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Metals and Materials International

, Volume 23, Issue 5, pp 923–929 | Cite as

Coupled thermal-fluid-mechanics analysis of twin roll casting of A7075 aluminum alloy

  • Yun-Soo Lee
  • Hyoung-Wook Kim
  • Jae-Hyung ChoEmail author
  • Se-Hwan Chun
Article

Abstract

Better understanding of temperature distribution and roll separation force during twin roll casting of aluminum alloys is critical to successfully fabricate good quality of aluminum strips. Therefore, the simulation techniques are widely applied to understand the twin roll casting process in a comprehensive way and to reduce the experimental time and cost of trial and error. However, most of the conventional approaches are considered thermally coupled flow, or thermally coupled mechanical behaviors. In this study, a fully coupled thermal-fluid-mechanical analysis of twin roll casting of A7075 aluminum strips was carried out using the finite element method. Temperature profile, liquid fraction and metal flow of aluminum strips with different thickness were predicted. Roll separation force and roll temperatures were experimentally obtained from a pilot-scale twin roll caster, and those results were compared with model predictions. Coupling the fluid of the liquid melt to the thermal and mechanical modeling reasonably predicted roll temperature distribution and roll separation force during twin roll casting.

Keywords

twin roll casting aluminum alloys thermal-fluid-mechanics computer simulation roll separation force 

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Copyright information

© The Korean Institute of Metals and Materials and Springer Science+Business Media B.V. 2017

Authors and Affiliations

  • Yun-Soo Lee
    • 1
  • Hyoung-Wook Kim
    • 1
    • 2
  • Jae-Hyung Cho
    • 1
    • 2
    Email author
  • Se-Hwan Chun
    • 3
  1. 1.Metallic Materials DivisionKorea Institute of Materials ScienceChangwonRepublic of Korea
  2. 2.Department of Advanced Materials EngineeringKorea University of Science and TechnologyDaejeonRepublic of Korea
  3. 3.Technical Support TeamForge Master Korea Co., Ltd.ChangwonRepublic of Korea

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