Contribuição ao processo de afiação de ferramentas monocortantes de aço rápido

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dc.contributor.authorDe Paiva, Raphael Lima
dc.contributor.authorDa Silva, Rosemar Batista
dc.contributor.authorArencibia, Rosenda Valdés
dc.contributor.authorRuzzi, Rodrigo De Souza [UNESP]
dc.contributor.authorBianchi, Eduardo Carlos [UNESP]
dc.contributor.authorde Aguiar, Paulo Roberto [UNESP]
dc.contributor.institutionUniversidade Federal de Uberlândia (UFU)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T17:33:39Z
dc.date.available2018-12-11T17:33:39Z
dc.date.issued2017-01-01
dc.description.abstractDespite of technological advances in developments of cutting tools such as carbide inserts, ceramic materials and others in the last three decades, some of cutting tools still needs to have their cutting geometry restored due to wear through the sharpening operation with abrasive wheels. Sharpening aims to provide shape either to new cutting tools and worn ones. The efficiency of this operation depends on the correct selection of cutting parameters, machine tool and operator’s ability. In this process, if an improper cutting parameter is selected, the workpiece geometry can be compromised and, at the worst-case scenario, surface burning can occur, thereby leading to reduction of tool hardness. Tool hardness and strength are essential to withstand cutting forces during machining, for example, when a lathe tool bit is employed for cylindrical turning of a mild steel. In this context, this work presents an experimental study on the sharpening operation of HSS lathe tool bit using four different values of depth of cut. The grinding wheel employed was a straight cup white aluminium oxide, which is highly recommended for such operation. The workpiece material was the high speed steel (HSS) with hardness of 62 ± 2 HRC. The output parameters evaluated were the values of the rake angle, side cutting edge angle and end cutting edge angle, that were all measured with aid of a profile projector and a universal protractor (only for the rake angle). All the experimental trials were replicated once and the angles were measured five times. Statistical analyses of the results were performed to evaluate the statistical significance of comparisons and the measurement uncertainty was calculated. The results showed that all the angles were affected by the depth of cut, as expected, and the highest angles accuracy was obtained after machining with a depth of cut of 0.06 mm. No burrs and burning of the machined surfaces were observed.en
dc.description.affiliationUniversidade Federal de Uberlândia Faculdade de Engenharia Mecânica, Campus Santa Mônica
dc.description.affiliationUniversidade Estadual Paulista – UNESP Faculdade de Engenharia de Bauru, Av. Luiz Edmundo Carrijo Coube
dc.description.affiliationUnespUniversidade Estadual Paulista – UNESP Faculdade de Engenharia de Bauru, Av. Luiz Edmundo Carrijo Coube
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)
dc.description.sponsorshipIdCAPES: 00265-13
dc.description.sponsorshipIdCNPq: 00265-13
dc.description.sponsorshipIdFAPEMIG: 00265-13
dc.identifierhttp://dx.doi.org/10.1590/S1517-707620170003.0198
dc.identifier.citationRevista Materia, v. 22, n. 3, 2017.
dc.identifier.doi10.1590/S1517-707620170003.0198
dc.identifier.file2-s2.0-85027110590.pdf
dc.identifier.issn1517-7076
dc.identifier.lattes1455400309660081
dc.identifier.orcid0000-0002-9934-4465
dc.identifier.scopus2-s2.0-85027110590
dc.identifier.urihttp://hdl.handle.net/11449/179086
dc.language.isopor
dc.relation.ispartofRevista Materia
dc.relation.ispartofsjr0,188
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectAngles
dc.subjectDepth of cut
dc.subjectMachining
dc.subjectMeasurement uncertainty
dc.subjectSharpening cutting tools
dc.titleContribuição ao processo de afiação de ferramentas monocortantes de aço rápidopt
dc.title.alternativeContribution to sharpening operation of HSS lathe tool biten
dc.typeArtigo
unesp.author.lattes1455400309660081[6]
unesp.author.lattes1099152007574921[5]
unesp.author.orcid0000-0002-9934-4465[6]
unesp.author.orcid0000-0003-2675-4276[5]

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Artigos - Engenharia Mecânica - FEB