铝合金减速器前盖差压铸造工艺优化

Optimization of Counter-pressure Casting process for Aluminum Alloy Reducer Front Cover

研究以铝合金减速器前盖为对象,通过数值模拟技术,对其差压铸造过程进行了仿真分析,并根据对模拟结果中的凝固时间,缩松缩孔缺陷以及二次枝晶间距SDAS值的分析,对铸造工艺参数进行了改进设计,并添加了冷却系统,获得了合理的方案。结果表明,铸件实现顺序凝固,缺陷消除,力学性能增强。

Taking the front cover of aluminum reducer as the research object,the differential pressure casting process was simulated and analyzed by numerical simulation technology.According to the analysis of the solidification time,shrinkage porosity and cavity defects and the SDAS value of secondary dendrite spacing in the simulation results,the casting process parameters were improved and the cooling system was added,and a reasonable scheme was obtained.The results show that the casting solidifies sequentially,defects are eliminated and mechanical properties are enhanced.