Investigation Into Application of Electrodischarge Machining as Steel Surface Modification Technique

D. I. PantelisManufacturing Technology Division, Department of Mechanical Engineering, National Technical University of Athens, 42 28th October Avenue, 10682 Athens, Greece and Dr Dumas and Dr Jeandin are at the Ecole des Mines de Paris, Centre des Materiaux P. M. Fourt, BP 87, 91003 Evry Cedex, France.

N. M. VaxevanidisManufacturing Technology Division, Department of Mechanical Engineering, National Technical University of Athens, 42 28th October Avenue, 10682 Athens, Greece and Dr Dumas and Dr Jeandin are at the Ecole des Mines de Paris, Centre des Materiaux P. M. Fourt, BP 87, 91003 Evry Cedex, France.

A. E. HoundriManufacturing Technology Division, Department of Mechanical Engineering, National Technical University of Athens, 42 28th October Avenue, 10682 Athens, Greece and Dr Dumas and Dr Jeandin are at the Ecole des Mines de Paris, Centre des Materiaux P. M. Fourt, BP 87, 91003 Evry Cedex, France.

P. DumasManufacturing Technology Division, Department of Mechanical Engineering, National Technical University of Athens, 42 28th October Avenue, 10682 Athens, Greece and Dr Dumas and Dr Jeandin are at the Ecole des Mines de Paris, Centre des Materiaux P. M. Fourt, BP 87, 91003 Evry Cedex, France.

M. JeandinManufacturing Technology Division, Department of Mechanical Engineering, National Technical University of Athens, 42 28th October Avenue, 10682 Athens, Greece and Dr Dumas and Dr Jeandin are at the Ecole des Mines de Paris, Centre des Materiaux P. M. Fourt, BP 87, 91003 Evry Cedex, France.

Abstract

The feasibility of surface hardfacing/alloying of tool steels using the EDM process has been studied. By this technique, material transfer from the tool electrode (made of sintered Fe–WC) to the steel substrate took place, leading to the formation of a surface alloyedlayer consisting of antiwear constituents (e.g. undissolved carbides). The parameters of the EDM process have been optimised and the microstructure and surface properties (roughness, microhardness, and wear resistance) of the treated material studied. Finally, the industrial potential of this technique is discussed.

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Investigation Into Application of Electrodischarge Machining as Steel Surface Modification Technique

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Investigation Into Application of Electrodischarge Machining as Steel Surface Modification Technique

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