An experimental investigation of edge strain and bow in roll forming a V-section

Abeyrathna, Buddhika, Rolfe, Bernard, Hodgson, Peter and Weiss, Matthias 2014, An experimental investigation of edge strain and bow in roll forming a V-section, Materials science forum, vol. 773-774, pp. 153-159, doi: 10.4028/

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Title An experimental investigation of edge strain and bow in roll forming a V-section
Author(s) Abeyrathna, BuddhikaORCID iD for Abeyrathna, Buddhika
Rolfe, BernardORCID iD for Rolfe, Bernard
Hodgson, Peter
Weiss, MatthiasORCID iD for Weiss, Matthias
Journal name Materials science forum
Volume number 773-774
Start page 153
End page 159
Total pages 7
Publisher Trans Tech Publications
Place of publication Durnten-Zurich, Switzerland
Publication date 2014
ISSN 0255-5476
Keyword(s) Longitudinal edge strain
Yield strength
Longitudinal bow
Roll forming
Summary V-sections were roll formed from two grades of steel, and the strain on the top and bottom of the strip near the edge was measured using electrical resistance strain gauges. The channels were bent to a radius of 2 and 15 mm along the centerline. The steel strips were of mild and dual phase steel of yield strength 367 MPa and 597 MPa respectively. The longitudinal bow was measured using a 3-dimensional scanning system. The strain measurements were analysed to determine bending and mid-surface strains at the edge during forming. The peak longitudinal edge strain increased with material yield strength for both profile radii. For the 15 mm radius, the bow was larger in the dual phase steel than in the mild steel. For the 2 mm profile radius, the bow was smaller compared with the 15 mm profile radius and it was similar for both steels. It was observed that the difference between the peak longitudinal edge strain and yield strength to Youngs modulus ratio of the material is an important factor in determining longitudinal bow.
Language eng
DOI 10.4028/
Field of Research 091006 Manufacturing Processes and Technologies (excl Textiles)
Socio Economic Objective 861205 Sheet Metal Products
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2014, Trans Tech Publications
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