Production method of honeycomb die-forming electrical discharge machining electrodes and production method of honeycomb dies.

摘要

When producing an electrical discharge machining electrode (3) for use in forming a honeycomb-making die, a plurality of grooves (4) are cut in an electrode material by a grinding wheel (1) formed with a reverse tapered shape in which the grinding width is gradually widened toward its periphery. Subsequent to the cutting of a groove, the grinding wheel and the electrode material are relatively moved by an integral number of pitches in a direction perpendicular to the grinding direction, and the grinding surface of the grinding wheel is dressed after a desired number of such pitch movements to narrow the grinding width. Thereby a plurality of projecting electrode portions (5) are formed between the electrode grooves and the thickness of the projecting electrode portions are controlled so as to increase continuously or stepwise.