Ring rolling machine forging process principle: the structural performance of forgings is directly related to the service life and reliability of the aircraft

Forging is a process of changing the mechanical properties and internal structure of metal forgings through plastic deformation, which can improve the bearing and impact resistance of the parts themselves. In the aircraft body and engine structure, the important parts of the load-bearing and force-transmitting structures generally need to be forged. In aero-engines, aeronautical forgings are currently mainly used in the four major components of fans, compressors, turbines, and combustion chambers. They mainly play the roles of containment, connection, support, and sealing, and are very important parts.

Compared with casting, forging can effectively eliminate problems such as porosity and crystallization. Due to the manufacturing process, forged metal materials inevitably have defects such as pores, shrinkage cavities and dendrites. Under the action of pressurized equipment and tools (molds), the billet or ingot will produce partial or complete plastic deformation. After processing, its shape and size are stable, the structure is uniform, and the fiber structure is reasonable. Comprehensive mechanical properties are better.

Forging can be divided into free forging, die forging and ring rolling according to the process, among which the ring rolling technology has become the only process method for preparing super large ring forgings. Ring rolling is an advanced technology that produces continuous local plastic deformation of ring parts with the help of ring rolling machine. Ring rolling can greatly reduce the tonnage and investment of equipment, and has significant advantages such as small vibration and impact, energy saving and material saving, high production efficiency and low production cost. Therefore, with the large investment in ring rolling machines, ring rolling technology is widely used.