METHOD OF TREATMENT OPENINGS Russian patent published in 2002 - IPC

FIELD: mechanical engineering, grinding opening of mechanism elements. SUBSTANCE: rotating workpiece is grinded with flexible tool applied with abrasive material. The tool is made of diameter larger than diameter of the opening being treated. The tool is made of porous material which is impregnated with cutting fluid. Before pretreatment the tool is flexibly deformed and the cutting fluid in a hard aggregative state rigidly fixes the shape of the tool. Before finishing treatment the cutting fluid is turned into a fluid state returning the tool into elastic state to provide tight contact and supplying cutting fluid to the cutting zone. Above mentioned actions allow us to cut off microwaves and to correct error of the opening shape. EFFECT: enhanced quality of treatment. 1 dwg