Monitoring chip color change in Ti6Al4V alloy milling and investigating the effects of cooling/lubrication on chip morphology

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dc.contributor.authorOzdemir, Burak
dc.contributor.authorBahce, Erkan
dc.contributor.authorAksungur, Serhat
dc.contributor.authorCakir, M. Cemal
dc.date.accessioned2026-06-19T06:39:49Z
dc.date.available2026-06-19T06:39:49Z
dc.date.issued2024
dc.departmentMalatya Turgut Özal Üniversitesi
dc.description.abstractThis study investigated how image processing technology and cooling/lubrication methods affect the change in chip color and chip shape when milling Ti6Al4V alloy. The focus was on solving the high temperature problem in the machining of titanium alloys, which are hard and have limited thermal conductivity. The experiment was carried out under the same standards as dry, coolant, MQL (minimum amount of lubrication), and cryogen. Experiment results showed that cooling and lubricating methods had an influence on chip morphology, with the chips morphing into tubular long spiral chips, conical short spirals, and short tubular chips. Dry machining produced distinctively adiabatic bands and saw-type chip formations. These structures were found to be at a lower level in the cryogenic cooling process than in other methods. Methods of cooling and lubrication were found to be effective on chip thickness, width, and radius. In addition, the color difference caused by burning in the chip depending on the machining temperature was investigated. The S (saturation ratio) of colors in the chip image processing rose in the order of cryogen, coolant, MQL, and dry machining (0.131623, 0.150836, 0.208414, 0.230374) technique. When the temperature change was evaluated according to the cooling and lubrication techniques, the lowest temperature was found in cryogenic processing; the temperature value rose by 25 % in fluid, 35 % in MQL, and 55 % in dry machining. As a result, the intention of this study is to improve machining performance by monitoring chip structures.
dc.identifier.doi10.1016/j.jmapro.2024.07.025
dc.identifier.endpage1101
dc.identifier.issn1526-6125
dc.identifier.issn2212-4616
dc.identifier.orcid0000-0001-5389-5571
dc.identifier.orcid0000-0002-5870-0398
dc.identifier.scopus2-s2.0-85197532515
dc.identifier.scopusqualityQ1
dc.identifier.startpage1092
dc.identifier.urihttps://doi.org/10.1016/j.jmapro.2024.07.025
dc.identifier.urihttps://hdl.handle.net/20.500.12899/5812
dc.identifier.volume124
dc.identifier.wosWOS:001267134000001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofJournal of Manufacturing Processes
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20260612
dc.subjectCooling/Lubrication Methods
dc.subjectImage Processing
dc.subjectChip Color
dc.subjectMorphology
dc.titleMonitoring chip color change in Ti6Al4V alloy milling and investigating the effects of cooling/lubrication on chip morphology
dc.typeArticle

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