An experimental investigation of the effects of point angle on the high-speed steel drills performance in drilling

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dc.authorid0000-0002-0685-3712en_US
dc.contributor.authorDemir, Zülküf
dc.date.accessioned2019-06-28T07:23:28Z
dc.date.available2019-06-28T07:23:28Z
dc.date.issued2018-11en_US
dc.departmentBatman Üniversitesi Mühendislik - Mimarlık Fakültesi Makine Mühendisliği Bölümüen_US
dc.description.abstractThe differences in the cutting speed are a serious problem along the cutting edge of the drill, in drilling operations. This problem can partly be solved reducing the length of the cutting edge via changing the drill point angle. In addition, in this study, the effect of point angle, feed rate, and cutting speed on drilling is investigated. For identifying the optimum cutting parameters, AISI 1050 steel alloy was selected as the experimental specimen, these specimen were pre-drilled 5 mm in diameter due to eliminating the effect of the chisel edge. In the experiments, the holes were drilled only at a depth of 10 mm in order not to give any harm to the dynamometer while measuring thrust force. For this aim, in drilling process, drills with point angle of 100°, 118°, 136°, 154°, and 172° were selected. In conclusion, the thrust force, the tool wear, and the surface roughness linearly decreased with increasing point angles due to less removal chip area, in per revolve of the tool. However, the thrust force, the tool wear, and the surface roughness were adversely affected at higher feed rates and lower cutting speeds. The hole dimensional accuracy decreased at lower feed rates and cutting speeds but at higher point angles and concurrently at higher feed rates but lower point angles and cutting speeds. However, the hole dimensional accuracy showed more decisiveness at 118° than other point angles, while the highest dimensional accuracy values recorded at 136° point angle, at higher cutting speeds.en_US
dc.identifier.citationDemir, Z. (2018). An experimental investigation of the effects of point angle on the high-speed steel drills performance in drilling. Measurement and Control, 51(9-10), pp. 417-430. https://doi.org/10.1177/0020294018797853en_US
dc.identifier.endpage430en_US
dc.identifier.issn0020-2940
dc.identifier.issue9-10en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage417en_US
dc.identifier.urihttps://doi.org/10.1177/0020294018797853
dc.identifier.urihttps://hdl.handle.net/20.500.12402/2147
dc.identifier.volume51en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSAGEen_US
dc.relation.isversionof10.1177/0020294018797853en_US
dc.relation.journalMeasurement and Controlen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.rightsAttribution 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/us/*
dc.subjectDrill Point Angleen_US
dc.subjectHole Dimensional Accuracyen_US
dc.subjectSurface Roughnessen_US
dc.subjectThrust Forceen_US
dc.subjectTool Wearen_US
dc.titleAn experimental investigation of the effects of point angle on the high-speed steel drills performance in drillingen_US
dc.typeArticleen_US

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