带内、外法兰的Waspaloy合金异形机匣环锻件整体精密成形工艺

Integrated precision forging process on shaped case ring forgings of Waspaloy alloy with inner and outer flanges

介绍了一种带内、外法兰的Waspaloy合金异形机匣环锻件整体精密成形工艺。采用难变形低塑性材料组织均匀性表面控制技术,Waspaloy合金带内、外法兰大型异形环坯制备及Waspaloy合金大型复杂异形环件整体精密轧制的关键技术,结合全流程仿真,制定出工艺方案,并确定了锻造、热处理工艺参数,成功生产出带内、外法兰的Waspaloy合金异形机匣环锻件。使用该技术生产的异形机匣锻件的内、外径异形面成形情况较好,各尺寸能够满足交付要求,高倍组织均匀,性能指标满足SAE AMS 5707—2017要求,减少了贵重金属原材料投入,降低了成本,提高了机匣的均匀性及整体性能水平。

A kind of integrated precision forging process of shaped case ring forgings for Waspaloy alloy with inner and outer flanges was introduced.Then,through the surface control technology of microstructure uniformity for difficult-to-deform and low-plasticity materials and the key technologies of the preparation of large shaped ring blank for Waspaloy alloy with inner and outer flanges and the integrated precision rolling of large and complex shaped ring parts for Waspaloy alloy,combined with the full process simulation,the process plan was worked out,and the parameters of forging and heat treatment were determined to produce shaped case ring forgings for Waspaloy alloy with inner and outer flanges successfully.Therefore,the formed special profiles of inner and outer diameters for shaped case ring forgings manufactured by this technology are good,the dimensions meet the usage requirements,the microstructure is uniform,and the performance indexes meet the requirements of SAE AMS 5707—2017.Meanwhile,the precious metal raw material is reduced to input,the cost is decreased,and the uniformity and the overall performance of case are improved.