Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Residual Stress Evolution during Leveling of Hot Rolled High Strength Coils and Camber Prediction by Residual Stress Distribution

냉간 성형용 열연 고강도 강판의 교정 중 잔류응력 변화와 절단 후 캠버 발생 예측

  • Published : 2008.04.01
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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.

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References

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