Theoretical basis of forming forging impellers of blade machines in multichannel stamps

It is proposed the classifier of solid stamped impellers used in gas and hydraulic impeller machines produced by hoy (semi-hot) stamping, which were produced in aviation industry. Article recounts information about research and development of schemes and structures of the multisectional stamps, non-dismountable (tyre supported) and dismountable wheels after forming. Extruding insertions are being pulled from interblade channels. It is considered the principle of constructing theoretical cylindrical lattices of channels for multi-split stamps, due to which it is possible to calculate the forces of disclosure in stamps’ channels and rotational forces of the compound matrixes during extrusion.