Analysis of Machinability and Crack Occurrence of Steels 1.2363 and 1.2343ESR Machined by Die-Sinking EDM

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dc.contributor.authorMouralová, Kateřinacs
dc.contributor.authorBeneš, Liborcs
dc.contributor.authorBednář, Josefcs
dc.contributor.authorZahradníček, Radimcs
dc.contributor.authorProkeš, Tomášcs
dc.contributor.authorFries, Jiřícs
dc.coverage.issue4cs
dc.coverage.volume10cs
dc.date.issued2020-04-19cs
dc.description.abstractDie-sinking electric discharge machining (EDM) is an indispensable technological operation, especially in the production of molds and all internal and external shapes and cavities. For this reason, the effect of machine parameter settings (open-voltage, pulse current, pulse on time, and pulse off time) on the machining of two types of steels, 1.2363 and 1.2343ESR, was carefully investigated using graphite or copper electrodes in 10mm × 10 mm or 100mm × 100 mm shapes. For this purpose, a two-level half factor experiment was performed with one replication at the corner points and two replications at the central points, with a total of 80 rounds. The subject of the evaluation was the topography and morphology of machined surfaces including a detailed analysis of surface and subsurface defects in the form of cracks including the creation of regression equations describing the probability of crack occurrence. Furthermore, a study of the local hardness change in the subsurface area was performed, and lamellas were also made and studied by transmission electron microscopy. It has been found that by using die-sinking EDM, it is possible to effectively predict the probability of cracking on machined surfaces and also on machine 1.2363 and 1.2343ESR steels with a very good surface quality of Ra 1.9 and 2.1 µm using graphite electrodes. These findings will ensure the production of parts with the required surface quality without cracks, which is a crucial aspect for maintaining the required functionality and service life of the parts.en
dc.description.abstractDie-sinking electric discharge machining (EDM) is an indispensable technological operation, especially in the production of molds and all internal and external shapes and cavities. For this reason, the effect of machine parameter settings (open-voltage, pulse current, pulse on time, and pulse off time) on the machining of two types of steels, 1.2363 and 1.2343ESR, was carefully investigated using graphite or copper electrodes in 10mm × 10 mm or 100mm × 100 mm shapes. For this purpose, a two-level half factor experiment was performed with one replication at the corner points and two replications at the central points, with a total of 80 rounds. The subject of the evaluation was the topography and morphology of machined surfaces including a detailed analysis of surface and subsurface defects in the form of cracks including the creation of regression equations describing the probability of crack occurrence. Furthermore, a study of the local hardness change in the subsurface area was performed, and lamellas were also made and studied by transmission electron microscopy. It has been found that by using die-sinking EDM, it is possible to effectively predict the probability of cracking on machined surfaces and also on machine 1.2363 and 1.2343ESR steels with a very good surface quality of Ra 1.9 and 2.1 µm using graphite electrodes. These findings will ensure the production of parts with the required surface quality without cracks, which is a crucial aspect for maintaining the required functionality and service life of the parts.en
dc.formattextcs
dc.format.extent1-18cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationCoatings, MDPI. 2020, vol. 10, issue 4, p. 1-18.en
dc.identifier.doi10.3390/coatings10040406cs
dc.identifier.issn2079-6412cs
dc.identifier.orcid0000-0002-6025-2520cs
dc.identifier.orcid0000-0002-3812-6392cs
dc.identifier.orcid0000-0002-9916-718Xcs
dc.identifier.orcid0000-0002-6096-8481cs
dc.identifier.other163597cs
dc.identifier.researcheridE-6942-2018cs
dc.identifier.researcheridD-9350-2013cs
dc.identifier.researcheridE-6971-2018cs
dc.identifier.scopus56316583900cs
dc.identifier.scopus36805437000cs
dc.identifier.scopus57192414548cs
dc.identifier.urihttp://hdl.handle.net/11012/188999
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofCoatings, MDPIcs
dc.relation.urihttps://www.mdpi.com/2079-6412/10/4/406cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2079-6412/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectdie-sinking EDMen
dc.subjectelectrical discharge machiningen
dc.subjectsteelen
dc.subjectdesign of experimenten
dc.subjectcracksen
dc.subjectmachining parametersen
dc.subjectdie-sinking EDM
dc.subjectelectrical discharge machining
dc.subjectsteel
dc.subjectdesign of experiment
dc.subjectcracks
dc.subjectmachining parameters
dc.titleAnalysis of Machinability and Crack Occurrence of Steels 1.2363 and 1.2343ESR Machined by Die-Sinking EDMen
dc.title.alternativeAnalysis of Machinability and Crack Occurrence of Steels 1.2363 and 1.2343ESR Machined by Die-Sinking EDMen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-163597en
sync.item.dbtypeVAVen
sync.item.insts2025.10.14 14:10:29en
sync.item.modts2025.10.14 10:10:09en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav matematikycs
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav strojírenské technologiecs
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav automatizace a informatikycs
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav mikroelektronikycs
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