Discharge Energy as a Key Contributing Factor Determining Microgeometry of Aluminum Samples Created by Electrical Discharge Machining

The aim of this study is first to determine the effect of the discharge energy on the surface microgeometry of aluminum samples created by electrical discharge machining (EDM). Secondly, an additional purpose is to demonstrate the differences between the geometric multiscale methods: length-, area-s...

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Autores principales:	Katarzyna Peta, Michał Mendak, Tomasz Bartkowiak
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	surface topography electrical discharge machining multiscale analysis Crystallography QD901-999
Acceso en línea:	https://doaj.org/article/ded7bb7b649541ea9e3a47c22f3b01ad
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spelling	oai:doaj.org-article:ded7bb7b649541ea9e3a47c22f3b01ad2021-11-25T17:19:06ZDischarge Energy as a Key Contributing Factor Determining Microgeometry of Aluminum Samples Created by Electrical Discharge Machining10.3390/cryst111113712073-4352https://doaj.org/article/ded7bb7b649541ea9e3a47c22f3b01ad2021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4352/11/11/1371https://doaj.org/toc/2073-4352The aim of this study is first to determine the effect of the discharge energy on the surface microgeometry of aluminum samples created by electrical discharge machining (EDM). Secondly, an additional purpose is to demonstrate the differences between the geometric multiscale methods: length-, area-scale, and curvature. Eleven samples were manufactured using discharge energies ranging from 0.486 mJ to 1389.18 mJ and, subsequently, measured with focus variation microscopy. Standard ISO and multiscale parameters were calculated and used for surface discrimination and regression analysis. The results of linear, logarithmic, and exponential regression analyses revealed a strong correlation (R<sup>2</sup> > 0.9) between the geometrical features of the surface topography and the discharge energy. The approach presented in this paper shows that it is possible to shape surface microgeometry by changing the energy of electrical discharges, and these dependencies are visible in various scales of observation. The similarities of the results produced by curvature and length-scale methods were observed, despite the significant differences in the essence of those methods.Katarzyna PetaMichał MendakTomasz BartkowiakMDPI AGarticlesurface topographyelectrical discharge machiningmultiscale analysisCrystallographyQD901-999ENCrystals, Vol 11, Iss 1371, p 1371 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	surface topography electrical discharge machining multiscale analysis Crystallography QD901-999
spellingShingle	surface topography electrical discharge machining multiscale analysis Crystallography QD901-999 Katarzyna Peta Michał Mendak Tomasz Bartkowiak Discharge Energy as a Key Contributing Factor Determining Microgeometry of Aluminum Samples Created by Electrical Discharge Machining
description	The aim of this study is first to determine the effect of the discharge energy on the surface microgeometry of aluminum samples created by electrical discharge machining (EDM). Secondly, an additional purpose is to demonstrate the differences between the geometric multiscale methods: length-, area-scale, and curvature. Eleven samples were manufactured using discharge energies ranging from 0.486 mJ to 1389.18 mJ and, subsequently, measured with focus variation microscopy. Standard ISO and multiscale parameters were calculated and used for surface discrimination and regression analysis. The results of linear, logarithmic, and exponential regression analyses revealed a strong correlation (R<sup>2</sup> > 0.9) between the geometrical features of the surface topography and the discharge energy. The approach presented in this paper shows that it is possible to shape surface microgeometry by changing the energy of electrical discharges, and these dependencies are visible in various scales of observation. The similarities of the results produced by curvature and length-scale methods were observed, despite the significant differences in the essence of those methods.
format	article
author	Katarzyna Peta Michał Mendak Tomasz Bartkowiak
author_facet	Katarzyna Peta Michał Mendak Tomasz Bartkowiak
author_sort	Katarzyna Peta
title	Discharge Energy as a Key Contributing Factor Determining Microgeometry of Aluminum Samples Created by Electrical Discharge Machining
title_short	Discharge Energy as a Key Contributing Factor Determining Microgeometry of Aluminum Samples Created by Electrical Discharge Machining
title_full	Discharge Energy as a Key Contributing Factor Determining Microgeometry of Aluminum Samples Created by Electrical Discharge Machining
title_fullStr	Discharge Energy as a Key Contributing Factor Determining Microgeometry of Aluminum Samples Created by Electrical Discharge Machining
title_full_unstemmed	Discharge Energy as a Key Contributing Factor Determining Microgeometry of Aluminum Samples Created by Electrical Discharge Machining
title_sort	discharge energy as a key contributing factor determining microgeometry of aluminum samples created by electrical discharge machining
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ded7bb7b649541ea9e3a47c22f3b01ad
work_keys_str_mv	AT katarzynapeta dischargeenergyasakeycontributingfactordeterminingmicrogeometryofaluminumsamplescreatedbyelectricaldischargemachining AT michałmendak dischargeenergyasakeycontributingfactordeterminingmicrogeometryofaluminumsamplescreatedbyelectricaldischargemachining AT tomaszbartkowiak dischargeenergyasakeycontributingfactordeterminingmicrogeometryofaluminumsamplescreatedbyelectricaldischargemachining
_version_	1718412563556859904

Discharge Energy as a Key Contributing Factor Determining Microgeometry of Aluminum Samples Created by Electrical Discharge Machining

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