The Influences of Varying Feed Rate on Hole Quality and Force in Drilling CFRP Composite

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dc.authoridYASAR, NAFIZ/0000-0002-1427-1384
dc.contributor.authorYasar, Nafiz
dc.contributor.authorGunay, Mustafa
dc.date.accessioned2024-09-29T16:11:32Z
dc.date.available2024-09-29T16:11:32Z
dc.date.issued2017
dc.departmentKarabük Üniversitesien_US
dc.description.abstractThe selection of drill geometry and drilling parameters has high importance due to thermo-mechanical formations in drilling of carbon fiber reinforced polymer (CFRP) which has anisotropic structure. This study focused on the effects of drilling parameters on thrust force and hole quality in drilling of CFRP composites by applying constant and varying feed rate with uncoated WC drills having different point angles. Surface roughness, delamination factor and diameter plays a crucial role in the production of close-tolerance holes in hole quality. The quality of the hole surface was examined via surface roughness measurements and surface damage by scanning electron microscopy (SEM). Machinability experiments were performed with three different levels of drilling parameters that are point angle, cutting speed and feed rate. It was determined that thrust force (Fz), delamination factor (Fd) and surface roughness (Ra) values obtained in drilling processes by varying feed rate in hole exit are lower than that of constant feed rate with average of 21%, 14% and 36%, respectively. On the other hand, hole diameter (d) values obtained with varying feed rate in hole exit were higher than that of constant feed rate. The effects of drilling parameters on Fz, Fd and Ra were determined by analysis of variance with 95% confidence level and feed rate was found as the most significant parameter on them.en_US
dc.description.sponsorshipScientific Research Project Unit of Karabuk University [KBU-BAP-15/2-DR-022]en_US
dc.description.sponsorshipThis study is supported by Scientific Research Project Unit of Karabuk University (KBU-BAP-15/2-DR-022) and the authors express their appreciation for this support.en_US
dc.identifier.endpage50en_US
dc.identifier.issn2147-1762
dc.identifier.issue3en_US
dc.identifier.startpage39en_US
dc.identifier.urihttps://hdl.handle.net/20.500.14619/8512
dc.identifier.volume30en_US
dc.identifier.wosWOS:000418815100004en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherGazi Univen_US
dc.relation.ispartofGazi University Journal of Scienceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCFRPen_US
dc.subjectDrillingen_US
dc.subjectVarying feed rateen_US
dc.subjectHole qualityen_US
dc.subjectANOVAen_US
dc.titleThe Influences of Varying Feed Rate on Hole Quality and Force in Drilling CFRP Compositeen_US
dc.typeArticleen_US

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