论文部分内容阅读
以“L”形镁合金铸件砂型铸造为例,对其凝固过程进行了合理的假设和简化,利用ANSYS平台,对其凝固过程温度场宏观变化进行了有限元计算,获得了砂型与铸件在凝固过程中的温度分布规律。在凝固过程中,铸件温度一直呈下降趋势,砂型温度的变化趋势是先升高后降低。计算结果表明,三维温度场的数值模拟能够反映铸件冷却过程温度场的动态变化,为提高铸件质量、确定凝固时间和优化工艺参数提供了参考。
Taking the “L” shape magnesium alloy casting sand casting as an example, the solidification process is reasonably assumed and simplified. The ANSYS platform is used to calculate the macroscopic change of the temperature field in the solidification process. The temperature distribution in the solidification process. In the solidification process, the casting temperature has been a downward trend, sand temperature trend is the first increase and then decrease. The calculation results show that the numerical simulation of the three-dimensional temperature field can reflect the dynamic changes of the temperature field during the cooling process of castings, and provide references for improving the quality of castings, determining the setting time and optimizing the process parameters.