摘要随着计算机技术和数值计算技术的进展完善，计算机在铸造领域得到了广泛的讨论和应用。它可以在不进行实际浇注的情况下，模拟铸造的充型、凝固传热、应力场、微观组织分布、缩孔与缩松的形成等过程，可以大大提高生产效率和经济效益，对于铸造生产具有十分重要的意义。本论文中，首先用高级绘图软件 UG 实现电机圆筒外壳的三维实体造型，并导出*.stl 格式的文件；然后利用数值模拟软件 AnyCasting，对其进行一系列的参数设置，选择优化的网格剖分数量，完成对铸件的前处理后，开始模拟电机外壳铸造的整个过程。最后输出结果并对其分析。本文着重分析了充型、凝固过程，与其速度场、温度场的变化情况。主要结论如下：（1）利用高级绘图软件对三维实体造型的设计，这是数值模拟的前期准备阶段。绘制的准确与否，直接影响到后期的模拟结果。（2）Anycasting 软件对铸件的充型、凝固过程数值模拟能比较准确地反映铸件的实际状况，预测可能产生的铸造缺陷与产生缺陷的部位。（3）对电机圆筒外壳铸件解剖和宏观观察，结果显示边缘处尚存在一定程度的缩孔，缩松缺陷，但缺陷较少，说明这个设计工艺较为合理。关键词：三维实体造型，数值模拟，充型AbstractWith thedevelopmentof thecomputing technology and the numerical calculating technology, the compute was applied to the casting field more and more. The numerical simulation technology can simulate the forming process of moldfilling, the solidification,the conduct heat, the stress field,the distribution of micro-organization and the shrinkage cavity and so on in the casting without experiencing practical molding, and improve greatly the yield efficiency and economic benefits. Therefore, the compute technology has become important meanings in casting production. In this thesis,firstly, the three-dimensional solid modeling of motor shell shouldbe achieved by the advanced graphics software UG and then export it the *.stl file format. Secondly,carry out a series of parameter settings and select the optimal number of mesh using software "Anycasting". Thirdly,after completion of thepre-ca...
