Abstract
Electrical Discharge Machining (EDM) is used in cutting special steel accurately; in this paper the effect of electrode material will be studied to avoid the surface cracks. Two grades of tool steels are chosen as test materials, DIN 1.2080 and DIN 1.2379 they are a high carbon, high chromium alloy tool steels with excellent resistance to wear and abrasion four types of EDM electrode material has been chosen, Dura graph 11, Dura graph 15, Poco graphite “EDM-C 3”, and copper electrodes.
Highlights
Electrical Discharge Machining (EDM) is a cost-effective way of shaping complex geometry materials with high accuracy, and is widely used in the hardmetal industry [1]
Graphite is widely used as electrode material in EDM; this is due to its good electrical and thermal properties, along with its machinability [2,3]
Copper, Dura graph 11, Dura graph 13, and copper-infiltrated-graphite (Poco EDM-C3) electrodes were used to compare their effects on the surface of DIN 1.2080 and DIN 1.2379 corresponding to EDM properties
Summary
Electrical Discharge Machining (EDM) is a cost-effective way of shaping complex geometry materials with high accuracy, and is widely used in the hardmetal industry [1]. Graphite is widely used as electrode material in EDM; this is due to its good electrical and thermal properties, along with its machinability [2,3]. Copper, Dura graph 11, Dura graph 13, and copper-infiltrated-graphite (Poco EDM-C3) electrodes were used to compare their effects on the surface of DIN 1.2080 and DIN 1.2379 corresponding to EDM properties.
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