Importance

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Abstract

A tool-electrode for machining an imprint in a conductive part by sinking-die type electrical-discharge machining. It includes a conductive body having lower and upper opposite surfaces, two opposite main lateral surfaces, lower and upper areas superposed according to a die-sinking direction of the tool-electrode, the lower area comprising the lower surface and a portion of the main lateral surfaces, the upper area including the upper surface and the other portion of the main lateral surfaces. The body is provided, at least in the lower area, with a plurality of openings selected from among channels or slots; a channel is an opening which opens onto at least one of the upper and lower surfaces; a slot is an opening which opens onto the lower surface and onto the two main lateral surfaces.

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First Claim