Influence of the tool edge geometry on specific cutting energy at high-speed cutting
Autor(a) principal: | |
---|---|
Data de Publicação: | 2007 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S1678-58782007000300007 http://hdl.handle.net/11449/69759 |
Resumo: | This paper presents specific cutting energy measurements as a function of the cutting speed and tool cutting edge geometry. The experimental work was carried out on a vertical CNC machining center with 7,500 rpm spindle rotation and 7.5 kW power. Hardened steels ASTM H13 (50 HRC) were machined at conventional cutting speed and high-speed cutting (HSC). TiN coated carbides with seven different geometries of chip breaker were applied on dry tests. A special milling tool holder with only one cutting edge was developed and the machining forces needed to calculate the specific cutting energy were recorded using a piezoelectric 4-component dynamometer. Workpiece roughness and chip formation process were also evaluated. The results showed that the specific cutting energy decreased 15.5% when cutting speed was increased up to 700%. An increase of 1 °in tool chip breaker chamfer angle lead to a reduction in the specific cutting energy about 13.7% and 28.6% when machining at HSC and conventional cutting speed respectively. Furthermore the workpiece roughness values evaluated in all test conditions were very low, closer to those of typical grinding operations (∼0.20 μm). Probable adiabatic shear occurred on chip segmentation at HSC Copyright © 2007 by ABCM. |
id |
UNSP_03521b9c6252ec80c8c5499daab6a503 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/69759 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Influence of the tool edge geometry on specific cutting energy at high-speed cuttingHigh-speed cuttingSpecific cutting energyTool edge geometryCarbidesDynamometersMachining centersMilling (machining)Cutting energy measurementsSpindle rotationCutting toolsThis paper presents specific cutting energy measurements as a function of the cutting speed and tool cutting edge geometry. The experimental work was carried out on a vertical CNC machining center with 7,500 rpm spindle rotation and 7.5 kW power. Hardened steels ASTM H13 (50 HRC) were machined at conventional cutting speed and high-speed cutting (HSC). TiN coated carbides with seven different geometries of chip breaker were applied on dry tests. A special milling tool holder with only one cutting edge was developed and the machining forces needed to calculate the specific cutting energy were recorded using a piezoelectric 4-component dynamometer. Workpiece roughness and chip formation process were also evaluated. The results showed that the specific cutting energy decreased 15.5% when cutting speed was increased up to 700%. An increase of 1 °in tool chip breaker chamfer angle lead to a reduction in the specific cutting energy about 13.7% and 28.6% when machining at HSC and conventional cutting speed respectively. Furthermore the workpiece roughness values evaluated in all test conditions were very low, closer to those of typical grinding operations (∼0.20 μm). Probable adiabatic shear occurred on chip segmentation at HSC Copyright © 2007 by ABCM.São Paulo State University - UNESP Engineering Faculty of Ilha Solteira, Av. Brasil Centro, 56, 15385-000 Ilha Solteira, SPUniversity of São Paulo - USP Engineering School of São Carlos, Av. Trabalhador Sãocarlense, 400, 13566-590 São Carlos, SPSão Paulo State University - UNESP Engineering Faculty of Ilha Solteira, Av. Brasil Centro, 56, 15385-000 Ilha Solteira, SPUniversidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Rodrigues, Alessandro R. [UNESP]Coelho, Reginaldo T.2014-05-27T11:22:31Z2014-05-27T11:22:31Z2007-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article279-283application/pdfhttp://dx.doi.org/10.1590/S1678-58782007000300007Journal of the Brazilian Society of Mechanical Sciences and Engineering, v. 29, n. 3, p. 279-283, 2007.1678-58781806-3691http://hdl.handle.net/11449/6975910.1590/S1678-58782007000300007S1678-58782007000300007WOS:0002554036000072-s2.0-362489852592-s2.0-36248985259.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of the Brazilian Society of Mechanical Sciences and Engineering1.6270,362info:eu-repo/semantics/openAccess2023-11-03T06:12:09Zoai:repositorio.unesp.br:11449/69759Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:50:27.100725Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Influence of the tool edge geometry on specific cutting energy at high-speed cutting |
title |
Influence of the tool edge geometry on specific cutting energy at high-speed cutting |
spellingShingle |
Influence of the tool edge geometry on specific cutting energy at high-speed cutting Rodrigues, Alessandro R. [UNESP] High-speed cutting Specific cutting energy Tool edge geometry Carbides Dynamometers Machining centers Milling (machining) Cutting energy measurements Spindle rotation Cutting tools |
title_short |
Influence of the tool edge geometry on specific cutting energy at high-speed cutting |
title_full |
Influence of the tool edge geometry on specific cutting energy at high-speed cutting |
title_fullStr |
Influence of the tool edge geometry on specific cutting energy at high-speed cutting |
title_full_unstemmed |
Influence of the tool edge geometry on specific cutting energy at high-speed cutting |
title_sort |
Influence of the tool edge geometry on specific cutting energy at high-speed cutting |
author |
Rodrigues, Alessandro R. [UNESP] |
author_facet |
Rodrigues, Alessandro R. [UNESP] Coelho, Reginaldo T. |
author_role |
author |
author2 |
Coelho, Reginaldo T. |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
Rodrigues, Alessandro R. [UNESP] Coelho, Reginaldo T. |
dc.subject.por.fl_str_mv |
High-speed cutting Specific cutting energy Tool edge geometry Carbides Dynamometers Machining centers Milling (machining) Cutting energy measurements Spindle rotation Cutting tools |
topic |
High-speed cutting Specific cutting energy Tool edge geometry Carbides Dynamometers Machining centers Milling (machining) Cutting energy measurements Spindle rotation Cutting tools |
description |
This paper presents specific cutting energy measurements as a function of the cutting speed and tool cutting edge geometry. The experimental work was carried out on a vertical CNC machining center with 7,500 rpm spindle rotation and 7.5 kW power. Hardened steels ASTM H13 (50 HRC) were machined at conventional cutting speed and high-speed cutting (HSC). TiN coated carbides with seven different geometries of chip breaker were applied on dry tests. A special milling tool holder with only one cutting edge was developed and the machining forces needed to calculate the specific cutting energy were recorded using a piezoelectric 4-component dynamometer. Workpiece roughness and chip formation process were also evaluated. The results showed that the specific cutting energy decreased 15.5% when cutting speed was increased up to 700%. An increase of 1 °in tool chip breaker chamfer angle lead to a reduction in the specific cutting energy about 13.7% and 28.6% when machining at HSC and conventional cutting speed respectively. Furthermore the workpiece roughness values evaluated in all test conditions were very low, closer to those of typical grinding operations (∼0.20 μm). Probable adiabatic shear occurred on chip segmentation at HSC Copyright © 2007 by ABCM. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-07-01 2014-05-27T11:22:31Z 2014-05-27T11:22:31Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/S1678-58782007000300007 Journal of the Brazilian Society of Mechanical Sciences and Engineering, v. 29, n. 3, p. 279-283, 2007. 1678-5878 1806-3691 http://hdl.handle.net/11449/69759 10.1590/S1678-58782007000300007 S1678-58782007000300007 WOS:000255403600007 2-s2.0-36248985259 2-s2.0-36248985259.pdf |
url |
http://dx.doi.org/10.1590/S1678-58782007000300007 http://hdl.handle.net/11449/69759 |
identifier_str_mv |
Journal of the Brazilian Society of Mechanical Sciences and Engineering, v. 29, n. 3, p. 279-283, 2007. 1678-5878 1806-3691 10.1590/S1678-58782007000300007 S1678-58782007000300007 WOS:000255403600007 2-s2.0-36248985259 2-s2.0-36248985259.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of the Brazilian Society of Mechanical Sciences and Engineering 1.627 0,362 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
279-283 application/pdf |
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_ |
1808128707881074688 |