METHOD OF IMPACT ROLLING Russian patent published in 2011 - IPC B24B39/00 

FIELD: process engineering.

SUBSTANCE: invention relates to machine building, particularly, to surface hardening devices. Billet is revolved about its axis. Multi-element rolling tool is fed in lengthwise direction and revolves about its acis. Said multi-element tool comprises disk-like body with central bore and flat springs arranged radially along its edges. Deforming indenters are arranged on ends of flat springs. On every next flat spring, deforming indenter is located with lengthwise shift of 0.75·l_hole, where l_hole is diametre of hole punched by indenter. Flat springs are made with shoulders to them to be rigidly secured, by compensation bar, on the case with the help of face plates fitted on each face of the case. Flat springs part fixed in the case feature wedge-like shape and are oriented on case peripheral surface in lengthwise direction.

EFFECT: expanded process performances and higher efficiency.

11 dwg, 1 tbl, 1 ex