摘要 |
Generating pulsed discharge between an end surface of an electrode and an end face portion of a metallic plate, to attrite the electrode, to form in the end surface of the electrode a recess conforming to a shape of the end face portion of the metallic plate, having the electrode making a relative movement in a direction perpendicular to a lateral side of the metallic plate, generating pulsed discharge between an internal side face of the electrode recess and a lateral face of the end face portion of the metallic plate, to form an auxiliary coat on the lateral face of the end face portion of the metallic plate, and generating pulsed discharge between a bottom face of the electrode recess and a top face of the end face portion of the metallic plate, to form a cladding layer on the end face portion of the metallic plate.
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