Profile ring-rolling process of fan case front for V2500 turbo engine

To form a near-net-shaped ring, a profile ring-rolling process was developed with an optimum ring-rolling operation, improved volume distribution in the axial direction, and metal flow estimation using 2.5D FEM. Moreover, to prevent the formation of defects during ring-rolling, a microstructural control process was developed to enhance ductility at elevated temperatures. Using these processes, Ti-6Al-4V fan case front rings for V2500 engine were manufactured. These rings had extremely high dimensional precision, and had no defects.