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Influence of built up edge on the surface topography of Ti-15Mo

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Autor(es):
Paris, D. ; Pivotto, L. B. ; Ventura, C. E. H. ; Antonialli, A. I. S.
Número total de Autores: 4
Tipo de documento: Artigo Científico
Fonte: 7TH CIRP CONFERENCE ON SURFACE INTEGRITY, CIRP CSI 2024; v. 87, p. 5-pg., 2020-01-01.
Resumo

Titanium alloys have been increasingly used in biomedical applications due to their mechanical and corrosion resistance, non-toxicity, and low modulus of elasticity. This latter property leads to intense material deformation during cutting and contributes to the formation of built up edge, which changes tool geometry and chip formation, altering workpiece surface quality. Its instability should also be taken into account, as it contributes to a high dispersion of roughness results. Considering the relevance of such effects in machining of a beta titanium alloy, this paper proposes a characterization of the built up edge formed during turning of Ti-15Mo and the correlation of its geometry with different surface roughness parameters. Obtained results show that the effective rake angle generated by the built up edge changes within a narrow range but its increase contributes to lower reduced peak height values obtained from the Abbott-Firestone curve. (c) 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) (AU)

Processo FAPESP: 15/15622-2 - Influência dos parâmetros de retificação na fabricação de insertos de metal duro sobre seu desempenho no torneamento de uma liga de titânio
Beneficiário:Carlos Eiji Hirata Ventura
Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores
Processo FAPESP: 17/12304-5 - EMU concedido no processo 15/15622-2: retificadora CNC para preparação de insertos de corte
Beneficiário:Carlos Eiji Hirata Ventura
Modalidade de apoio: Auxílio à Pesquisa - Programa Equipamentos Multiusuários
Processo FAPESP: 17/12309-7 - EMU concedido no processo 15/15622-2: microscópio para análise de imagens tridimensionais
Beneficiário:Carlos Eiji Hirata Ventura
Modalidade de apoio: Auxílio à Pesquisa - Programa Equipamentos Multiusuários