METHOD OF RECOVERY AND HARDENING OF THE HOLES INNER SURFACES USING THE STATICO-PULSING INTERNAL ROLL BURNISHING Russian patent published in 2006 - IPC B23P6/00 B24B39/02 

FIELD: mechanical engineering; methods of recovery and hardenings of the metallic inner surfaces of the holes of details.

SUBSTANCE: the invention is pertaining to the field of mechanical engineering, in particular, to the method of recovery and hardenings of the inner surfaces of the holes by the statico-pulsing internal roll burnishing. The method includes the action on the surface of the hole by application normally to it of the static and periodic impulsive loadings using the processing device. The result of such an action on the surface of the hole is production of the peaked and plane-top macroprotrusions forming the relief of the being recovered surface. At that use the processing device with the replaceable diametrically located tools fixed on the radially located plungers, the mandrel with the arranged on its central longitudinal shaft striker and the waveguide made in the form of the rods. The plungers free butts are in contact with the having the conical shape surface of the waveguide, on the free butt of which there is the screw-type cylindrical spring of compression. The static loading is applied with the help of the mounted on the indicated plungers cylindrical springs of compression. The periodic impulsive loading is applied with the help of the striker acting upon the waveguide. For production of the peaked macroprotrusions use the tools made in the form of the wedges with the sharp angle, and for production of the planeprotrusions - the tools with the smooth cylindrical surface. The technical result of the invention is expansion of the technological capabilities of the statico-pulsing processing.

EFFECT: the invention ensures expansion of the technological capabilities of the statico-pulsing processing.

6 dwg, 1 ex