镍基高温合金旋压成形技术研究现状

Research Status of Spinning Forming for Ni-Based Superalloy

镍基高温合金薄壁构件是高端装备的核心零部件,旋压成形是实现此类零件高精度、高性能制造最有效的方法之一。从可旋性、旋压成形质量、微观组织演变及形/性一体化控制等方面对镍基高温合金旋压成形技术研究进展进行综述。分析了镍基高温合金流动旋压时不同坯料初始组织和成形温度条件下的可旋性;总结了旋压成形参数对宏观成形质量的影响规律;阐述了筒形件室温流动旋压及热流动旋压成形时微观组织演变机制;探讨了热流动旋压成形时的形/性一体化控制方法。

Ni-based superalloy components with thin-walled are the core parts of high-end equipment.Spinning is the most effective method to manufacture these parts with high accuracy and excellent performance.The spinning technology of Ni-based superalloy was comprehensive discussed by analyzing the spinnability,macro-forming quality,microstructural evolution and shape/property integrated control.The influences of initial microstructure of the blank and the forming temperature on the spinnability during flow forming process were analyzed.The influences of the process parameters on macro-forming quality of spun parts were summarized.The microstructural evolution mechanisms during flow forming at room temperature and hot flow forming were discussed.The integrated control method of shape/property of spun parts during hot flow forming was explored.