基于数值模拟的支座熔模铸造工艺迭代优化  

Iterative optimization of investment casting process for support based on numerical simulation

作　　者：蒋梦麒 何博[1,2] JIANG Meng-qi;HE Bo(School of Materials Engineering,Shanghai University of Engineering Science,Shanghai 201600,China;Research Center of High-temperature Alloy Precision Forming,Shanghai University of Engineering Science,Shanghai 201600,China)

机构地区：[1]上海工程技术大学材料工程学院,上海201600 [2]上海工程技术大学高温合金精密成型研究中心,上海201600

出　　处：《模具工业》2021年第4期1-5,共5页Die & Mould Industry

基　　金：上海市科委“创新行动计划”基础研究项目(17JC1400600;17JC1400603)。

摘　　要：运用ProCAST软件模拟熔模铸造K444合金支座的铸造过程,分析了铸件凝固过程中的温度场分布,预测了铸件中缺陷的种类与位置,根据模拟结果对浇注系统与浇注工艺进行了优化,试制结果显示,优化后的工艺可以获得无缺陷的铸件。The casting process of investment casting K444 alloy support was simulated by using ProCAST software,and the temperature field in the solidification process of the casting was ana⁃lyzed,and the types and positions of defects in the casting were predicted.According to the simula⁃tion results,the casting system and casting process were optimized,and the trial production re⁃sults showed that the optimized process could obtain the casting without defects.

关 键 词：迭代优化 数值模拟 固相分数 孤立液相区 熔模铸造 

分 类 号：TG249.5[机械工程—精密仪器及机械] O242.21[金属学及工艺—铸造]