PETAL TYPE DISC Russian patent published in 2002 - IPC

FIELD: tools for abrasive strengthening of end surfaces of parts. SUBSTANCE: disc includes body, mounted in it sections with working petals having end cylindrical surface and members for controlling rigidity of said sections mounted between them with possibility of motion. Said members are in the form of flat wedges mounted in such a way that their thickness increases towards end working surface of disc. Petals have different eccentricity values and different rain size. Petal with larger eccentricity value have less grain size and cone surface. Petals may be cemented in pairs; microspheres may be secured to their back surface. EFFECT: shortened time period of working cycle due to combined abrasive working and strengthening processes. 2 cl, 3 dwg _