Ọ bụrụ na e nwere oxides ma ọ bụ unyi n'elu nke workpiece na electrode nke etiti ugboro ntụpọ ịgbado ọkụ igwe, ọ ga-mmetụta ozugbo na kọntaktị iguzogide. A na-emetụtakwa nguzogide kọntaktị site na nrụgide electrode, ịgbado ọkụ ugbu a, njupụta dị ugbu a, oge ịgbado ọkụ, ọdịdị electrode, ...
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