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박형욱

Park, Hyung Wook
Multiscale Hybrid Manufacturing Lab.
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dc.citation.startPage e00349 -
dc.citation.title SUSTAINABLE MATERIALS AND TECHNOLOGIES -
dc.citation.volume 30 -
dc.contributor.author Kim, Dong Min -
dc.contributor.author Kim, Hyung Ick -
dc.contributor.author Park, Hyung Wook -
dc.date.accessioned 2023-12-21T14:51:42Z -
dc.date.available 2023-12-21T14:51:42Z -
dc.date.created 2021-12-09 -
dc.date.issued 2021-12 -
dc.description.abstract Toward green manufacturing, the use of eco-friendly fluids such as cryogenic coolants is necessary for machining processes, instead of the use of conventional cutting fluids. The cryogenic spray method is most popular and, it can have high efficient for cooling cutting temperature and improving tool-life during machining operations. However, few studies have reported the benefits in terms of environment, cost for the cryogenic assisted hard turning processes. This study examines the economic and environmental impact of cryogenic cooling conditions on hard-turning machining. Liquid nitrogen was used as the cryogenic coolant. We examined the spray efficiency via computational fluid dynamics and experimental validation. The optimal nozzle for cryogenic spraying was found to have an internal angle of 45 degrees. The nozzle of internal angle 45 degrees has the highest distance and narrow width of spray shape in the results of computational fluid dynamics analysis and the experimental observation. Flank wear lengths were monitored under dry, wet, and cryogenic cooling conditions during the machining of AISI 52100 steel (62 HRC). The cryogenic assisted process improved ceramic cutting tool-life by 3-6 times compared to dry and wet conditions. The economic effects were also evaluated based on the tool-life data obtained. The improved tool life of the ceramic cutting tool by the cryogenic process reduced the total machine operation time; it thus reduced the electricity, carbon dioxide emissions of machine operations. The implementation of cryogenic cooling can be suitable for the green manufacturing process with the improvement of the environmental impact. -
dc.identifier.bibliographicCitation SUSTAINABLE MATERIALS AND TECHNOLOGIES, v.30, pp.e00349 -
dc.identifier.doi 10.1016/j.susmat.2021.e00349 -
dc.identifier.issn 2214-9937 -
dc.identifier.scopusid 2-s2.0-85118555751 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/55127 -
dc.identifier.url https://www.sciencedirect.com/science/article/pii/S2214993721001044?via%3Dihub -
dc.identifier.wosid 000719842500003 -
dc.language 영어 -
dc.publisher ELSEVIER -
dc.title Tool wear, economic costs, and CO2 emissions analysis in cryogenic assisted hard-turning process of AISI 52100 steel -
dc.type Article -
dc.description.isOpenAccess FALSE -
dc.relation.journalWebOfScienceCategory Green & Sustainable Science & Technology; Energy & Fuels; Materials Science, Multidisciplinary -
dc.relation.journalResearchArea Science & Technology - Other Topics; Energy & Fuels; Materials Science -
dc.type.docType Article -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordAuthor Hard turning -
dc.subject.keywordAuthor Cryogenic machining -
dc.subject.keywordAuthor Environmental impact -
dc.subject.keywordAuthor Cost analysis -
dc.subject.keywordPlus LUBRICATION -
dc.subject.keywordPlus CONSUMPTION -
dc.subject.keywordPlus IMPROVEMENT -
dc.subject.keywordPlus BEHAVIOR -
dc.subject.keywordPlus DESIGN -
dc.subject.keywordPlus ALLOYS -
dc.subject.keywordPlus MODEL -
dc.subject.keywordPlus DRY -

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