Effect of sustainable cooling and lubrication method on the hole quality and machinability performance in drilling of AA7075 alloy with cryogenically treated carbide drills

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dc.authorid0009-0002-5389-1532
dc.authoridhttps://orcid.org/0000-0002-9802-083X
dc.contributor.authorÖzger, Gökhan
dc.contributor.authorAkgün, Mahir
dc.contributor.authorDemir, Halil
dc.date.accessioned2025-07-24T10:14:06Z
dc.date.available2025-07-24T10:14:06Z
dc.date.issued2025
dc.departmentTeknik Bilimler Meslek Yüksekokulu
dc.description.abstractThe present study examines the machinability performance of AA 7075 alloy under dry, air, and MQL-assisted machining conditions with cryogenically treated drills. The machinability performance of the AA 7075 alloy was evaluated in terms of surface roughness, cutting temperature, tool wear, deviation from diameter and circularity. Drilling tests were created using the Taguchi Taguchi L18 index. The cutting tool, cutting environments (dry, air and MQL), cutting speed, and feed rate were selected as drilling parameters. The data obtained from the drilling experiments were subjected to statistical analysis using the following techniques: signal-to-noise ratio (SNR), variance (ANOVA), and regression. The outcomes of this study show that cryogenic treatment increases the microhardness of tungsten carbide drills and positively affects machinability performance characteristics. It was also determined that surface roughness, cutting temperature, deviation from diameter and circularity values were approximately 99.81 %, 27 %, 38 %, and 40 % lower in air-assisted machining conditions and approximately 33.62 %, 30 %, 42 %, and 50 % lower in MQL-assisted machining conditions, respectively, compared to dry-machining condition. Moreover, SEM examination shows that the dominant wear mode for the cutting tools is built-up chipping (BUE) and negligible tool chipping occurs.
dc.identifier.doi10.1515/mt-2024-0538
dc.identifier.issn0025-5300 / 2195-8572
dc.identifier.issue5
dc.identifier.urihttps://dx.doi.org/10.1515/mt-2024-0538
dc.identifier.urihttps://hdl.handle.net/20.500.12451/13562
dc.identifier.volume67
dc.identifier.wosWOS:001463524800001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.institutionauthorAkgün, Mahir
dc.institutionauthorid0000-0002-4522-066X
dc.language.isoen
dc.publisherWalter de Gruyter (Verlag)
dc.relation.ispartofMaterials Testing
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectAA7075 Alloy
dc.subjectCryogenic Treatment s
dc.subjectSustainability
dc.subjectMinimum Quantity Lubrication
dc.subjectSurface Roughness
dc.subjectHole Quality
dc.titleEffect of sustainable cooling and lubrication method on the hole quality and machinability performance in drilling of AA7075 alloy with cryogenically treated carbide drills
dc.typeArticle

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