AbstractThe main superalloy forgings required for gas turbine engines (engine discs and blades) are currently made by well established processes. These‘conventional’techniques have been developed to a high degree of effectiveness, but further advances are still required. The achievement of controlled microstructures and the avoidance of defects necessitates strict control of the forging process. Some ways of improving control beyond the present capability are indicated; these will be largely through increased automation and improved computer modelling. If achievable, such improvements could lead to great changes in non–destructive test procedures. Various less conventional forging processes are considered, and are grouped according to their main characteristics: size, speed, temperature, and environment. Some specialized techniques are likely to be required for the production of newer materials, whether superalloys or alternative materials. It is probable, however, that the widely used forging processes of the future will be recognizably derived from those of the present.MST/261