METHOD FOR ELECTRIC EROSION TREATMENT OF ROTOR (OR NOZZLE UNIT) OF TURBINE AND ATTACHMENT FOR PERFORMING THE SAME Russian patent published in 2004 - IPC

FIELD: technological processes, namely treating metallic blank by means of high-frequency electric current with use of electrode as tool. SUBSTANCE: method comprises steps of receiving (according to drawing of part) electronic- digital model of interblade ducts defining profile of turbine blade; making in machine tool for electric erosion treatment inlet and outlet electrodes designed for making inlet and outlet semiducts; placing inlet electrodes in such a way that they are oriented in different directions relative to outlet electrodes; at first making sample; then making article with use of the same electrodes. Attachment to piercing electric-erosion machine tool includes body and electrodes secured to it. Body is in the form of bracket having thrust bearing, strut and crosspiece for supporting electrodes. EFFECT: enhanced effectiveness of process of electric erosion treatment for making high-accuracy articles. 14 cl, 10 dwg, 1 ex