Tensile tests with bending: a mechanism for incremental forming.
Tensile tests with bending: a mechanism for incremental forming.
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弯曲拉伸测试：渐进成形的机制。
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
A. H. Boogaard
中科院分区：
文献类型：
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作者：
W. C. Emmens;A. H. Boogaard
在板料渐进成形（ISF）中，可以获得远高于普通成形极限的大的均匀应变。张力下弯曲已被提议作为一种可能的机制。本文介绍了重复弯曲的拉伸试验来模拟这种效应。事实上，已经获得了非常大的均匀伸长率，高达300%。最大应变随弯曲半径的减小而增大，并在某一最佳拉速下达到。循环弯曲对材料的硬化影响不大，可以绘制出大应变下的硬化曲线。
In incremental sheet forming (ISF) large uniform strains can be obtained well above the common forming limit. Bending-under-tension has been proposed as a possible mechanism. This paper describes tension tests with repetitive bending to simulate this effect. Indeed very large levels of uniform elongation have been obtained, up to 300 %. The maximum strain increases with decreasing bending radius, and is reached at a certain optimum pulling speed. The material hardening seems little affected by the cyclic bending operations, and a hardening curve for large strains could be constructed.