ProCAST软件在铸造凝固模拟中的应用

Application of the software ProCAST in the casting of solidification simulation

为研究铸造工艺对铸件质量的影响,利用计算机进行了铸件的凝固模拟.介绍了有限元软件Pro-CAST的组成模块、功能以及应用,在应用实例中利用ProCAST软件模拟预测了铸件砂铸工艺中产生的宏观缩孔缺陷.研究表明:铸件中存在模拟预测的宏观缩孔缺陷;对浇注系统和冒口设置参数进行了优化,优化后的工艺提高了铸件产量,降低了成本;模拟结果表明,铸造模拟软件ProCAST能够准确地预测铸件在充型凝固过程中可能产生的缺陷.

For researching the influence of casting process on the quality of castings, the solidification simulation of casting is developed by computer. Composing modules and functions of the FEM software ProCAST are introduced and the defects of the casting process are simulated. We then present an example for the ProCAST software to instruct the design of casting process. Workflow of ProCAST is described. The shrinkage defects of castings cast by sand molding process have been predicted using FEM software ProCAST. The simulated result laid down a foundation for improving the cast technology of the castings. The parameters of pouring system and riser system are optimized. The optimized process improved the casting yields and decreased the costs. The simulation way and approach used in this paper can be seen as a guideline in the design of other casting processes.