METHOD OF STEP-BY-STEP ROLLING Russian patent published in 2008 - IPC B21B1/42 

FIELD: process flows.

SUBSTANCE: method includes drafting of blank with two assemblies of rotating mutually transverse rollers of variable radius shifted relative to each other along the axis of rolling with development of deformation tapers on the blank. Set of rollers is continuously moved back-and-forth along the axis of rolling. Vectors of peripheral velocities of set of rollers are oppositely directed. Possible rolling by forward and reverse run with high rotational angles of each roller is ensured by ability of each set of rollers to start pressing after completion of pressing by another set of rollers and its relocation along the rolling axis to the distance equal the sum of shift values of roller sets and deformation tapers relative to each other.

EFFECT: improved performance and quality of rolled products.

4 dwg