METHOD FOR MANUFACTURING ELECTRODE FOR ELECTRICAL DISCHARGE SURFACE TREATMENT AND ELECTRODE FOR ELECTRICAL DISCHARGE SURFACE TREATMENT

摘要

PROBLEM TO BE SOLVED: To manufacture an electrode containing easily oxidized metal powder without inducing oxidation in the manufacture process and to deposit a coating film by electrical discharge surface treatment. SOLUTION: The electrical discharge surface treatment is carried out by generating pulse discharge between a green compact electrode prepared by compacting metal powder, metal compound powder or ceramic powder and a work and depositing a coating comprising the electrode material or a substance produced by the reaction of the electrode material with the discharge energy on the work surface. The method for manufacturing the electrode includes the steps of: pulverizing the predetermined electrode material in a mixed state with a solvent; mixing wax as a binder into the mixture comprising the electrode material and the solvent pulverized in the first step; drying and granulating the mixture in an inert gas atmosphere; and forming the green compact electrode by using the granulated powder. COPYRIGHT: (C)2005,JPO&NCIPI