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利用铸造仿真模拟软件Flow-3D,对一种铝合金输油管接头零件的铸造工艺中可能出现的问题进行仿真优化,改进工艺,消除缺陷。通过对仿真结果的分析,发现在输油管接头的法兰部位出现了气体聚集现象,通过采取增加出气孔等优化工艺措施,得到了较好的充型结果。凝固模拟显示铸件无缩孔等凝固缺陷,表明优化后的工艺合理可行。利用该工艺进行了砂型铸造试制,铝合金输油管接头铸件的缺陷基本消失。
The casting simulation software Flow-3D is used to simulate and optimize the problems that may occur in the casting process of an aluminum alloy pipe joint part to improve the process and eliminate the defects. Through the analysis of the simulation results, it is found that the phenomenon of gas accumulation occurs at the flange portion of the oil pipe joint, and the better filling result is obtained by adopting the optimization process measures such as increasing the air outlet. The solidification simulation shows that the casting has no defects such as shrinkage defects, which shows that the optimized process is reasonable and feasible. The process of sand casting trial production, aluminum alloy pipe fittings casting defects disappeared.