DEVICE FOR BENDING PIPES Russian patent published in 2018 - IPC B21D9/05 

FIELD: technological processes.

SUBSTANCE: invention relates to the field of metal forming and can be used in the manufacture of bent parts from thin-walled pipes. Device contains fixed support rollers, booster device for loading the pipe with axial preload and a shaft with a bending disc mounted on the shaft with a key; a carrier with a keyway, mounted on the shaft of the bending disc.

EFFECT: force of the axial preload from the booster device increases, as a result of which the thinning of the outer wall of the pipe decreases.

1 cl, 1 dwg