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Relationship Between Wall Thickness and Erosion Depth of Thin Walled Electroformed EDM Electrodes Produced from RP Models

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Abstract

Metal filled thin walled electroformed EDM electrodes, fabricated using RP models, have been shown to be an effective route to producing die sink electrodes. However, due to the nature of electroforming, there are certain limits to the maximum depth of erosion of cavities that can be achieved, this being related to the electrode wall thickness. This initial study examines the relationship between the electrode wall thickness and depth of erosion.