COMBINATION TYPE GRINDING WHEEL Russian patent published in 2000 - IPC

FIELD: abrasive working of blanks. SUBSTANCE: wheel includes large-grain abrasive layer rigidly secured to wheel body and movable inserts mounted in body and having small-grain abrasive layers. Inserts are joined with mechanism for their radial motion. There is annular cavity in body of wheel. Mechanism for radially moving inserts is in the form of springs made of material with thermomechanical memory. Springs are arranged in annular cavity filled with heated or cooled air. Wheel also includes device for supplying air. EFFECT: simplified design of combination type grinding wheel. 2 cl, 4 dwg