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

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorFonteque Ribeiro, Fernando Sabino [UNESP]-
Autor(es): dc.creatorLopes, Jose Claudio [UNESP]-
Autor(es): dc.creatorGarcia, Mateus Vinicius [UNESP]-
Autor(es): dc.creatorAngelo Sanchez, Luiz Eduardo de [UNESP]-
Autor(es): dc.creatorMello, Hamilton Jose de [UNESP]-
Autor(es): dc.creatorAguiar, Paulo Roberto de [UNESP]-
Autor(es): dc.creatorBianchi, Eduardo Carlos [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:10:47Z-
Data de disponibilização: dc.date.available2022-02-22T00:10:47Z-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2020-05-25-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s00170-020-05500-w-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/196912-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/196912-
Descrição: dc.descriptionAmong 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.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionSao Paulo State Univ Julio de Mesquita Filho, Dept Mech Engn, Bauru Campus, Bauru, SP, Brazil-
Descrição: dc.descriptionSao Paulo State Univ Julio de Mesquita Filho, Dept Mech Engn, Bauru Campus, Bauru, SP, Brazil-
Descrição: dc.descriptionFAPESP: 2018/22661-2-
Formato: dc.format931-941-
Idioma: dc.languageen-
Publicador: dc.publisherSpringer-
Relação: dc.relationInternational Journal Of Advanced Manufacturing Technology-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectHardened steel AISI 4340-
Palavras-chave: dc.subjectExternal cylindrical grinding-
Palavras-chave: dc.subjectInterrupted grinding-
Palavras-chave: dc.subjectVitrified aluminum oxide grinding wheel-
Título: dc.titleGrinding assessment of workpieces with different interrupted geometries using aluminum oxide wheel with vitrified bond-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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