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Optimization of Tilt- Casting of Aluminum Alloy Automobile Drain Pipes through Numerical Simulation

机译：数值模拟优化铝合金汽车排水管的倾斜铸造

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摘要

The effect of major parameters, such as pouring temperature, tilt time and preheating temperature of mold, on the tilt casting of aluminum alloy automobile drain pipes is studied through numerical simulation using single factor and orthogonal test methods. The simulation results of single factor test indicate that the increase in the pouring temperature and mold preheating temperature could effectively reduce the shrinkage tendency and the shortage of tilt time would cause lower temperature gradient of casting at the beginning of solidification, thus would lead the extension of solidification time. And the results of orthogonal test showed that the sequence of factors having effect on the filling and solidification process, are pouring temperature, tilt time and preheating temperature of mold. Finally, combined the result of single factor test with orthogonal test, an optimized tilt-casting process was proposed by investigating the velocity distribution at each stage of the filling process and the isolated area distribution of liquid phase in the solidification process, and by predicting the position of porosity in the casting. The effectiveness of the proposed process parameters in producing high quality castings is also proved through numerical simulation.
机译：通过单因素和正交试验方法的数值模拟，研究了浇注温度，倾斜时间和模具预热温度等主要参数对铝合金汽车排水管倾斜铸造的影响。单因素试验的模拟结果表明，浇注温度和结晶器预热温度的升高可以有效地减少收缩趋势，倾斜时间的不足会导致凝固开始时铸件的温度梯度降低，从而导致铸坯延伸。凝固时间。正交试验的结果表明，影响模具填充和凝固过程的因素依次为浇注温度，倾斜时间和模具的预热温度。最后，将单因素试验的结果与正交试验相结合，通过研究填充过程各阶段的速度分布和凝固过程中液相的孤立面积分布，并预测凝固过程，提出了一种优化的倾斜浇铸过程。铸件中孔隙率的位置。通过数值模拟也证明了所提出的工艺参数在生产高质量铸件中的有效性。

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  • 来源
    《Materials science forum》 |2013年第2013期|633-638|共6页
  • 作者

    Ye Wang; Shiping Wu; Xiang Xue; Jingjie Guo;

  • 作者单位

    School of Materials Science and Engineering, Harbin Institute of Technology P.O. Box 434, Harbin 150001, P.R. China;

    School of Materials Science and Engineering, Harbin Institute of Technology P.O. Box 434, Harbin 150001, P.R. China;

    School of Materials Science and Engineering, Harbin Institute of Technology P.O. Box 434, Harbin 150001, P.R. China;

    School of Materials Science and Engineering, Harbin Institute of Technology P.O. Box 434, Harbin 150001, P.R. China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    numerical simulation; aluminum alloy; automobile drain pipes; tilt casting; single factor test; orthogonal test;

    机译：数值模拟铝合金;汽车排水管;倾斜铸造单因素测试;正交检验;

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