Modeling of Mold Filling and Solidification in Lost Foam Casting

查看全文 作　　者：Fengjun LI, Houfa SHEN and Baicheng LIUDepartment of Mechanical Engineering, Tsinghua University, Beijing 100084, China

出　　处：《Journal of Materials Science & Technology》索引2003年第19卷第5期,共3页

基　　金：supported by the Significant Project of the National Natural Science Foundation of China(59990470-3);the Significant Fundamental Research Development&Planning of China(G2000067208-3). 摘　　要：Based on the characteristics of the lost foam casting (LFC) and the artificial neural network technique, a mathematicalmodel for the simulation of the melt-pattern interface movement during the mold filling of LFC has been proposed andexperimentally verified. The simulation results are consistent with the experiments in both the shapes of melt frontand filling sequences. According to the calculated interface locations, the fluid flow and the temperature distributionsduring the mold filling and solidification processes were calculated, and the shrinkage defect of a lost foam ductileiron casting was predicted by considering the mold wall movement in LFC. The simulation method was applied tooptimize the casting design of lost foam ductile iron castings. It is shown that the model can be used for the defectsprediction and for casting design optimization in the practical LFC production. 关键词：数值模拟人工神经网络铸造工艺建模凝固 LFC 损失泡沫浇注

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Modeling of Mold Filling and Solidification in Lost Foam Casting

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