Comparison of Bending of Automotive Steels in Roll Forming and in a V-Die

Matthias Weiss; Jascha Marnette; Preston Wolfram; Jon Larrañaga; Peter D. Hodgson

doi:10.4028/www.scientific.net/KEM.504-506.797

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 504-506Comparison of Bending of Automotive Steels in Roll...

Comparison of Bending of Automotive Steels in Roll Forming and in a V-Die

Abstract:

Bending in a V-die has been used to indicate the outcome of bending in cold roll forming, although little direct correlation has been performed. In this work direct comparison of the springback in both processes was performed using six samples of automotive steels in a conventional roll forming line where the transverse springback is measured. A bend of similar radius was formed in a V-die and the springback determined. In general, the springback in V-die forming was greater than in roll forming, in some cases by a factor of 2. The theoretical springback angle was determined for all steels using a simple and approximate analytical equation and compared to the experimental roll forming and bending results. While for the roll forming process good agreement was achieved the theoretical values significantly underestimated springback in the V-bending process.

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Periodical:

Key Engineering Materials (Volumes 504-506)

Pages:

797-802

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.504-506.797

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Cite this paper

Online since:

February 2012

Authors:

Matthias Weiss, Jascha Marnette, Preston Wolfram, Jon Larrañaga, Peter D. Hodgson

Keywords:

Bending, Incremental Bending, Roll Forming, Springback

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