高了金属板的可成形性。成形极限的影响进行了研究，使用适应拉伸试验，同时弯曲。结果进行了比较，在实际ISF操作中观察到的，特别是关于板厚，刀具半径和步降的影响。还讨论了疲劳问题。观察到许多相似之处，证实了弯曲在ISF中的作用
Bending is investigated as a mechanism operating in Incremental Sheet Forming (ISF). Bending-under-tension (stretch-bending) suppresses instabilities and raises the formability of sheet metal. Effects on forming limits are investigated using adapted tensile tests with simultaneous bending. The results are compared to what has been observed in actual ISF operations, notably concerning effects of sheet thickness, tool radius and step-down. Also fatigue is discussed. Many similarities are observed, substantiating the role of bending in ISF