The finite-element method (FEM) has been used to numerically investigate the effect of work roll configuration on the leveling effectiveness of tail-up bent plates. Leveling is a process used to minimize shape defects, including flatness imperfections and uniformity of internal stresses in shape-critical applications. Leveling plays an important role in delivering the desired plate shape and meeting the required product standards. To simulate the roller leveling effectiveness of tail-up bent plates, an initially flat plate was plastically bent prior to leveling and was passed through the leveling rolls. Leveling effectiveness was estimated by the vertical displacements of tail-up bent plates with two different roll configurations. One configuration adopts a gradually increasing roll gap, while the other configuration maintains the same roll gap in the first two sets of rolls and gradually increases the roll gap for the later rolls. For comparison purposes, the entry and exit roll gaps of the two roll configurations are set to the same roll gap. To verify the accuracy of the numerical simulations, actual leveling experiments were performed using tail-up bent plates. The results show that the roll configuration significantly influences the leveling effectiveness of the tail-up bent plates. Higher leveling effectiveness is obtained for a leveling configuration that imparts more severe deformation at the earlier leveling stages. Through the analysis, the work roll configuration is determined to be essential to increase leveling effectiveness of tail-up bent plates.
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July 2016
Research-Article
Effect of Roll Configuration on the Leveling Effectiveness of Tail-Up Bent Plate Using Finite-Element Analysis
Jae Hyung Seo,
Jae Hyung Seo
R&D Laboratory,
POSCO,
Pohang 37859, Korea
POSCO,
Pohang 37859, Korea
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Chester J. Van Tyne,
Chester J. Van Tyne
Department of Metallurgical
and Materials Engineering,
Colorado School of Mines,
Golden, CO 80401
and Materials Engineering,
Colorado School of Mines,
Golden, CO 80401
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Young Hoon Moon
Young Hoon Moon
School of Mechanical Engineering,
Pusan National University,
Busan 609-735, South Korea
e-mail: yhmoon@pusan.ac.kr
Pusan National University,
Busan 609-735, South Korea
e-mail: yhmoon@pusan.ac.kr
Search for other works by this author on:
Jae Hyung Seo
R&D Laboratory,
POSCO,
Pohang 37859, Korea
POSCO,
Pohang 37859, Korea
Chester J. Van Tyne
Department of Metallurgical
and Materials Engineering,
Colorado School of Mines,
Golden, CO 80401
and Materials Engineering,
Colorado School of Mines,
Golden, CO 80401
Young Hoon Moon
School of Mechanical Engineering,
Pusan National University,
Busan 609-735, South Korea
e-mail: yhmoon@pusan.ac.kr
Pusan National University,
Busan 609-735, South Korea
e-mail: yhmoon@pusan.ac.kr
1Corresponding author.
Manuscript received May 12, 2015; final manuscript received December 20, 2015; published online March 8, 2016. Assoc. Editor: Gracious Ngaile.
J. Manuf. Sci. Eng. Jul 2016, 138(7): 071004 (7 pages)
Published Online: March 8, 2016
Article history
Received:
May 12, 2015
Revised:
December 20, 2015
Citation
Hyung Seo, J., Van Tyne, C. J., and Hoon Moon, Y. (March 8, 2016). "Effect of Roll Configuration on the Leveling Effectiveness of Tail-Up Bent Plate Using Finite-Element Analysis." ASME. J. Manuf. Sci. Eng. July 2016; 138(7): 071004. https://doi.org/10.1115/1.4032392
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