铝合金箱体砂型铸造数值模拟及工艺优化

Numerical Simulation and Process Optimization of Sand Casting Aluminum Alloy Box

分析了铝合金箱体结构和工艺特点,选用砂型铸造,对箱体进行了浇注系统的设计。运用AnyCasting软件对铝合金箱体砂型铸造过程进行了数值模拟,分析了铸件缺陷产生的位置和原因。在此基础上对工艺方案进行了改进,通过优化浇注系统,合理设置冷铁和冒口,减少了铸件缺陷,最终得到了一套完整合理的铸造工艺方案。

The structure and technological characteristics of aluminum alloy box were analyzed.The gating system of sand casting was designed.The casting process of aluminum alloy box body was simulated by AnyCasting software,and the position and reason of casting defect were visualized.Based on the simulated results,process scheme was modified by improving gating system,setting cold iron and riser reasonably to reduce the casting defects.Finally,an optimized casting process scheme was designed sucessfully.