INVESTIGATION OF FUNCTIONAL SURFACE ROUGHNESS PARAMETERS ON STEEL SURFACES MACHINED BY ELECTRO-DISCHARGE MACHINING

Authors

DOI:

https://doi.org/10.20998/2078-7405.2025.103.07

Keywords:

electrical discharge machining (EDM), surface texture, functional roughness parameters, topological map

Abstract

The surface quality produced by electrical discharge machining (EDM) nowadays allows these surfaces to be used directly as functional surfaces—often without the need for post machining—such as in the production of plastic moulding tools. This highlights the importance of surface quality assessment not only through traditional amplitude parameters but also through so-called functional roughness parameters. This paper presents the results of studies in which EDM machined tool steels were investigated using functional surface roughness parameters. Such parameters effectively characterize the operational behaviour and applicability of machined surfaces.

Author Biographies

Maros Zsolt , University of Miskolc, Hungary

Associate Professor, Institute of Manufacturing Science, University of Miskolc, Department of Production Engineering, Miskolc - Egyetemváros, Hungary

Kun-Bodnár Krisztina, University of Miskolc, Hungary

Associate Professor, Institute of Manufacturing Science, University of Miskolc, Department of Production Engineering, Miskolc - Egyetemváros, Hungary

References

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S.H. Lee – X.P. Lee: Study of the effect of machining parameters on the machining characteristics in electrical discharge machining of tungsten carbide, Journal of Materials Processing Technology, Vol.115 (2001), pp. 344-358

D. Bańkowski – P. Młynarczyk: Influence of EDM Process Parameters on the Surface Finish of Alnico Alloys. Materials (Basel). 2022, 15(20):727, doi: 10.3390/ma15207277.

ISO 13565-2:1996 – Surface texture: Profile method — Surfaces having stratified functional properties

Zs. Maros – K. Kun-Bodnár, Investigation of Electro Discharge Machining of Tool Steels Based on the Roughness of the Machined Surfaces, Cutting & Tools in Technological System, 2023, Edition 99 pp. 46-57

R. Horváth – Á. Czifra – Á. Drégelyi-Kiss Ágota, Effect of conventional and non-conventional tool geometries to skewness and kurtosis of surface roughness in case of fine turning of aluminum alloys with diamond tools, International Journal of Advanced Manufacturing Technology, 78:(1-4) pp. 297-304. (2015)

D.J. Whitehouse: Handbook of surface metrology, Inside of Physics Publ., Bristol (1994), p. 944

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Published

2025-12-15

Issue

No. 103 (2025): 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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