DEVICE FOR RESTORATION OF METAL INNER SURFACES BY STATIC PULSE ROLLING Russian patent published in 2006 - IPC B23P6/00 B24B39/02 

FIELD: devices for restoration and hardening of metal inner surfaces of holes of parts.

SUBSTANCE: proposed device has mandrel, two deforming tools which are diametrically opposite and are secured on plungers located radially, waveguide and striker located along central longitudinal axis of mandrel. Striker is used for acting on waveguide for transmission of periodic pulse load. Mounted on each plunger is helical cylindrical compression spring for normal application of static load to surface being treated. Waveguide has taper surface which is engageable with free end faces of plungers. Free end face of waveguide is provided with helical cylindrical compression spring. Deforming tools are changeable; one of them is made in form of wedge at acute angle for obtaining acute vertex macro-projections and other tool has smooth cylindrical surface at radius equal to radius of holes being treated for forming embossed surface.

EFFECT: extended functional capabilities.

6 dwg, 1 ex