摘要
对大型薄壁铝合金舱体铸件在熔模石膏型铸造过程中的变形进行了机理分析与试验验证。利用Magmasoft仿真模拟软件预判舱体铸件的残余应力分布情况,并采取优化舱体结构、控制蜡样变形、改善固溶阶段升温梯度及速度、提高淬火温度、控制冷却速度等措施,予以验证,成功地解决了大型薄壁铝合金舱体在熔模石膏型铸造过程中变形量过大的问题,并获得了该类铸件变形控制的大量适用工艺参数及机理。
Mechanism analysis and test research on the deformation of a large-scale thin-wall Al-alloy cabin body generated in plaster investment casting were carried out. The residual stress distribution of the cabin body castings was simulated and predicted by using Magmasoft software. By optimizing the structure of the cabin body, controlling wax pattern deformation, improving temperature rise gradient and rate in the solid solution treatment period, increasing the quenching temperature and controlling the cooling rate, the large deformation amount problem of the cabin body manufactured by plaster investment casting was solved, and reasonable process parameters and mechanism for controlling deformation of the aluminum alloy castings were acquired.
出处
《铸造技术》
CAS
北大核心
2013年第10期1336-1339,共4页
Foundry Technology
关键词
变形控制
大型薄壁铝合金舱体
机理研究
熔模石膏型铸造
热处理
deformation control
large-scale thin-wall Al-alloy cabin body
mechanism research
investment casting
heattreatment
