METHOD OF SPINNING PROCESSING OF AXISYMMETRIC SHELLS Russian patent published in 2024 - IPC B21D22/16 

FIELD: metal forming.

SUBSTANCE: invention relates to metal forming and can be used in production of axially symmetric shells by spinning. Blank with face ledge is fitted on mandrel and locked by pressing against face ledge. Blank is rolled by deforming rollers in one or several passes. Rollers with front working surface located at an angle of inclination and with rear working surface are used. Rollers are installed with different gaps between the top of the roller and the mandrel and with different axial displacements. Rear working surface of deforming rollers is made in the form of two rear conical surfaces coupled with each other and with front working surface along radius. First rear conical surface from the top of the roller has an inclination angle and a length which is less than the angle of inclination and the length of the second rear conical surface.

EFFECT: higher quality of machined surface, wear resistance of deforming rollers and mandrel, as well as production efficiency of shells.

6 cl, 3 dwg, 1 ex