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Numerical Simulation and Experimental Verification of Temperature Field in Medium Plate Rolling of AZ31 Magnesium Alloy

Journal Article


Abstract


  • The temperature distribution of the AZ31 magnesium alloy in the rolling deformation zone was analyzed by numerical simulation. The empirical formula of the average temperature of the magnesium plate after rolling with respect to the roll temperature, the rolling velocities, the rolling reduction rate, and the thickness of the plate were established and supplemented with corresponding experimental verification. The results show that when the magnesium plate is thin and the rolling velocity is small, the plastic deformation heat of the center layer of the magnesium plate is transferred to the surface in the rolling deformation zone. The temperature rise of the center layer cannot represent the temperature rise caused by the deformation of the magnesium plate. The average temperature of the magnesium plate after rolling is positively related to the roll temperature, rolling velocity and rolling reduction rate, and is inversely related to the sheet thickness. The maximum relative error between the calculated and experimental values of the formula is 8.34%, and the average relative error is 7.4%. The formula can well predict the average temperature of the magnesium plate after rolling. The proposed empirical formula for magnesium plate temperature prediction is conducive to the realization of “isothermal rolling” control of AZ31 magnesium alloy sheet; it has important guiding significance for the reasonable formulation of magnesium alloy rolling process system and the selection of subsequent rolling equipment.

UOW Authors


  •   Li, Yang (external author)
  •   Ma, Lifeng (external author)
  •   Jiang, Zhengyi (external author)
  •   Huang, Zhiquan (external author)
  •   Lin, Jinbao (external author)
  •   Ji, Yafeng (external author)

Publication Date


  • 2019

Citation


  • Li, Y., Ma, L., Jiang, Z., Huang, Z., Lin, J. & Ji, Y. (2019). Numerical Simulation and Experimental Verification of Temperature Field in Medium Plate Rolling of AZ31 Magnesium Alloy. Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering, 48 (7), 2185-2192.

Scopus Eid


  • 2-s2.0-85072880900

Number Of Pages


  • 7

Start Page


  • 2185

End Page


  • 2192

Volume


  • 48

Issue


  • 7

Place Of Publication


  • China

Abstract


  • The temperature distribution of the AZ31 magnesium alloy in the rolling deformation zone was analyzed by numerical simulation. The empirical formula of the average temperature of the magnesium plate after rolling with respect to the roll temperature, the rolling velocities, the rolling reduction rate, and the thickness of the plate were established and supplemented with corresponding experimental verification. The results show that when the magnesium plate is thin and the rolling velocity is small, the plastic deformation heat of the center layer of the magnesium plate is transferred to the surface in the rolling deformation zone. The temperature rise of the center layer cannot represent the temperature rise caused by the deformation of the magnesium plate. The average temperature of the magnesium plate after rolling is positively related to the roll temperature, rolling velocity and rolling reduction rate, and is inversely related to the sheet thickness. The maximum relative error between the calculated and experimental values of the formula is 8.34%, and the average relative error is 7.4%. The formula can well predict the average temperature of the magnesium plate after rolling. The proposed empirical formula for magnesium plate temperature prediction is conducive to the realization of “isothermal rolling” control of AZ31 magnesium alloy sheet; it has important guiding significance for the reasonable formulation of magnesium alloy rolling process system and the selection of subsequent rolling equipment.

UOW Authors


  •   Li, Yang (external author)
  •   Ma, Lifeng (external author)
  •   Jiang, Zhengyi (external author)
  •   Huang, Zhiquan (external author)
  •   Lin, Jinbao (external author)
  •   Ji, Yafeng (external author)

Publication Date


  • 2019

Citation


  • Li, Y., Ma, L., Jiang, Z., Huang, Z., Lin, J. & Ji, Y. (2019). Numerical Simulation and Experimental Verification of Temperature Field in Medium Plate Rolling of AZ31 Magnesium Alloy. Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering, 48 (7), 2185-2192.

Scopus Eid


  • 2-s2.0-85072880900

Number Of Pages


  • 7

Start Page


  • 2185

End Page


  • 2192

Volume


  • 48

Issue


  • 7

Place Of Publication


  • China