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Thermomechanical behavior of work rolls during warm strip rolling

Khalili, L ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1007/s11663-012-9714-7
  3. Abstract:
  4. A mathematical model was developed to assess thermomechanical behavior of work rolls during warm rolling processes. A combined finite element analysis-slab method was first developed to determine thermal and mechanical responses of the strip being rolled under steady-state conditions, and then, the calculated roll pressure and temperature field were utilized as the governing boundary conditions for the thermomechanical problem of the work roll. Finally, the thermomechanical stresses within the work rolls were predicted by a thermoelastic finite element approach. The results of the model indicate that, in warm strip rolling, thermal and mechanical stresses developed in the work rolls are comparable, and thus, both thermal and mechanical aspects of the problem should be considered in such a problem. Besides, the model was shown to be capable of determining the effects of various rolling parameters on the thermomechanical behavior of the work rolls during warm rolling process
  5. Keywords:
  6. Work roll ; Roll pressure ; Warm rolling ; Hot strip rolling ; Back-up roll ; Initial strip ; Strip temperature ; Roll surface ; Rolling load ; Cold strip ; Rolling speed ; Roll material ; Rolling process ; Convection heat transfer ; Hot rolling experiment
  7. Source: Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science ; 2012 , Pages 1-11 ; 10735615 (ISSN)
  8. URL: http://link.springer.com/article/10.1007%2Fs11663-012-9714-7