航空钛合金锻造技术的研究进展

Research development on forging technology for aviation titanium alloys

综述了近年来国内外航空钛合金锻造技术的研究进展,介绍了等温锻造技术、精密辗轧技术、大型复杂构件整体成形技术、锻造工艺模拟等国内外研究情况,并讨论了航空钛合金锻造技术后续的研究方向。等温锻造技术应深入研究构件热处理技术、模具设计与制造技术、加热与润滑防护技术;精密辗轧技术应深入研究薄壁环件精确环轧技术、自动控制技术、轧制胀形用工装与模具设计技术、设备控制软件开发技术;大型复杂构件整体成形技术应深入研究复杂构件的增量加载精密模锻技术、多向精密模锻技术、大型锻件组织性能均匀性控制技术及复杂结构件精密制坯技术;同时,应系统开展锻造工艺与装备数字化技术的研究与推广应用,建立基于数值模拟技术的锻造工艺设计方法。

The research development on forging technology for aeronautic titanium alloys in recent years was reviewed. Then, the developments of isothermal forging technology, precision rolling technology, integral forming technology for large complex component and forging process simulation were introduced, and the future research directions of forging technology for aviation titanium alloys were also discussed. In the isothermal forging processing, structural component heat treatment, die design and manufacture and heating and lubrication protection technologies need to he investigated intensively. In the precision rolling mill processing, thin - wall ring precision ring rolling technology, automatic control technology, ring expansion fixture and die design technology and operating device software development technology need to be further studied. In the large - scale complex structural component integral forming technology, incremental load precision die forging technology, multi - direction precision die forging technology, control technology of microstructure and property for the large - scale forging piece and precision forming technology of complex structural component need to be further researched. Simultaneously, the research, promotion and application of forging processing and equipment digitalization need to be carried out, and the forging processing design method based on numerical simulation should be established.