METHOD OF STEPPING ROLLING Russian patent published in 2009 - IPC B21B1/42 

FIELD: metallurgy.

SUBSTANCE: method includes consecutive deformation of blanks by couples of rollers, reciprocative transportation of rollers axis and blank lengthways the rolling axis at increasing of workpiece transfer into the side of finished profile over movement of swivel axis of rollers into counter side, drive of forward cone of deformation, long-term rolling process, roll to backward cone of deformation. Roll to backward cone of deformation with feeding equal to feeding at established procedure of stepping rolling without application of special setting devices is provided ensured by that roll out of forward cone of deformation of the further blank is started after roll to part of backward cone of deformation of preliminary blank.

EFFECT: productivity improvement and reduction of manufacturing equipment weight.

1 dwg