Numerical Simulation and Experimental Validation of Squeeze Casting of AlSi9Mg Aluminum Alloy Component with a Large Size

材料科学 合金 铸造 压力(语言学) 圆柱 复合材料 沟槽(工程) 计算机模拟 结构工程 冶金 机械 机械工程 工程类 哲学 语言学 物理
作者
Jufu Jiang,Jing Yan,Yingze Liu,Guoquan Hu,Ying Wang,Changjie Ding,Dechao Zou
出处
期刊:Materials [Multidisciplinary Digital Publishing Institute]
卷期号:15 (12): 4334-4334 被引量:10
标识
DOI:10.3390/ma15124334
摘要

The squeeze casting process for an AlSi9Mg aluminum alloy flywheel housing component was numerically simulated using the ProCAST software, and orthogonal simulation tests were designed according to the L16 (4) 5 orthogonal test table to investigate the alloy melt flow rule under four factors and four levels each of the pouring temperature, mold temperature, pressure holding time and specific pressure, as well as the distributions of the temperature fields, stress fields and defects. The results showed that the flywheel housing castings in all 16 test groups were fully filled, and the thinner regions solidified more quickly than the thicker regions. Hot spots were predicted at the mounting ports and the convex platform, which could be relieved by adding a local loading device. Due to the different constraints on the cylinder surface and the lower end surface, the solidification was inconsistent, the equivalent stress at the corner junction was larger, and the castings with longer pressure holding time and lower mold temperature had larger average equivalent stress. Shrinkage cavities were mainly predicted at mounting ports, the cylindrical convex platform, the peripheral overflow groove and the corner junctions, and there was also a small defect region at the edge of the upper end face in some test groups.
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