数值模拟在后桥壳体铸造工艺优化中应用.pdf

学兔兔 铸 造 Jan．2010 · 42 · FOUND只Y Vo1．59 NO．1 数值模拟在后桥壳体铸造工艺优化中的应用 袁书仓 ，张佳伟 ，汤明健 (1．中国一拖集团有限公司工艺材料研究所，河南洛阳471004；2．沈阳铸造研究所，辽宁沈阳110022) 摘要：采用三维造型软件对后桥壳体铸件进行造型，添加浇冒系统和铸型，用华铸CAE软件进行凝固过程的数值模 拟，通过比较不同工艺条件下的凝固过程中的液相动态分布过程，预测了形成缩孔缺陷的不同倾向，并对比了不同工 艺方案下铸件的缩孔分布及工艺出品率，对铸造工艺进行改进和优化，将改进后的铸造工艺应用于生产，既解决了铸 件的铸造缺陷，又缩短了生产制造周期。 关键词：后桥壳体；数值模拟；铸造工艺优化 中图分类号：TP391．9 文献标识码：A 文章编号：100l一4977(2010)O1—0042—04 Application of NumericaI Simulation in Foundry Technology Optimization of Rear Axle Housing YUAN Shu．cang’，ZHANG Jia—wei ，TANG Mingqian’ (1．Technology and Materials Research Institute，China Yituo Group Corporation Limited，Luoyang 471 004，He。nan，China；2．Shenyang Research Institute of Foundry，Shenyang 1 1 0022，Liaoning，China) Abstract：The rear axle housing casting was designed by using of three-dimensional modeling software together with gating and risering system and mould．The numericaI simulation on solidification process was carried out using Huazhu CAE software．Through the comparison of liquid phase dynamic distribution course during solidification process under different casting technicaI conditions。various tendencies of shrinkage defects forming can be forecasted．The shrinkage distribution and technicaI yield of the castings under different casting processes were compared。and the foundry technology was improved and optimized．As thus，defects of castings were eliminated and production period was shoflened by pu~ing forward improved technology into production． Key words：rear axle housing；numerical simulation；foundry technology optimization 铸造CAE技术是采用计算机