%0 Journal Article
%4 sid.inpe.br/mtc-m18@80/2008/12.18.13.39
%2 sid.inpe.br/mtc-m18@80/2008/12.18.13.39.09
%@doi 10.4028/0-87849-362-X.554
%F self-archiving-INPE-MCTIC-GOV-BR
%@issn 0255-5476
%@secondarykey INPE--PRE/
%@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S}
%A Souza, J. Vitor C.,
%A Nono, Maria do Carmo Andrade,
%A Mineiro, S. L.,
%A Ribeiro, M. V.,
%A Silva, O. M. M.,
%@group LAS-CTE-INPE-MCT-BR
%@group LAS-CTE-INPE-MCT-BR
%@group LAS-CTE-INPE-MCT-BR
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation FEG-UNESP
%@affiliation CTA-IAE/AMR
%T Evaluation of the Performance of á-SiAlON Tool when Turning Ti–6Al– 4V Alloy without Coolant
%B Materials Science Forum
%D 2008
%V 591/593
%K Cutting tools, Tools, Coolants, Titanium base alloys, Performance evaluation, Tool life, Turning (machining), Tool wear, Failure modes, Chipping, Sialons.
%X Due to their high hardness and wear resistance, Si3N4 based ceramics are one of the most suitable cutting tool materials for machining cast iron, nickel alloys and hardened steels. However, their high degree of brittleness usually leads to inconsistent results and sudden catastrophic failures. This necessitates a process optimization when machining superalloys with Si3N4 based ceramic cutting tools. The tools are expected to withstand the heat and pressure developed when machining at higher cutting conditions because of their high hardness and melting point. This paper evaluates the performance of á-SiAlON tool in turning Ti6Al4V alloy at high cutting conditions, up to 250 m min$1$1, without coolant. Tool wear, failure modes and temperature were monitored to access the performance of the cutting tool. Test results showed that the performance of á-SiAlON tool, in terms of tool life, at the cutting conditions investigated is relatively poor due probably to rapid notching and excessive chipping of the cutting edge. These facts are associated with adhesion and diffusion wear rate that tends to weaken the bond strength of the cutting tool.
%P 554-559
%O Advanced Powder Technology VI: Selected peer reviewed papers from the SIXTH INTERNATIONAL LATIN AMERICAN CONFERENCE ON POWDER TECHNOLOGY - PTECH2007, November 07-10, 2007, Buzios - Rio de Janeiro - Brazil
%@secondarytype PRE PI
%@dissemination WEBSCI; PORTALCAPES.
%@area FISMAT
%@secondarymark A_ENGENHARIAS_I A_ENGENHARIAS_II A_ENGENHARIAS_IV B_ECOLOGIA_E_MEIO_AMBIENTE B_EDUCAÇÃO_FÍSICA B_GEOCIÊNCIAS B_INTERDISCIPLINAR B_MEDICINA_II B_ODONTOLOGIA C_ASTRONOMIA_/_FÍSICA C_QUÍMICA
%3 souza_evaluation.pdf
%@usergroup administrator
%@usergroup banon
%@usergroup marciana
%@usergroup simone
%@documentstage not transferred
%@versiontype publisher
%@archivingpolicy denypublisher allowfinaldraft
%@nexthigherunit 8JMKD3MGPCW/3ESR3H2