The influence of several rolling parameters on curling during the rolling of sheet was investigated. The material studied was primarily 0.5 in. thick 2024 aluminum. The factors studied were different top and bottom roll diameters, differential strength through the thickness of the sheet, lubrication, roll-table height, reduction ratio, temperature, roll speed, and a beveled leading edge. The sheet curled toward the smaller roll, away from the better lubricated side, toward the strong side if one side was stronger than the other, and up when the entrance roll table was too high. Curling increased for greater reductions (under the conditions studied) and also increased slightly with increasing temperature. Curling was not sensitive to roll speed or a beveled leading edge. The curling observed can generally be explained on the basis of a shear in the roll gap because of different locations of the neutral points along the arcs of contact for the two rolls. Curling observed when one side of the sheet is significantly softer than the other appears to be due to greater elongation of the soft side during rolling.
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April 1973
Research Papers
Factors Affecting Curling in Rolled Sheet
C. R. Heiple
C. R. Heiple
The Dow Chemical Co., Rocky Flats Division, Golden, Colo.
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C. R. Heiple
The Dow Chemical Co., Rocky Flats Division, Golden, Colo.
J. Eng. Mater. Technol. Apr 1973, 95(2): 103-106 (4 pages)
Published Online: April 1, 1973
Article history
Received:
November 1, 1972
Online:
August 17, 2010
Citation
Heiple, C. R. (April 1, 1973). "Factors Affecting Curling in Rolled Sheet." ASME. J. Eng. Mater. Technol. April 1973; 95(2): 103–106. https://doi.org/10.1115/1.3443129
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