基于接触摩擦量化作用的镁合金轧制力预报研究(英文)
发布时间:2019-02-24 10:12
【摘要】:针对镁合金热轧制工艺,通过协调有限元分析结果及物理试验数据,提出一种关于热轧制接触摩擦因子的确定方法,耦合多轧制工艺参数进一步拟合出其求解关系式,工艺参数包括:轧制温度,轧制速度以及压下率。在之前对AZ31B镁合金板材轧制过程轧制力预报模型及温度场数学模型建立研究的基础上,综合考虑接触单位压力及摩擦应力两方面因素的作用,对前期轧制力预报模型进行了优化重构,经确定接触摩擦作用到轧辊的压力约占整体轧制力的4.36%。
[Abstract]:According to the hot rolling process of magnesium alloy, a method for determining contact friction factor of hot rolling process is proposed by coordinating the results of finite element analysis and physical test data. Process parameters include: rolling temperature, rolling speed and reduction rate. Based on the previous research on the prediction model of rolling force and the mathematical model of temperature field in the rolling process of AZ31B magnesium alloy sheet, two factors such as contact unit pressure and friction stress are considered synthetically. The prediction model of pre-rolling force is optimized and reconstructed. It is determined that the pressure of the roll due to contact friction is about 4.36% of the total rolling force.
【作者单位】: 太原科技大学山西省冶金设备设计理论与技术重点实验室;东北大学材料电磁过程研究教育部重点实验室;
【基金】:National Natural Science Foundation of China(51105264) Natural Science Foundation of Shanxi Province(U1510131) Science and Technology Plan of Jincheng(201501004-10)
【分类号】:TG339
[Abstract]:According to the hot rolling process of magnesium alloy, a method for determining contact friction factor of hot rolling process is proposed by coordinating the results of finite element analysis and physical test data. Process parameters include: rolling temperature, rolling speed and reduction rate. Based on the previous research on the prediction model of rolling force and the mathematical model of temperature field in the rolling process of AZ31B magnesium alloy sheet, two factors such as contact unit pressure and friction stress are considered synthetically. The prediction model of pre-rolling force is optimized and reconstructed. It is determined that the pressure of the roll due to contact friction is about 4.36% of the total rolling force.
【作者单位】: 太原科技大学山西省冶金设备设计理论与技术重点实验室;东北大学材料电磁过程研究教育部重点实验室;
【基金】:National Natural Science Foundation of China(51105264) Natural Science Foundation of Shanxi Province(U1510131) Science and Technology Plan of Jincheng(201501004-10)
【分类号】:TG339
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