【摘要】 针对小批量试制生产的出气联通管铸件，基于Magma软件进行铸造工艺建模、数值模拟分析，待工艺确定后，再采用3D打印方法进行砂型快速制作，并完成样件浇注。结果表明，采用数值模拟+3D打印砂型的方法是实现铸造工艺快速固化及铸件的快速铸造方式，节省了模具制造、改进所耗的大量费用，对快速响应生产具有重要意义。更多还原

【Abstract】 For the air outlet connecting pipe castings produced in small batch trial production, the casting process modeling and numerical simulation analysis were carried out based on Magma software. After the process was determined, the sand mold was quickly made by 3D printing method, and the pouring of the sample was completed. The results showed that the experimental method adopted in this paper can realize the rapid solidification of the casting process and the rapid casting of the casting, and save a lot of costs of mold manufacturing and repair, which is of great significance to the actual production.更多还原