Effect of Endfeed on the Strains and Thickness During Bending and on the Subsequent Hydroformability of Steel Tubes 2003-01-2837
This research examines the effect of endfeed on the thickness and strains during bending of steel tubes. The tubes were bent using an instrumented rotary draw tube bender and subsequently hydroformed into a diamond-profile outside corner fill die. DQAK tubes with an OD of 76.2 mm and a thickness of 1.55 mm were investigated. Endfeed during bending was found to have a significant effect on the thickness and strains within the tube after bending, and numerical models that were generated showed good agreement with the experimental data. It is shown how slight changes in thickness can cause localized failure during hydroforming, and how excessive die clearances can cause large strains in undesired areas.
Citation: Dyment, J., Worswick, M., Normani, F., Oliveira, D. et al., "Effect of Endfeed on the Strains and Thickness During Bending and on the Subsequent Hydroformability of Steel Tubes," SAE Technical Paper 2003-01-2837, 2003, https://doi.org/10.4271/2003-01-2837. Download Citation
J. N. Dyment, M. J. Worswick, F. Normani, D. A. Oliveira, G. Khodayari
University of Waterloo, Industrial Research and Development Institute
International Body Engineering Conference & Exposition