Product introduction

China's independently developed C919 passenger aircraft was launched in November 2, 2015 at Shanghai China commercial flying company, which began in 2008 and first flew in 2015. The front fuselage, the middle fuselage, the rear observation frame, the skylight window frame and the hinge 7075-T73 forgings are made.

Technological process

Introduction of equipment

6000 ton free forging press

The free forging is 4 tons, with a maximum width of 2.5m, a maximum length of 10m, a forging ring of 3.9m, and a maximum diameter of forged tube of 700 x 40 x 2200.

10000 ton multi direction die forging press

Die forging projection area of 0.33 square meters (aluminum), the maximum length of 2m, width 1m, height 0.8m.

30000 ton die forging press

Die forging projection area of 2 square meters, 1.2 square meters (aluminum) (titanium, steel), maximum length 9m, maximum width 2.5m, height 1m.

5m NC diameter axial ring rolling mill

The diameter is 700 to 5000mm (height below 200mm) and the height is 80 to 800mm (below 2500mm).