Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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An Approximate Model for Predicting Roll Force in Rod Rolling

  • Lee, Youngseog (Plate, Rod & Welding Group and Steel Products & Process Group at Technical Research Laboratories, Pohang Iron and Steel Corp.(POSCO)) ;
  • Kim, Hong-Joon (Plate, Rod & Welding Group and Steel Products & Process Group at Technical Research Laboratories, Pohang Iron and Steel Corp.(POSCO))
  • Published : 2002.04.01
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Abstract

This paper presents a study of the effect of rolling temperature, roll gap (pass height), initial specimen size and steel grades of specimens on the roll force in round-oval-round pass sequence by applying approximate method and verifications through single stand pilot rod rolling tests. The results show that the predicted roll forces are in good agreement with the experimentally measured ones. The approximate model is independent of the change of roll gap, specimen size and temperature. Thus, the generality of the prediction methodology employed in the approximate model is proven. This study also demonstrates that Shida's constitutive equation employed in the approximate model needs to be corrected somehow to be applicable for the medium and high carbon steels in a lower temperature interval (700∼900$\^{C}$).

Keywords

References

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