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Study on optimization of thermal spinning process of accumulator shell

机译：蓄能器壳热纺丝工艺优化研究

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摘要

In view of the shortcomings of the existing hot spinning process technology of the accumulator shell, a method for optimizing the multi-spinning process parameters is proposed. The Johnson-Cook constitutive model of the accumulator shell material - 34CrMo4 alloy steel - was established with its parameters obtained experimentally. The finite element simulation was carried out for the hot spinning and closing process. Based on which, three parameters with the greatest influence on the spinning formation were studied: spinning temperature, spindle speed and friction coefficient. Combined with the central composite test, the response surface model and the mapping relationship between the three parameters and the maximum mises stress as well as the maximum wall thickness increment of the shell were established. The Pareto optimized solution set was obtained through multi-objective optimization. Under the condition of not affecting product quality, the optimized solution with low spinning temperature and high spindle speed is selected to reduce energy loss and improve work efficiency. The results indicate that the optimized process is experimentally verified to reduce the process temperature by nearly 30 degrees C, and the efficiency is increased by 25%.
机译：鉴于蓄能器外壳的现有热纺工艺技术的缺点，提出了一种优化多纺工艺参数的方法。蓄电池壳材料的约翰逊烹饪本构模型 - 34Crmo4合金钢 - 以实验获得的参数建立。为热纺纱和闭合过程进行了有限元模拟。基于其中，研究了对纺纱形成影响最大的三个参数：纺丝温度，主轴速度和摩擦系数。结合中央复合试验，建立了三个参数与最大误判关系的响应面模型和映射关系以及壳体的最大壁厚增量。通过多目标优化获得Pareto优化的解决方案集。在不影响产品质量的情况下，选择具有低纺丝温度和高主轴速度的优化解决方案，以降低能量损失，提高工作效率。结果表明，经过实验验证的优化过程以将工艺温度降低近30℃，效率提高了25％。

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  • 来源
    《Mechanics & Industry》 |2020年第4期|共14页
  • 作者

    Li Bin; Li Yunan; Zhu Peihao; Ma Wenpeng; Xiao Yinhong; Li Xiang;

  • 作者单位

    Tianjin Univ Technol Sch Mech Engn Tianjin Key Lab Adv Mechatron Syst Design &

    Intel Tianjin 300384 Peoples R China;

    Tianjin Univ Technol Sch Mech Engn Tianjin Key Lab Adv Mechatron Syst Design &

    Intel Tianjin 300384 Peoples R China;

    Tianjin Univ Technol Sch Mech Engn Tianjin Key Lab Adv Mechatron Syst Design &

    Intel Tianjin 300384 Peoples R China;

    Tianjin Univ Technol Sch Mech Engn Tianjin Key Lab Adv Mechatron Syst Design &

    Intel Tianjin 300384 Peoples R China;

    Tianjin Univ Technol Sch Mech Engn Tianjin Key Lab Adv Mechatron Syst Design &

    Intel Tianjin 300384 Peoples R China;

    Tianjin Univ Technol Sch Mech Engn Tianjin Key Lab Adv Mechatron Syst Design &

    Intel Tianjin 300384 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 机械、仪表工业;
  • 关键词

    Accumulator; hot spinning technology; finite element; response surface; multi-objective optimization;

    机译：蓄能器;热纺纱技术;有限元;响应面;多目标优化;

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