The Effect of Flange Length on the Distribution of Longitudinal Strain during the Flexible Roll Forming Process

Young Yun Woo; Pil Gyu Kang; Il Yeong Oh; Young Hoon Moon

doi:10.4028/www.scientific.net/MSF.920.46

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HomeMaterials Science ForumMaterials Science Forum Vol. 920The Effect of Flange Length on the Distribution of...

The Effect of Flange Length on the Distribution of Longitudinal Strain during the Flexible Roll Forming Process

Abstract:

Flexible roll forming is an advanced sheet metal forming process which allows the production of variable cross-section profiles. In flexible roll forming process, nonuniform transversal distribution of the longitudinal strain can cause the longitudinal bow, which is deviation in height of the web over the length of the profile. To investigate the effect of flange length on the transversal distribution of the longitudinal strain, FEM simulations are conducted with different flange length for three blank shapes; trapezoid, convex and concave. The result shows that the longitudinal strain and longitudinal bow decrease with increasing flange length for a trapezoid and a concave blank. For a convex blank, the longitudinal strain and longitudinal bow increase with increasing flange length. To validate FEM simulation result, numerically obtained longitudinal strain has been compared with experimental results.

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Periodical:

Materials Science Forum (Volume 920)

Pages:

46-51

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.920.46

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Online since:

April 2018

Authors:

Young Yun Woo, Pil Gyu Kang, Il Yeong Oh, Young Hoon Moon*

Keywords:

FEM Simulation, Flange Length, Flexible Roll Forming, Longitudinal Bow, Longitudinal Strain

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* - Corresponding Author

References

[1] P. Groche, A. Zettler, S. Berner, G. Schneider, Development and verification of a one-step-model for the design of flexible roll formed parts. Int J Mater Form (2011) 371-74.

DOI: 10.1007/s12289-010-0998-3

Google Scholar

[2] J. Jiao, B. Rolfe, J. Mendiguren, L. Galdos, M. Weiss, The effect of process parameters on web-warping in the flexible roll forming of UHSS. in: Proceedings of the 2013 Tools and Technologies for Processing Ultra High Strength Materials Conference. (2013).

DOI: 10.1063/1.4850113

Google Scholar

[3] Q.V. Bui, J.P. Ponthot, Numerical simulation of cold roll forming process. J Mater Process Technol. 202 (2008) 275-282.

DOI: 10.1016/j.jmatprotec.2007.08.073

Google Scholar

[4] H. Ona, Study on development of intelligent roll forming machine. In ICTP 2005 - The 8th international conference on technology of plasticity, (2005).

Google Scholar

[5] J. Jiao, B. Rolfe, J. Mendiguren, M. Weiss, An analytical approach to predict web-warping and longitudinal strain in flexible roll formed sections of variable width. Int J Mech Sci 90 (2015) 228-238.

DOI: 10.1016/j.ijmecsci.2014.11.010

Google Scholar