Abstract

Abstract In order to gain new insights in electrical discharge machining process (die sinking EDM, wire EDM, EDM drilling variants), especially in meso-micro scale sinking EDM (area: 10mm 0.1mm), high-speed imaging (up to 500’000fps) of the process is combined with electrical process signals in a time synchronised manner, for quasireal erosion conditions. The process understanding derived by correlating the visual and electrical information of the sparks and gap region along with the discharge craters enable next level of adaptive process control in high precision EDM.

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