EFFECT OF CRYOGENIC TREATMENT APPLIED TO M42 HSS DRILLS ON THE MACHINABILITY OF Ti-6Al-4V ALLOY

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dc.contributor.authorKıvak, Turgay
dc.contributor.authorŞeker, Ulvi
dc.date.accessioned2020-05-01T09:11:37Z
dc.date.available2020-05-01T09:11:37Z
dc.date.issued2015
dc.departmentDÜ, Teknoloji Fakültesi, Makine ve İmalat Mühendisliği Bölümüen_US
dc.descriptionWOS: 000366552500015en_US
dc.description.abstractThis study investigated the effects of deep cryogenic treatment applied to M42 HSS drills on the tool wear, the tool life and the surface roughness during the drilling of a Ti-6Al-4V alloy under dry and wet cutting conditions. Drilling tests were carried out using untreated, cryogenically treated, cryogenically treated and tempered, and multi-layered TiAlN/TiN-coated HSS drills. Four different cutting speeds ((6, 8, 10, 12) m/min) and a constant feed rate of 0.06 mm/r were used as the cutting parameters and holes with a depth of 15 mm were drilled. At the end of the drilling tests, it was seen that the use of a coolant increased the tool life and decreased the surface roughness. Among the four tools, the best results in terms of the tool life and surface roughness were obtained with the multi-layered TiAlN/TiN-coated tool. The cryogenically treated and tempered drills exhibited an increase of 87 % in the tool life compared to the untreated drills. Scanning electron microscope (SEM) and X-ray diffraction (XRD) analyses showed that by reducing the size of the carbide particles in the microstructure, cryogenic treatment resulted in a more uniform carbide distribution and in the transformation of retained austenite to martensite. This played an important role in the increase in the hardness and wear resistance of the cutting tools.en_US
dc.description.sponsorshipGazi University Scientific Research Project DivisionGazi University [07/2010-38]en_US
dc.description.sponsorshipThe authors wish to express their sincere thanks to the Gazi University Scientific Research Project Division for its financial support for Project No: 07/2010-38.en_US
dc.identifier.doi10.17222/mit.2014.283en_US
dc.identifier.endpage956en_US
dc.identifier.issn1580-2949
dc.identifier.issn1580-3414
dc.identifier.issue6en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage949en_US
dc.identifier.urihttps://doi.org/10.17222/mit.2014.283
dc.identifier.urihttps://hdl.handle.net/20.500.12684/5691
dc.identifier.volume49en_US
dc.identifier.wosWOS:000366552500015en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherInst Za Kovinske Materiale I In Tehnologieen_US
dc.relation.ispartofMateriali In Tehnologijeen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectcryogenic treatmenten_US
dc.subjectmicrostructureen_US
dc.subjectM42 HSSen_US
dc.subjectdrillingen_US
dc.subjecttool lifeen_US
dc.subjectsurface roughnessen_US
dc.titleEFFECT OF CRYOGENIC TREATMENT APPLIED TO M42 HSS DRILLS ON THE MACHINABILITY OF Ti-6Al-4V ALLOYen_US
dc.typeArticleen_US

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