Formulation of SustainableWater-Based Cutting Fluids with Polyol Esters for Machining Titanium Alloys

Benedicto, Elisabet, Rubio Alvir, Eva María, Aubouy, Laurent y Saéz-Nuño, María Ana . (2021) Formulation of SustainableWater-Based Cutting Fluids with Polyol Esters for Machining Titanium Alloys. Metals 11(5), 773

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Título Formulation of SustainableWater-Based Cutting Fluids with Polyol Esters for Machining Titanium Alloys
Autor(es) Benedicto, Elisabet
Rubio Alvir, Eva María
Aubouy, Laurent
Saéz-Nuño, María Ana
Materia(s) Ciencias
Ingeniería Industrial
Abstract The machinability of titanium alloys still represents a demanding challenge and the development of new clean technologies to lubricate and cool is greatly needed. As a sustainable alternative to mineral oil, esters have shown excellent performance during machining. Herein, the aim of this work is to investigate the influence of esters’ molecular structure in oil-in-water emulsions and their interaction with the surface to form a lubricating film, thus improving the efficiency of the cutting fluid. The lubricity performance and tool wear protection are studied through film formation analysis and the tapping process on Ti6Al4V. The results show that the lubricity performance is improved by increasing the formation of the organic film on the metal surface, which depends on the ester’s molecular structure and its ability to adsorb on the surface against other surface-active compounds. Among the cutting fluids, noteworthy results are obtained using trimethylolpropane trioleate, which increases the lubricating film formation (containing 62% ester), thus improving the lubricity by up to 12% and reducing the torque increase due to tool wear by 26.8%. This work could be very useful for fields where often use difficult-to-machine materials—such as Ti6Al4V or γ-TiAl—which require large amounts of cutting fluids, since the formulation developed will allow the processes to be more efficient and sustainable.
Palabras clave cutting fluid
esters
lubrication
l tool wear
titanium alloys
Editor(es) MDPI
Fecha 2021-05-08
Formato application/pdf
Identificador bibliuned:DptoICyF-ETSI-Articulos-Emrubio-0003
http://e-spacio.uned.es/fez/view/bibliuned:DptoICyF-ETSI-Articulos-Emrubio-0003
DOI - identifier https://doi.org/10.3390/met11050773
ISSN - identifier 2075-4701
Nombre de la revista Metals
Número de Volumen 11
Número de Issue 5
Publicado en la Revista Metals 11(5), 773
Idioma eng
Versión de la publicación publishedVersion
Tipo de recurso Article
Derechos de acceso y licencia http://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
Tipo de acceso Acceso abierto
Notas adicionales The registered version of this article, first published in Metals 11(5),773, is available online at the publisher's website: https://doi.org/10.3390/met11050773
Notas adicionales La versión registrada de este artículo, publicado por primera vez en Metals 11(5), 773, está disponible en línea en el sitio web del editor: https://doi.org/10.3390/met11050773

 
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Creado: Fri, 02 Feb 2024, 21:55:13 CET