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结合涡轮增压器开发中涡轮壳的快速铸造,根据打印模样材料的热特性调整铸造过程的收缩因子以保证铸件精度;基于其三维数模进行多个铸造工艺方案设计,按照型壳温度型温度等参数进行正交试验确定了浇注温度;结合实际工艺流程提取边界条件、利用Pro/CAST软件进行铸造充型凝固模拟计算,解决材料在充型凝固过程中的缺肉、缩松等缺陷;在对多方案优化的基础上进行试浇,短期内实现了涡轮壳铸件的成形控制。
Combined with the rapid casting of turbine shell in the development of turbocharger, the shrinkage factor of the casting process is adjusted according to the thermal characteristics of the printed material to ensure the casting accuracy. Based on the three-dimensional numerical model, several casting process schemes are designed, And other parameters to determine the pouring temperature orthogonal experimental conditions combined with the extraction of the boundary conditions, the use of Pro / CAST simulation casting mold filling and solidification process to solve the lack of material in the filling, shrinkage and other defects; in On the basis of multi-program optimization test pouring, short-term realization of the turbine shell casting forming control.