INVESTIGATION OF ELECTRO DISCHARGE MACHINING OF TOOL STEELS BASED ON THE ROUGHNESS OF THE MACHINED SURFACES

Authors

DOI:

https://doi.org/10.20998/2078-7405.2023.99.04

Keywords:

electrical discharge machining, functional roughness parameters, copper, graphite electrodes

Abstract

In electro discharge machining (EDM or spark erosion) the roughness of the machined surface plays a very important role in the applicability of the process. This paper deals with a comparative study of the electro discharge machining of tool steels based on the roughness characteristics of the machined surfaces. Another aim of the research is to investigate which tool materials (electrode material, copper, or graphite) are most effective to achieve the best possible surface microgeometry. Based on the data of the performed cutting experiments and the subsequent measurements, conclusions will be drawn regarding the machinability of the tested tool steels and the applicability of the electrode materials used.

Author Biographies

Maros Zsolt, University of Miskolc, Hungary

Born in 1957. He graduated in mechanical engineering from the Technical University of Heavy Industry in 1981. From 1986 to 1996 he worked at the University of Miskolc as assistant professor and then assistant professor. In 1993 he received the degree of Doctor of Science. Between 1996-2004 he was Head of the Department of Production Technology at the Bay Zoltán Research Institute. Since 2004 he is again lecturer at the University of Miskolc. From 2013 to 2017 he was Deputy Dean of the Faculty of Mechanical Engineering and Information Technology. His fields of expertise are abrasive waterjet technologies, precision machining of non-ferrous metals, CAD/CAM methods and manufacturing systems. Associate Professor of the Institute of Manufacturing Science, University of Miskolc, Department of Production Engineering, Miskolc - Egyetemváros, Hungary

Kun-Bodnár Krisztina, University of Miskolc, Hungary

Born in 1983. He graduated in 2007 from the Faculty of Mechanical Engineering and Information Technology, University of Miskolc, Faculty of Engineering Management, Machine Manufacturing Technology and Faculty of Mechanical Engineering, Quality Assurance. Between 2007-2010, he was a doctoral student and then assistant professor. Specialisation: abrasive waterjet cutting. Associate Professor of the Institute of Production Science, University Miskolc, Hungary

Fekete Vivien, University of Miskolc, Hungary

Student University of Miskolc, Hungary, Faculty of Mechanical Engineering and Informatics, Institute of Manufacturing Science

References

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Published

2023-11-21

Issue

No. 99 (2023): Cutting and Tools in Technological Systems

Section

Mechanical processing of materials, the theory of cutting materials, mathematical and computer simulation of machining p

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