Drilling performance of novel lightweight carbon specialty graphites with different grain sizes

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dc.authorid0000-0002-8706-1177
dc.authorid0000-0001-5833-7499
dc.authorid0000-0001-5519-7240
dc.authorid0000-0002-6150-9762
dc.contributor.authorKayıhan, Meteen_US
dc.contributor.authorYıldız, Mustafaen_US
dc.contributor.authorKuzu, Ali Taneren_US
dc.contributor.authorBakkal, Mustafaen_US
dc.date.accessioned2026-05-05T07:12:41Z
dc.date.available2026-05-05T07:12:41Z
dc.date.issued2026-04
dc.departmentIşık Üniversitesi, Mühendislik ve Doğa Bilimleri Fakültesi, Makine Mühendisliği Bölümüen_US
dc.departmentIşık University, Faculty of Engineering and Natural Sciences, Department of Mechanical Engineeringen_US
dc.description.abstractBecause of their excellent machinability, low density, and great thermal stability, specialty graphite materials are being utilized more and more in precision engineering applications. The impact of the graphite particle size on drilling performance under various cutting conditions, however, has not been well studied. The drilling performance of three specialty graphite materials with various grain sizes was examined in this study. While MSG30 and MSG46 have micrometer-sized grains with greater mechanical strength, the graphite substance labeled MSG215 has a coarse grain structure (0.9 mm). High speed steel and tungsten carbide drills were used in drilling experiments at three distinct feed rates and cutting speeds. Using Taguchi experimental design and analysis of variance, the effects of cutting settings and particle size on the thrust force were examined. Workpiece temperatures were monitored during drilling using embedded thermocouples, and the correlation between the temperature evolution at four distinct depth points and cutting parameters was assessed. The dimensional accuracy, tool wear, and surface roughness were additionally evaluated. The findings show that the drilling performance is significantly impacted by graphite grain size. In comparison to fine-grained materials, coarse-grained graphite generated thrust forces that were about 30% lower and surface roughness levels that were about 20% greater. The temperature increase during drilling was minimal, owing to the strong thermal conductivity of graphite, resulting in an average workpiece temperature of 35 degrees C and a rise of about 15 degrees C under dry cutting conditions. Tool wear and thermal loads were also reduced compared with those commonly seen in conventional engineering materials. In addition to offering useful advice for choosing appropriate cutting parameters and tool materials in precision graphite machining applications, the findings provide light on the microstructure-dependent drilling behavior of specialty graphite.en_US
dc.description.versionPublisher's Versionen_US
dc.identifier.citationKayıhan, M., Yıldız, M., Kuzu, A. T. & Bakkal, M. (2026). Drilling performance of novel lightweight carbon specialty graphites with different grain sizes. ACS Omega, 1-8. doi:https://doi.org/10.1021/acsomega.6c01467en_US
dc.identifier.endpage8
dc.identifier.issn2470-1343
dc.identifier.startpage1
dc.identifier.urihttps://hdl.handle.net/11729/7373
dc.identifier.urihttps://doi.org/10.1021/acsomega.6c01467
dc.identifier.wosWOS:001746650700001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScience Citation Index Expanded (SCI-EXPANDED)en_US
dc.institutionauthorKuzu, Ali Taneren_US
dc.institutionauthorid0000-0001-5519-7240
dc.language.isoenen_US
dc.peerreviewedYesen_US
dc.publicationstatusPublisheden_US
dc.publisherAmer Chemical Socen_US
dc.relation.ispartofACS Omegaen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectTool wearen_US
dc.subjectMicroen_US
dc.titleDrilling performance of novel lightweight carbon specialty graphites with different grain sizesen_US
dc.typeArticleen_US
dspace.entity.typePublicationen_US

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