Forgings are deformed during the cold forging process and are work-hardened so that the forging die is subjected to a large load. For this reason, high strength forging dies are required, with hard lubricating films to prevent wear and bonding. In addition, intermediate annealing is required to prevent cracking of the blank to ensure the required deformation capacity.

The purpose of casting deformation of titanium and titanium alloys is, firstly, to obtain a design that meets the requirements of

Large forgings are generally used in the key parts of large machinery. Due to the poor working environment and complex and variable forces, large forgings have high quality requirements in the production process. Large forgings are forged directly from ingots. In the production of large forgings, even with advanced metallurgical technology, there are inevitably micro-cracks, looseness, shrinkage, segregation and other defects inside the ingot, which seriously affect the quality of the forgings. In order to eliminate these defects and improve the quality of forgings, the forging process must be improved and reasonable forging process parameters must be selected.