Materials flow for different lubricants during cold forming

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dc.authorwosidMısırlı, Cenk/IZD-5888-2023
dc.contributor.authorSahin, Mumin
dc.contributor.authorCetinarslan, Cem
dc.contributor.authorMisirili, Cenk
dc.date.accessioned2024-06-12T10:58:04Z
dc.date.available2024-06-12T10:58:04Z
dc.date.issued2013
dc.departmentTrakya Üniversitesien_US
dc.description.abstractPurpose - Barreling contour variations on the free surfaces of cylindrical upset specimen are to handle measuring for different upsetting reductions and different lubrication conditions in this study. The purpose of this paper is to address this issue. Design/methodology/approach - The materials flow for various materials using different lubricants in upsetting was investigated in this study. SAE 1020 steel, commercially pure copper and CuZn40Pb2 brass were used as the:test materials. Upsetting process was applied to the cylindrical specimens using flat end dies. Three types of lubricants, namely grease, graphite and SAE 40 oil, were used in this study. Experiments were performed using a hydraulic press, which has 5 mm/s ram speed, and with a capacity of 150 metric tons. Findings - Variations of barrel radius change clearly with increasing deformation ratio depending on lubricant type. Radius values are different to each other for SAE 1020, Cu and brass specimens. It was understood that surface roughness effect is negligible at material types. The highest radius values were obtained for the brass among all the materials for the same deformation ratio. The materials flow is hard for brass specimens because of its brittleness which is due to cold drawing so its barrel radii are high. On the contrary, SAE 1020 and copper are more suitable for the plastic deformation. As shown in the Figures, the higher radius values were obtained especially with grease lubricant for brass specimens. Research limitations/implications - It would be interesting to search material flow for different materials and lubricants. It could be a good idea for future work could be concentrated material flow on upsetting using different lubricants. Practical limitations - The friction at the faces of contact retards the plastic flow of metals and the surfaces and in its vicinity. A conical wedge of a relatively undeformed metal is formed immediately below it, while the rest of the cylinder metal suffers high strain hardening and bulges out in the form of a barrel. This demonstrates that the metal flows most easily towards the nearest free surface which is the point of least resistance. However, the use of lubricants reduces the degree of bulging and under the conditions of ideal lubrication, the bulging can be brought down to zero. Originality/value - The main value of this paper is to contribute and fulfil the detailed the dependency of barrel radius on material type by upsetting of specimen of various materials using different lubricants that are being studied so far in the literature.en_US
dc.identifier.doi10.1108/ILT-02-2011-0011
dc.identifier.endpage296en_US
dc.identifier.issn0036-8792
dc.identifier.issn1758-5775
dc.identifier.issue5en_US
dc.identifier.scopus2-s2.0-84882247242en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage287en_US
dc.identifier.urihttps://doi.org/10.1108/ILT-02-2011-0011
dc.identifier.urihttps://hdl.handle.net/20.500.14551/19929
dc.identifier.volume65en_US
dc.identifier.wosWOS:000324006100001en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherEmerald Group Publishing Ltden_US
dc.relation.ispartofIndustrial Lubrication And Tribologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCold Workingen_US
dc.subjectUpsettingen_US
dc.subjectLubricationen_US
dc.subjectLubricantsen_US
dc.subjectSurface Roughnessen_US
dc.subjectCalculate Foldoveren_US
dc.subjectSurface-Roughnessen_US
dc.subjectApproximate Modelen_US
dc.subjectAluminumen_US
dc.subjectFrictionen_US
dc.subjectBilletsen_US
dc.subjectCylindersen_US
dc.subjectDeformationen_US
dc.subjectBehavioren_US
dc.subjectStrainsen_US
dc.titleMaterials flow for different lubricants during cold formingen_US
dc.typeArticleen_US

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