Controlling short circuiting, oxide layer and cavitation problems in electrochemical machining of freeform surfaces

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dc.authorid0000-0003-2115-2487en_US
dc.contributor.authorDemirtas, Hasan
dc.contributor.authorYilmaz, Oguzhan
dc.contributor.authorKanber, Bahattin
dc.date.accessioned2021-03-20T20:12:56Z
dc.date.available2021-03-20T20:12:56Z
dc.date.issued2018
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Makine Mühendisliği Bölümüen_US
dc.description.abstractFreeform surfaces are widely used in the design of complex parts to satisfy aesthetic and functional requirements, particularly in automotive, aeronautics, and die-mould industries. Traditional machining of freeform surfaces is gradual and involves significant manual interactions. Non-traditional machining processes such as electro-chemical machining (ECM) enable to increase productivity and cost effectiveness when machining of freeform surfaces as well as hard to cut materials in large scale production. However, some manufacturing problems may be arisen during ECM process and the control mechanisms for preventing such problems (short circuiting, oxide layer and cavitation problems) are very critical for achieving correct form of freeform surfaces and a complete process without any faults in ECM process. This paper firstly investigates possible causes of the ECM drawbacks such as short-circuiting, cavitation, and oxide-layer formation while ECMing of freeform surfaces and then proposed solutions in order to prevent these drawbacks are discussed. A closed-loop control system was developed using a micro-controller board in order to control short-circuiting. Flow analysis was carried out using an ANSYS (R) Workbench and four different types of apparatus were designed for preventing the cavitation formation. The conducted experiments showed that the voltage feedback was alone insufficient to prevent shortcircuiting during high feed rates. In addition, it was observed that the velocity distribution prevented the cavitation when the velocity was adequate within the gap domain. Additionally, it has been showed that the oxide layer generation was associated with the amount of contamination in the electrolyte solution.en_US
dc.description.sponsorshipGaziantep University Scientific Research Project (BAP) Department [MF.14.19]en_US
dc.description.sponsorshipThis work was supported by the Gaziantep University Scientific Research Project (BAP) Department [grant number MF.14.19].en_US
dc.identifier.doi10.1016/j.jmatprotec.2018.07.029en_US
dc.identifier.endpage596en_US
dc.identifier.issn0924-0136
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage585en_US
dc.identifier.urihttp://doi.org/10.1016/j.jmatprotec.2018.07.029
dc.identifier.urihttps://hdl.handle.net/20.500.12885/747
dc.identifier.volume262en_US
dc.identifier.wosWOS:000445986900058en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorKanber, Bahattin
dc.language.isoenen_US
dc.publisherElsevier Science Saen_US
dc.relation.ispartofJournal Of Materials Processing Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectECMen_US
dc.subjectShort circuiten_US
dc.subjectCavitationen_US
dc.subjectOxide layeren_US
dc.subjectFreeform surfaceen_US
dc.titleControlling short circuiting, oxide layer and cavitation problems in electrochemical machining of freeform surfacesen_US
dc.typeArticleen_US

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