Research on the Twist of Z-Section Steel in Cold Roll Forming

Shi Jian Yu; Yu  Liu; Zhi Yun Shi

doi:10.4028/www.scientific.net/AMM.159.244

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 159Research on the Twist of Z-Section Steel in Cold...

Research on the Twist of Z-Section Steel in Cold Roll Forming

Abstract:

During the cold rolling forming of non-symmetric Z-section steel, the twist will appear because two sides of the blank suffering bending moments of the same direction. In this paper, simplified FE model was used to simulate the closing process of the rolls. The contact forces of the rollers on blank, and the stress and strain of the blank was obtained by FE analysis, and relations between section torque and the position angle θ as studied and the result that when θ=10⁰ the torque is minimum was discovered. The further detailed calculations showed that angle θ was only correlative with the geometry of the product section and didn’t change with the altering of material properties.