Effect of green machining on distortion and surface finishing in advanced ceramic

Detalhes bibliográficos
Autor(a) principal: Bukvic, Gill [UNESP]
Data de Publicação: 2012
Outros Autores: Fiocchi, Arthur A. [UNESP], Sanchez, Luiz E. A. [UNESP], Fortulan, Carlos A., Marinescu, Ioan D.
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://www.conferencetoolbox.org/NAMRC40/ViewAcceptedAbstracts.cfm
http://hdl.handle.net/11449/73765
Resumo: An alternative for grinding of sintered ceramic is the machining on the green state of the ceramic, which presents easy cutting without the introduction of harmful defects to its mechanical resistance. However, after sintering there are invariably distortions caused by the heterogeneous distribution of density gradients, which are located in the most outlying portions of the compacted workpiece. In order to minimize these density gradients, this study examined the influence of different allowance values and their corresponding influence in distortion after sintering alumina specimens with 99.8 % purity by turning operation using cemented carbide tool. Besides distortion, other output variables were analyzed, such as tool wear, cutting force and surface roughness of green and sintered ceramics. Results showed a distortion reduction up to 81.4%. Green machining is beneficial for reducing surface roughness in both green and sintered states. Cutting tool wear has a direct influence on surface roughness and cutting force.
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spelling Effect of green machining on distortion and surface finishing in advanced ceramicDensity gradientDistortionGreen machiningSurface finishingUniaxial pressingAdvanced CeramicsCemented carbide toolsCutting forcesDensity gradientsDistortion reductionHeterogeneous distributionsMechanical resistanceOutput variablesSintered ceramicsTool wearTurning operationsUni-axial pressingCeramic materialsCuttingDistortion (waves)FinishingGrinding (machining)Industrial researchManufactureSintered aluminaSurface roughnessSurface treatmentWear of materialsSinteringAn alternative for grinding of sintered ceramic is the machining on the green state of the ceramic, which presents easy cutting without the introduction of harmful defects to its mechanical resistance. However, after sintering there are invariably distortions caused by the heterogeneous distribution of density gradients, which are located in the most outlying portions of the compacted workpiece. In order to minimize these density gradients, this study examined the influence of different allowance values and their corresponding influence in distortion after sintering alumina specimens with 99.8 % purity by turning operation using cemented carbide tool. Besides distortion, other output variables were analyzed, such as tool wear, cutting force and surface roughness of green and sintered ceramics. Results showed a distortion reduction up to 81.4%. Green machining is beneficial for reducing surface roughness in both green and sintered states. Cutting tool wear has a direct influence on surface roughness and cutting force.Department of Mechanical Engineering Sao Paulo State University-Unesp, Bauru, Sao PauloDepartment of Mechanical Engineering University of Sao Paulo - USP, Sao Carlos, Sao PauloMechanical, Industry, and Manufacturing Engineering Department - MIME University of Toledo, Toledo, OHDepartment of Mechanical Engineering Sao Paulo State University-Unesp, Bauru, Sao PauloUniversidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)University of ToledoBukvic, Gill [UNESP]Fiocchi, Arthur A. [UNESP]Sanchez, Luiz E. A. [UNESP]Fortulan, Carlos A.Marinescu, Ioan D.2014-05-27T11:27:10Z2014-05-27T11:27:10Z2012-11-28info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject175-183http://www.conferencetoolbox.org/NAMRC40/ViewAcceptedAbstracts.cfmTransactions of the North American Manufacturing Research Institution of SME, v. 40, p. 175-183.1047-3025http://hdl.handle.net/11449/737652-s2.0-84869752929Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengTransactions of the North American Manufacturing Research Institution of SME0,130info:eu-repo/semantics/openAccess2024-06-28T13:55:19Zoai:repositorio.unesp.br:11449/73765Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:00:20.505295Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Effect of green machining on distortion and surface finishing in advanced ceramic
title Effect of green machining on distortion and surface finishing in advanced ceramic
spellingShingle Effect of green machining on distortion and surface finishing in advanced ceramic
Bukvic, Gill [UNESP]
Density gradient
Distortion
Green machining
Surface finishing
Uniaxial pressing
Advanced Ceramics
Cemented carbide tools
Cutting forces
Density gradients
Distortion reduction
Heterogeneous distributions
Mechanical resistance
Output variables
Sintered ceramics
Tool wear
Turning operations
Uni-axial pressing
Ceramic materials
Cutting
Distortion (waves)
Finishing
Grinding (machining)
Industrial research
Manufacture
Sintered alumina
Surface roughness
Surface treatment
Wear of materials
Sintering
title_short Effect of green machining on distortion and surface finishing in advanced ceramic
title_full Effect of green machining on distortion and surface finishing in advanced ceramic
title_fullStr Effect of green machining on distortion and surface finishing in advanced ceramic
title_full_unstemmed Effect of green machining on distortion and surface finishing in advanced ceramic
title_sort Effect of green machining on distortion and surface finishing in advanced ceramic
author Bukvic, Gill [UNESP]
author_facet Bukvic, Gill [UNESP]
Fiocchi, Arthur A. [UNESP]
Sanchez, Luiz E. A. [UNESP]
Fortulan, Carlos A.
Marinescu, Ioan D.
author_role author
author2 Fiocchi, Arthur A. [UNESP]
Sanchez, Luiz E. A. [UNESP]
Fortulan, Carlos A.
Marinescu, Ioan D.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade de São Paulo (USP)
University of Toledo
dc.contributor.author.fl_str_mv Bukvic, Gill [UNESP]
Fiocchi, Arthur A. [UNESP]
Sanchez, Luiz E. A. [UNESP]
Fortulan, Carlos A.
Marinescu, Ioan D.
dc.subject.por.fl_str_mv Density gradient
Distortion
Green machining
Surface finishing
Uniaxial pressing
Advanced Ceramics
Cemented carbide tools
Cutting forces
Density gradients
Distortion reduction
Heterogeneous distributions
Mechanical resistance
Output variables
Sintered ceramics
Tool wear
Turning operations
Uni-axial pressing
Ceramic materials
Cutting
Distortion (waves)
Finishing
Grinding (machining)
Industrial research
Manufacture
Sintered alumina
Surface roughness
Surface treatment
Wear of materials
Sintering
topic Density gradient
Distortion
Green machining
Surface finishing
Uniaxial pressing
Advanced Ceramics
Cemented carbide tools
Cutting forces
Density gradients
Distortion reduction
Heterogeneous distributions
Mechanical resistance
Output variables
Sintered ceramics
Tool wear
Turning operations
Uni-axial pressing
Ceramic materials
Cutting
Distortion (waves)
Finishing
Grinding (machining)
Industrial research
Manufacture
Sintered alumina
Surface roughness
Surface treatment
Wear of materials
Sintering
description An alternative for grinding of sintered ceramic is the machining on the green state of the ceramic, which presents easy cutting without the introduction of harmful defects to its mechanical resistance. However, after sintering there are invariably distortions caused by the heterogeneous distribution of density gradients, which are located in the most outlying portions of the compacted workpiece. In order to minimize these density gradients, this study examined the influence of different allowance values and their corresponding influence in distortion after sintering alumina specimens with 99.8 % purity by turning operation using cemented carbide tool. Besides distortion, other output variables were analyzed, such as tool wear, cutting force and surface roughness of green and sintered ceramics. Results showed a distortion reduction up to 81.4%. Green machining is beneficial for reducing surface roughness in both green and sintered states. Cutting tool wear has a direct influence on surface roughness and cutting force.
publishDate 2012
dc.date.none.fl_str_mv 2012-11-28
2014-05-27T11:27:10Z
2014-05-27T11:27:10Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
format conferenceObject
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.conferencetoolbox.org/NAMRC40/ViewAcceptedAbstracts.cfm
Transactions of the North American Manufacturing Research Institution of SME, v. 40, p. 175-183.
1047-3025
http://hdl.handle.net/11449/73765
2-s2.0-84869752929
url http://www.conferencetoolbox.org/NAMRC40/ViewAcceptedAbstracts.cfm
http://hdl.handle.net/11449/73765
identifier_str_mv Transactions of the North American Manufacturing Research Institution of SME, v. 40, p. 175-183.
1047-3025
2-s2.0-84869752929
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Transactions of the North American Manufacturing Research Institution of SME
0,130
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 175-183
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808129148660482048

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