熔模铸造过程数值模拟研究进展  

Research on Numerical Modeling of Investment Casting Process

作　　者：许庆彦 XU Qing-yan(Key Laboratory for Advanced Materials Processing Technology(Ministry of Education),School of Materials Science and Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]清华大学材料学院,先进成形制造教育部重点实验室,北京100084

出　　处：《铸造》2022年第7期803-813,共11页Foundry

基　　金：国家科技重大专项(2017-Ⅶ-0008-0101,2017-Ⅵ-0003-0073)赞助

摘　　要：熔模铸造是一项传统的近净成形铸造工艺,在工业制造领域应用广泛。随着社会的高速发展,船舶、航空等设备制造领域对熔模铸造产品的性能要求日趋严格。传统基于试错法的熔模铸造工艺优化手段耗时长、资金需求大,难以满足工业需求。数值模拟技术作为一种低能耗、高效率、短周期的快速研究方法已经在熔模铸造领域得到了广泛认可。本文介绍了熔模铸造工艺物理过程,描述了熔模铸造数值模拟常用的数学模型,总结了熔模铸造蜡模成形、型芯成形和铸件成形过程中数值模拟技术的研究进展,展望了熔模铸造在数值模拟方面的发展方向。Being a traditional and precise near net shape casting process,investment casting has been widely applied in the field of industrial manufacturing.The process optimization of the investment casting process only based on the traditional trial and error method cannot meet the requirements of high-precision casting and rapid manufacturing.As a developing research method with low energy consumption,high efficiency,numerical simulation technology has been widely used in the field of the investment casting.This paper introduced the physical process and mathematical models of the investment casting process.The simulations of temperature field,flow field,stress field and microstructure field in the investment casting process were presented.Then the research progress of the numerical simulation technology in the fabrication of wax pattern,ceramic core was summarized further.Finally,the future development of the modeling and simulation technology for the investment casting process was proposed.

关 键 词：熔模铸造 数值模拟 铸件成形 蜡模成形 型芯成形 

分 类 号：TG249.5[机械工程—精密仪器及机械] TP391.9[金属学及工艺—铸造]