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Effect of powder metallurgy Cu-B4C electrodes on workpiece surface characteristics and machining performance of electric discharge machining

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dc.contributor.author Çoğun, Can
dc.contributor.author Esen, Ziya
dc.contributor.author Çoğun, Ferah
dc.date.accessioned 2020-04-20T10:27:13Z
dc.date.available 2020-04-20T10:27:13Z
dc.date.issued 2016-12
dc.identifier.citation Cogun, Can; Esen, Ziya; Genc, Asim; et al. "Effect of powder metallurgy Cu-B4C electrodes on workpiece surface characteristics and machining performance of electric discharge machining", Proceedings of the Institution of Mechanical Engineers Part B-Journal of Engineering Manufacture, Vol. 230, No. 12, pp. 2190-2203, (2016). tr_TR
dc.identifier.issn 0954-4054
dc.identifier.issn 2041-1975
dc.identifier.uri http://hdl.handle.net/20.500.12416/3393
dc.description.abstract The main aim of this study is to produce new powder metallurgy (PM) Cu-B4C composite electrode (PM/(Cu-B4C)) capable of alloying the recast workpiece surface layer during electric discharge machining process with boron and other hard intermetallic phases, which eventually yield high hardness and abrasive wear resistance. The surface characteristics of the workpiece machined with a PM/(Cu-B4C) electrode consisted of 20 wt% B4C powders were compared with those of solid electrolytic copper (E/Cu) and powder metallurgy pure copper (PM/Cu) electrodes. The workpiece surface hardness, surface abrasive wear resistance, depth of the alloyed surface layer and composition of alloyed layers were used as key parameters in the comparison. The workpiece materials, which were machined with PM/(Cu-B4C) electrodes, exhibited significantly higher hardness and abrasive wear resistance than those of machined with the E/Cu and PM/Cu. The main reason was the presence of hard intermetallic phases, such as FeB, B4C (formed due to the boron in the electrode) and Fe3C in the surface layer. The improvement of the surface hardness achieved for steel workpiece when using PM/(Cu-B4C) electrodes was significantly higher than that reported in the literature. Moreover, the machining performance outputs (workpiece material removal rate, electrode wear rate and workpiece average surface roughness (Ra)) of the electrodes were also considered in this study. tr_TR
dc.language.iso eng tr_TR
dc.publisher Sage Publications LTD tr_TR
dc.relation.isversionof 10.1177/0954405415593049 tr_TR
dc.rights info:eu-repo/semantics/closedAccess tr_TR
dc.subject Electric Discharge Machining tr_TR
dc.subject Powder Metallurgy Electrode tr_TR
dc.subject Copper Powder tr_TR
dc.subject Boron Carbide Powder tr_TR
dc.subject Surface Hardness tr_TR
dc.subject Abrasive Wear Resistance tr_TR
dc.subject Machining Performance tr_TR
dc.title Effect of powder metallurgy Cu-B4C electrodes on workpiece surface characteristics and machining performance of electric discharge machining tr_TR
dc.type article tr_TR
dc.relation.journal Proceedings of the Institution of Mechanical Engineers Part B-Journal of Engineering Manufacture tr_TR
dc.contributor.authorID 3837 tr_TR
dc.contributor.authorID 52373 tr_TR
dc.identifier.volume 230 tr_TR
dc.identifier.issue 12 tr_TR
dc.identifier.startpage 2190 tr_TR
dc.identifier.endpage 2203 tr_TR
dc.contributor.department Çankaya Üniversitesi, Mühendislik Fakültesi, Mekatronik Mühendisliği Bölümü tr_TR


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