The impact of heat treatment process on the drilling characteristics of Al-5Si-1Cu-Mg alloy produced by sand casting

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dc.authoridalparslan, cem/0000-0001-7316-360X
dc.authoridBAYRAKTAR, Senol/0000-0001-8226-0188
dc.authoridSarikaya, Murat/0000-0001-6100-0731
dc.contributor.authorBayraktar, Senol
dc.contributor.authorAlparslan, Cem
dc.contributor.authorSalihoglu, Nurten
dc.contributor.authorSarikaya, Murat
dc.date.accessioned2025-03-23T19:41:00Z
dc.date.available2025-03-23T19:41:00Z
dc.date.issued2024
dc.departmentSinop Üniversitesi
dc.description.abstractAluminum-Silicon (Al-Si) based materials are commonly preferred in engineering studies requiring high mechanical performance as an alternative to steel materials. These alloys are especially preferred in the automotive industry, aerospace components and heavy machinery parts. In post-casting processes, machining operations are of great importance for high geometric precision, surface quality and longer fatigue life in mechanical environments. In this research, the microstructural, mechanical and machining characteristics of the Al-5Si-1Cu-Mg material produced by sand casting method in both as-cast (AC) and heat-treated (HTed) (Solid solution, quenching and aging-SQA) states were experimentally investigated. Microstructural examinations were carried out with optical microscope and SEM images. Mechanical properties were determined by tensile and hardness tests. Then, drilling experiments were performed in the CNC vertical machining center with 8 mm diameter uncoated HSS (High Speed Steel) cutting tools at constant cutting conditions (i.e., cutting speed-V: 125 m/min, feed rate-f: 0.05 mm/rev and depth of cut-DoC: 15 mm). In microstructural investigations, it was determined that the microstructure of the Al-5Si-1Cu-Mg material in AC state consists of alpha-Al, eutectic Si, beta-Fe (beta-Al5FeSi) and it-Fe (it-Al8Mg3FeSi6) intermetallics. After the SQA, the existing phases generally exhibited a spherical structure, and it was seen that the beta phase in the microstructure transformed into the circle minus (Al7FeCu2) phase. SQA improved the hardness, yield and tensile durability of the material, whereas decreasing the elongation to fracture. SQA process improved the machining characteristics of the material by decreasing thrust force, moment, surface roughness and built-up edge (BUE) formation. The machined subsurface structure of HTed alloy under constant cutting conditions was determined to be more stable and smooth and the machined surface microhardness of HTed alloy was higher compared to as-cast alloy due to the effect of solid precipitation hardening. In addition, shorter and more broken chips occurred in the machining of HTed alloys due to the effect of low elongation to fracture.
dc.description.sponsorshipTUBITAK [221M064]; Recep Tayyip Erdogan University Development Foundation [02024008019032]; Polish National Agency for Academic Exchange (NAWA) under the Ulam Programme [Polish National Agency for Academic Exchange (NAWA) under the Ulam Programme]
dc.description.sponsorshipThe authors would like to thank TUBITAK for their support with Project No: 221M064. Additionally, this study has been supported by the Recep Tayyip Erdogan University Development Foundation (Grant number: 02024008019032). Murat Sarikaya acknowledges the Polish National Agency for Academic Exchange (NAWA) under the Ulam Programme (Grant No. BPN/ULM/2023/1/00035).
dc.identifier.doi10.1016/j.jmrt.2024.10.010
dc.identifier.endpage2772
dc.identifier.issn2238-7854
dc.identifier.issn2214-0697
dc.identifier.scopus2-s2.0-85205506321
dc.identifier.scopusqualityQ1
dc.identifier.startpage2764
dc.identifier.urihttps://doi.org/10.1016/j.jmrt.2024.10.010
dc.identifier.urihttps://hdl.handle.net/11486/6492
dc.identifier.volume33
dc.identifier.wosWOS:001333233100001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofJournal of Materials Research and Technology-Jmr&T
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20250323
dc.subjectAl-5Si-1Cu-Mg alloy
dc.subjectMicrostructure
dc.subjectMechanical properties
dc.subjectMachinability characteristics
dc.subjectHeat treatment
dc.titleThe impact of heat treatment process on the drilling characteristics of Al-5Si-1Cu-Mg alloy produced by sand casting
dc.typeArticle

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