The numerical simulation is similar to the experimental research, which uses the computer. 3D printing is an experimental study, which is compared with simulation. 3D printing and precision casting of impellers are frequently used in industrial scenarios. To address the problem of low casting yield of aluminium alloy impellers in gypsum-type casting, three-dimensional modelling by magics, casting simulation, and parameter optimization method by applying ProCAST software are used to improve the casting yield of impellers. The results show that the optimized structure of the casting system is more reasonable, so that the shrinkage and shrinkage defects are concentrated in the location of the riser; the maximum stress value of the casting and the casing during the solidification stage is 2.71 MPa, which is much smaller than the stress limit of the casing; the maximum horizontal displacement of the casting along the X and Y axes after solidification is completed at 0.025 mm and 0.022 mm, respectively, and the maximum displacement along the Z axis due to the presence of the riser is 0.009 mm, which greatly improves casting accuracy and molding quality.

中文翻译：

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叶轮铸件缺陷数值模拟及优化

数值模拟与实验研究类似，都是利用计算机进行的。3D打印是一项实验性研究，与模拟进行比较。叶轮的3D打印和精密铸造在工业场景中应用频繁。【摘要】：针对石膏型铸造铝合金叶轮成品率低的问题,应用ProCAST软件,采用魔幻三维建模、铸造模拟、参数优化等方法,提高叶轮的铸造成品率。结果表明，优化后的浇注系统结构更加合理，缩孔和缩松缺陷集中在冒口位置；凝固阶段铸件和外壳的最大应力值为2.71 MPa，远小于套管的应力极限；沿铸件的最大水平位移凝固完成后的X、Y轴分别为0.025mm和0.022mm，由于冒口的存在沿Z轴的最大位移为0.009mm，大大提高了铸造精度和成型质量。