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dc.contributor.authorOliveira, Danilo de Jesus [UNESP]
dc.contributor.authorGuermandi, Luiz Gustavo [UNESP]
dc.contributor.authorBianchi, Eduardo Carlos [UNESP]
dc.contributor.authorDiniz, Anselmo Eduardo
dc.contributor.authorde Aguiar, Paulo Roberto [UNESP]
dc.contributor.authorCanarim, Rubens Chinali [UNESP]
dc.identifier.citationJournal of Materials Processing Technology. Lausanne: Elsevier B.V. Sa, v. 212, n. 12, p. 2559-2568, 2012.
dc.description.abstractThe application of minimum quantity lubrication (MQL) in grinding has emerged as an alternative for reducing the abundant flow of cutting fluids, thus achieving cleaner production. Although considered an innovative technique in grinding operations, its widespread application is hindered due primarily to the high heat generation and wheel pore clogging caused by machined chips, harming the final product quality and increasing tool wear on the machine. This study sought to improve MQL use in grinding. In addition to the conventional MQL injected at the wheel/workpiece interface, a compressed air jet was used to clean the mixture of MQL oil and machined chips from clogged wheel pores. Experiments were conducted using external cylindrical plunge grinding on AISI 4340 quenched and tempered steel, and a vitrified cubic boron nitrite (CBN) wheel. The cooling-lubrication methods employed were the conventional flood coolant application, MQL (without cleaning), and MQL with a cleaning jet directed at the wheel surface at different angles of incidence. The main goal of these experiments was to verify the viability of replacing the traditional abundant flow of cutting fluid with MQL and wheel cleaning. The analyses were conducted by measuring the following output variables of the process: workpiece surface roughness and roundness errors, diametrical wheel wear, acoustic emission generated by the process, and metallographic images of the ground surface and subsurface. Results show the positive effects of implementing the cleaning jet technique as a technological improvement of minimum quantity lubrication in grinding in order to reduce the usage of cutting fluids. The MQL technique with cleaning compressed air jet, for a specific angle of incidence (30 degrees), proved to be extremely efficient in the improvement of the surface quality and accurate workpiece shape; it also reduced wheel wear when compared to the other cooling-lubrication methods that were tested (without a cleaning jet). (C) 2012 Elsevier B.V. All rights reserved.en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipSchaeffler Group (INA brand)
dc.publisherElsevier B.V. Sa
dc.relation.ispartofJournal of Materials Processing Technology
dc.sourceWeb of Science
dc.subjectMinimum quantity lubricationen
dc.subjectWheel cleaningen
dc.titleImproving minimum quantity lubrication in CBN grinding using compressed air wheel cleaningen
dcterms.rightsHolderElsevier B.V. Sa
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.description.affiliationUniv Estadual Paulista UNESP, Bauru Sch Engn, Dept Mech Engn, BR-17033360 Bauru, SP, Brazil
dc.description.affiliationState Univ Campinas UNICAMP, Fac Mech Engn, BR-13081970 Campinas, SP, Brazil
dc.description.affiliationUniv Estadual Paulista UNESP, Bauru Sch Engn, Dept Elect Engn, BR-17033360 Bauru, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista UNESP, Bauru Sch Engn, Dept Mech Engn, BR-17033360 Bauru, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista UNESP, Bauru Sch Engn, Dept Elect Engn, BR-17033360 Bauru, SP, Brazil
dc.rights.accessRightsAcesso restrito
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Engenharia, Baurupt
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