为了减少由Ti-6Al-4V制成的轧制风扇机匣前部的锻件重量,开发了一种近终形(NNS)环轧工艺,它是通过优化环轧工艺,使冶金和几何过程得以改进而获成功的。为了轧制更高级的近终形环件还为生产具有复杂横截面的预成型件开发了一种锻造工艺。结果,近终形轧制环件的重量减少了55%。 In order to reduce the weight of the forging in the front portion of the rolling fan casing made of Ti-6Al-4V, a near-net shape (NNS) ring rolling process has been developed by optimizing the ring rolling process to enable metallurgy and geometrical processes Improved and successful. In order to roll the more advanced near-final ring, a forging process has also been developed for the production of preforms with complex cross-sections. As a result, the weight of the near-net-shaped ring was reduced by 55%.