铝合金叶轮熔模铸造数值模拟研究  

Numerical Simulation of Investment Casting Process for Aluminum Alloy Impeller

作　　者：张逢骏 张洁[1] 奚磊[1] 何志军[1] 王禹明[1] 

机构地区：[1]江苏大学机械工程学院,江苏镇江212013

出　　处：《铸造技术》2016年第4期805-808,共4页Foundry Technology

摘　　要：以A356铝合金叶轮为研究对象,对铸件设计了侧注式和顶注式浇注系统。利用Procast软件进行数值模拟分析,预测分析了不同浇注方式下缺陷可能出现的位置。结果表明,侧注式浇注系统充型过程平稳,卷气缩松缩孔现象较少,同时减小了叶片根部与壳体连接部位的有效应力。Taking an A356 aluminum alloy impeller as research object, the top gating system and side gating system were designed. Tile position of defects that may happen was forecasted by Procast software numerical simulation analysis. The results show that the side gating system fills smoothly, the coil gas and shrinkage porosity （hole） occurs less. This can reduce the effective stress between the impeller root connected with shell.

关 键 词：叶轮 浇注系统 数值模拟 有效应力 

分 类 号：TG249.5[机械工程—精密仪器及机械]