A wire electrode for the spark-erosive cutting of hard metal

Details A wire electrode for the spark-erosive cutting of hard metal A wire electrode for the spark-erosive cutting of hard metal

B - Operations, Transporting

23

H

B23H 1/04 (2006.01) B23H 7/08 (2006.01)

Patent

CA 2330736

The invention relates to a method and a wire electrode for the spark-erosive cutting of hard metal, whereby the wire electrode has a core and at least one outer coat surrounding the core and wearing during cutting. To avoid corrosion, as, for example, pitting, a wire electrode a.s chosen, the wearing outer coat of which consists of a metal or a metal alloy which is not nobler than the binder contained in the hard metal, and the metal or the metal alloy has an electrode potential which is less than or equal to ~0 = -0.28 V, referred to a standard hydrogen electrode.

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