METHOD FOR FINISHING AND HARDENING FLAT SURFACES Russian patent published in 2024 - IPC B24B39/06 

FIELD: various technological processes.

SUBSTANCE: invention relates to finishing and hardening of flat surfaces of machine parts and structural elements. Billet is fed in lengthwise direction while the finishing-hardening device is rotated. Device for finishing and hardening treatment is used, comprising a separate rotating drive disc, on which at least two working tools are mounted at the same distance from its geometric centre, each of which is made in the form of a disk with an axisymmetric groove and deforming balls separated by a separator, moving along the said axisymmetric groove of the disk and exerting pressure on the surface of the processed billet. Axis of rotation of the drive disk is displaced relative to its geometric centre by the value of eccentricity. Working tools perform free rotation and longitudinal movement relative to their own axis.

EFFECT: as a result, the quality of the processed surface is improved.

1 cl, 3 dwg