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大型铝合金基座铸件数值模拟研究
Research on Numerical Simulation of Large Aluminum Alloy Base Casting
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- DOI:
- 作者:
- 范李鹏 姬艳硕 余国康 冯港雯 徐信锋 王宝兵 杨剑 肖三楚
FAN Lipeng;JI Yanshuo;YU Guokang;FENG Gangweng;XU Xinfeng;WANG Baobing;YANG Jian;XIAO Sanchu
- 作者单位:
- 上海航天精密机械研究所 上海交通大学材料科学与工程学院
Shanghai Spaceflight Precision Machinery Institute,Shanghai 201600,China;School of Materials Science and Engineering,Shanghai Jiaotong University,Shanghai 200240,China
- 关键词:
- 数值模拟 铝合金 结构件 铸造工艺
numerical simulation aluminum alloy structural parts casting process
- 摘要:
- 大型复杂结构铝合金基座铸件内部质量要求高,采用ProCAST数值模拟软件,对大型铝合金基座铸件进行数值模拟以优化铸造工艺。结果表明,采用3个直浇道、12个内浇道的浇注系统并不能很好的成形大型铝合金基座铸件,常伴有大面积的冷隔。将浇注系统改为4个直浇道、16个内浇道的浇注系统后成形良好。大型铝合金结构件基座的最佳浇注温度为730℃,浇注时间为100 s,在该工艺条件下,铸件成形性好,内部质量优异。
Large,complex structure of aluminium alloy base high quality demand of castings,using numerical simulation software ProCAST,large aluminum alloy base castings were numerically simulated to optimize the casting process.The results show that the casting system with 3 sprues and 12 ingates cannot obtain good large aluminum alloy base castings well,and there is often a large area of cold lap.The gating system with 4 sprues and 16 ingates can obtain good castings after adjustment.The optimum pouring temperature and pouring time of large aluminum alloy structure base are 730℃and 100 s.Under these conditions,the castings have good formability and excellent internal quality.