Grinding assessment of workpieces with different interrupted geometries using aluminum oxide wheel with vitrified bond

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dc.contributor.authorFonteque Ribeiro, Fernando Sabino [UNESP]
dc.contributor.authorLopes, Jose Claudio [UNESP]
dc.contributor.authorGarcia, Mateus Vinicius [UNESP]
dc.contributor.authorAngelo Sanchez, Luiz Eduardo de [UNESP]
dc.contributor.authorMello, Hamilton Jose de [UNESP]
dc.contributor.authorAguiar, Paulo Roberto de [UNESP]
dc.contributor.authorBianchi, Eduardo Carlos [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2020-12-10T20:00:07Z
dc.date.available2020-12-10T20:00:07Z
dc.date.issued2020-05-25
dc.description.abstractAmong conventional machining processes, grinding presents itself as a material removal process that can produce workpiece with excellent surface finish and high geometric precision. Given the high industrial demand, more and more machining methods are being sought to allow high production speeds coupled with reduced costs. The requirement for high productivity and low-cost grinding processes often bumps into the geometry of the desired workpiece. Numerous grounded components in the automotive, aeronautics, and naval industries have geometric interruptions, such as ring seating channels and lubrication ducts. Interrupted grinding leads to shorter tool life and can lead to a decrease in the dimensional and surface quality of the mechanical component, thus requiring grinding of these components at low speeds. Thus, the present paper shows an experimental evaluation of interrupted cylindrical grinding of hardened steel AISI 4340 with vitrified aluminum oxide grinding wheel. Interrupted circular workpieces (2, 6, and 12 channels) were applied to simulate interruptions found in mechanical components subjected to interrupted grinding at feed rates of 0.25, 0.50, and 0.75 mm/min, at cutting speed of 32 m/s, under conventional lubrication, compared with uninterrupted workpieces under the same machining conditions. The output parameters evaluated were surface roughness, roundness deviation, grinding power, micrography, diametral wheel wear, and G-ratio, being evaluated statically by analysis of variance (ANOVA). There were no verified regions with burning or microcracks in all conditions. Still, the increase in the rate of advancement generated a drop of up to 68.7% in surface roughness, 40.5% in shape errors, and an increase in diametrical degreasing of the average grinding wheel of 90.9%. The wheel wear was more accentuated due to the number of interruptions, reaching a wear rate of up to 252% higher than the conventional condition.en
dc.description.affiliationSao Paulo State Univ Julio de Mesquita Filho, Dept Mech Engn, Bauru Campus, Bauru, SP, Brazil
dc.description.affiliationUnespSao Paulo State Univ Julio de Mesquita Filho, Dept Mech Engn, Bauru Campus, Bauru, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 2018/22661-2
dc.format.extent931-941
dc.identifierhttp://dx.doi.org/10.1007/s00170-020-05500-w
dc.identifier.citationInternational Journal Of Advanced Manufacturing Technology. London: Springer London Ltd, v. 108, n. 3, p. 931-941, 2020.
dc.identifier.doi10.1007/s00170-020-05500-w
dc.identifier.issn0268-3768
dc.identifier.urihttp://hdl.handle.net/11449/196912
dc.identifier.wosWOS:000535401800003
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofInternational Journal Of Advanced Manufacturing Technology
dc.sourceWeb of Science
dc.subjectHardened steel AISI 4340
dc.subjectExternal cylindrical grinding
dc.subjectInterrupted grinding
dc.subjectVitrified aluminum oxide grinding wheel
dc.titleGrinding assessment of workpieces with different interrupted geometries using aluminum oxide wheel with vitrified bonden
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
unesp.author.orcid0000-0001-5517-1016[2]
unesp.author.orcid0000-0002-8559-6549[3]

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