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http://dx.doi.org/10.5228/KSPP.2008.17.2.107

Residual Stress Evolution during Leveling of Hot Rolled High Strength Coils and Camber Prediction by Residual Stress Distribution  

Park, K.C. (POSCO 기술연구소)
Ryu, J.H. (POSCO 기술개발실)
Publication Information
Transactions of Materials Processing / v.17, no.2, 2008 , pp. 107-112 More about this Journal
Abstract
In order to investigate the residual stress evolution during the leveling process of hot rolled high strength coils for cold forming, the in-plane residual stress of plate sampled at SPM, rough leveler and finish leveler were measured by cutting method. Residual stress was localized near the edge of plate. As the thickness of plate was increased, the size of residual stress region was expanded. The gradient of residual stress within the plate was reduced during the leveling process. But the residual stress itself was not removed completely within the ranges of tested conditions. The exact camber of cut plate was able to be predicted by the measurement of residual stress distribution after leveling of the plate.
Keywords
Leveling; Residual Stress; Camber; Hot Rolled Coil; Plate; Cutting;
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