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dc.contributor.authorMouralová, Kateřina
dc.contributor.authorBednář, Josef
dc.contributor.authorBeneš, Libor
dc.contributor.authorHrabec, Pavel
dc.contributor.authorKalivoda, Milan
dc.contributor.authorFries, Jiří
dc.date.accessioned2020-12-14T08:47:52Z
dc.date.available2020-12-14T08:47:52Z
dc.date.issued2020
dc.identifier.citationArchives of Civil & Mechanical Engineering. 2020, vol. 20, issue 4, art. no. 130.cs
dc.identifier.issn1644-9665
dc.identifier.issn2083-3318
dc.identifier.urihttp://hdl.handle.net/10084/142477
dc.description.abstractDie-sinking electrical discharge machining is an unconventional technology that allows to machine all at least minimally electrically conductive materials regardless of their physical and mechanical properties. Despite the fact that it is not a conventional technology, the tool gets also worn out, which is a tool electrode. The wear of the electrode does not only mean its loss but also the degradation of the shapes that are transferred to the resulting workpiece. For this reason, a design of experiments was conducted with 6 input factors, 2 were categorical: the electrode material (copper, graphite) and workpiece material (steel 1.2363 and steel 1.2343ESR) and 4 were numerical: Open-voltage, Pulse current, Pulse on-time, and Pulse off-time. In the framework of this design of experiments, the wear of the used graphite and copper electrodes at their corners and edges was evaluated, which was made possible by the use of electron microscopy and the use of approximation circles. Furthermore, the eroding speed, the topography of the machined samples, and the morphology of the surfaces of the used electrodes were investigated. It has been recognized that the use of a graphite electrode will allow for more accurate workpiece shapes and less wear.cs
dc.language.isoencs
dc.publisherSpringer Naturecs
dc.relation.ispartofseriesArchives of Civil & Mechanical Engineeringcs
dc.relation.urihttp://doi.org/10.1007/s43452-020-00137-8cs
dc.rightsCopyright © 2020, Wroclaw University of Science and Technologycs
dc.subjectEDMcs
dc.subjectelectrical discharge machiningcs
dc.subjectwearcs
dc.subjectdesign of experimentcs
dc.subjectelectrodecs
dc.subjectcornerscs
dc.titleThe analysis of EDM electrodes wear in corners and edgescs
dc.typearticlecs
dc.identifier.doi10.1007/s43452-020-00137-8
dc.rights.accessopenAccesscs
dc.type.versionpublishedVersioncs
dc.type.statusPeer-reviewedcs
dc.description.sourceWeb of Sciencecs
dc.description.volume20cs
dc.description.issue4cs
dc.description.firstpageart. no. 130cs
dc.identifier.wos000581749800002


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