Appropriate Flower Pattern for Cold Roll Forming of Hat Channel Section

Document Type : Research Article

Authors

1 Department of Mechanical Engineering, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran

2 Department of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran

3 Department of Mechanical Engineering, Esfahan University of Technology, Esfahan, Iran

Abstract

Cold roll forming process is a process that a strip passes through a collection of rotary
rolls to be converted to a desired profile. Hat channel section is one of the roll forming products that has
many applications in various industries especially in automotive industry. In the present study proper
flower pattern for production of hat channel section is determined. Proper flower pattern in the cold roll
forming process can prevent some defects such as bowing and wrinkling. Flower pattern of hat channel
section was predicted by ABAQUS 3D simulation. Longitudinal strain is one of the results of simulation
which was used as a criterion for product quality evaluation. Results of simulations were verified by
experimental tests for first forming stand of hat channel section which were done in the present study. In
the experimental part of present study, effect of roll angle was investigated on the bow defect of product.
Experimental and numerical results of this study have a good agreement. Numerical and experimental of
this study showed that bow defect increases by increasing bending angle.

Keywords

Main Subjects

References

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Amirkabir Journal of Mechanical Engineering
Volume 49, Issue 4
March 2018
Pages 773-784

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