Effect of Mechanical Properties on Formability in Hydroforming of ERW tubes 2003-01-2737
In the simple free bulging tests of straight tubes, expandability of tubes is affected by the both n- and r-value when axial-feeding is applied. Especially, the effect of the r-value was about 9 times larger than that of the n-value. Also, as for the hydroformability of pre-bent tubes, it was found that the effect of the r-value was about 2.5 times larger than that of n-value.
Based on these results, warm-reduced tubes produced by the HISTORY process newly developed by JFE Steel Corporation were examined in the hydroformability tests as suitable products for THF. In consequence of the tests, it was found that the HISTORY tubes have higher hydroformability than the conventional ERW tubes.
Citation: Sonobe, O., Hashimoto, Y., Iguchi, T., and Abe, H., "Effect of Mechanical Properties on Formability in Hydroforming of ERW tubes," SAE Technical Paper 2003-01-2737, 2003, https://doi.org/10.4271/2003-01-2737. Download Citation
Author(s):
O. Sonobe, Y. Hashimoto, T. Iguchi, H. Abe
Affiliated:
JFE STEEL Corp., Steel Research Labs., JAPAN, KTEC Corp., JAPAN
Pages: 6
Event:
International Body Engineering Conference & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Technical review
Historical reference
Steel
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