双驱动重卡用铸钢桥壳的工艺设计与改进

Design and Improvement of Casting Process of Cast Steel Bridge Shell for Double Drive Heavy Truck

双驱动重卡用铸钢桥壳具有外形尺寸大、结构复杂、性能要求高的特点,导致其铸造工艺设计难度大和试制成本高的问题。为了降低产品试制成本,利用三维造型软件(Pro/E)和铸造仿真模拟软件(华铸CAE)对该产品进行了铸造工艺可行性分析。首次试制表明,数字化模拟与工业生产具有高的吻合度,避免了工艺设计中过度依赖技术人员经验的问题。针对工业生产过程中各种不确定因素带来的铸造缺陷问题进行了工艺优化,再次试制表明,首次试制中暴露出来的缺陷问题得到了很好的解决。检测结果表明,铸件的性能完全达到了双驱动重卡用铸钢桥壳的技术条件要求。

The cast steel bridge shell for double drive heavy truck has the characteristics of large size,complex structure and high performance requirements,which leads to difficult casting process design and high trial production cost.To reduce the trial cost of the product,the three-dimensional modeling software(Pro/E)and the casting simulation software(Inte cast)were used to analyze the feasibility of the casting process.The first trial production showed that the digital simulation and industrial production have a high degree of coincidence,avoiding the problem of excessive dependence on the experience of technical personnel in the process design.The casting process was optimized based on the casting defects caused by various uncertain factors in the industrial production process,and the trial production result indicated that the defects exposed in the first trial production are eliminated,and the properties of the casting completely meet the requirements of cast steel bridge shell for double drive heavy truck.