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首页> 外文期刊>Journal of Materials Engineering and Performance >Investigation on Temperature Change of Cold Magnesium Alloy Strips Rolling Process with Heated Roll
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Investigation on Temperature Change of Cold Magnesium Alloy Strips Rolling Process with Heated Roll

机译：热轧冷镁合金带材轧制过程温度变化的研究

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摘要

Magnesium alloy strips are widely used in aerospace, automotive industry, etc., which are difficult to produce through cold forming process due to their poor deformation ability. In this article, we studied whether the rolling process with heated roll could be used to roll cold magnesium alloy strips. Thermal-mechanical finite element simulation of the rolling process, using heated roll and cold strips to produce the magnesium alloy strips, was carried out. Influences of roll temperature, rolling velocity, rolling reduction ratio, and initial strip thickness on the thermal field and the mean temperature of magnesium alloy strips were analyzed. Both the heated area in strips in rolling deformation zone and the mean temperature of strips at exit of rolling deformation zone increase with increasing the roll temperature and/or rolling reduction ratio, and/or with decreasing the rolling velocity and/or initial strip thickness. Finally, a formula was developed to predict the mean temperature of strips under different rolling conditions, which also could be used to calculate the critical value of parameters in rolling process.
机译：镁合金带材广泛用于航空航天，汽车工业等，由于其变形能力差，难以通过冷成型工艺生产。在本文中，我们研究了加热辊轧制工艺是否可用于轧制冷镁合金带材。进行了轧制过程的热机械有限元模拟，使用加热的轧辊和冷轧带材生产镁合金带材。分析了轧辊温度，轧制速度，轧制压下率和初始带材厚度对镁合金带材的热场和平均温度的影响。随着轧制温度和/或轧制率的降低，和/或轧制速度和/或初始带材厚度的减小，轧制变形区中带材的受热面积和轧制变形区出口处带材的平均温度均增加。最后，建立了一个公式来预测不同轧制条件下带钢的平均温度，该公式还可用于计算轧制过程中参数的临界值。

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