The Role of Surfactant Structure on the Development of a Sustainable and Effective Cutting Fluid for Machining Titanium Alloys
In cutting operations of titanium alloys, most of the problems are related to the high consumption of cutting tools due to excessive wear. An improvement of metalworking fluid (MWF) technology would increase the productivity, sustainability, and quality of machining processes by lubricating and cool...
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doaj-d873fe6082354501b685075d20f54ec32020-11-25T02:00:21ZengMDPI AGMetals2075-47012020-10-01101388138810.3390/met10101388The Role of Surfactant Structure on the Development of a Sustainable and Effective Cutting Fluid for Machining Titanium AlloysElisabet Benedicto0Eva María Rubio1Diego Carou2Coral Santacruz3Department of Manufacturing Engineering, Industrial Engineering School, Universidad Nacional de Educación a Distancia (UNED), St/Juan del Rosal 12, E28040 Madrid, SpainDepartment of Manufacturing Engineering, Industrial Engineering School, Universidad Nacional de Educación a Distancia (UNED), St/Juan del Rosal 12, E28040 Madrid, SpainDepartment of Design in Engineering, University of Vigo, Campus As Lagoas, 32004 Ourense, SpainDepartment of Surface Chemistry, Leitat Technological Center, C/Innovació 2, E08225 Terrassa, SpainIn cutting operations of titanium alloys, most of the problems are related to the high consumption of cutting tools due to excessive wear. An improvement of metalworking fluid (MWF) technology would increase the productivity, sustainability, and quality of machining processes by lubricating and cooling. In this research article, the authors varied the surfactant’s charge, the hydrocarbon chain length, and the ethoxylation degree. Surfactants were dispersed at 1.2 mM in water and trimethylolpropane oleate to produce water-based MWF. Infrared reflection absorption spectroscopy and total organic carbon analysis were used to study the influence of surfactant structure on the film forming ability of the emulsion and performance was studied on Ti6Al4V using tapping torque test. The results showed that by changing the molecular structure of the surfactant, it is possible to vary the affinity between the ester and the substrate and reach an optimal combination, which improves the formation of a tribofilm. The mixture with anionic surfactants has good tribology performance, while non-ionic surfactants shorten the tool’s life. Moreover, the increase in the hydrocarbon chain length and the number of ethoxylations of surfactants promotes the adhesion of ester onto the metal surface, improving the lubricity properties of environmentally friendly MWF.https://www.mdpi.com/2075-4701/10/10/1388metalworking fluidtool weartool lifeTi6Al4Vsurfactant |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Elisabet Benedicto Eva María Rubio Diego Carou Coral Santacruz |
spellingShingle |
Elisabet Benedicto Eva María Rubio Diego Carou Coral Santacruz The Role of Surfactant Structure on the Development of a Sustainable and Effective Cutting Fluid for Machining Titanium Alloys Metals metalworking fluid tool wear tool life Ti6Al4V surfactant |
author_facet |
Elisabet Benedicto Eva María Rubio Diego Carou Coral Santacruz |
author_sort |
Elisabet Benedicto |
title |
The Role of Surfactant Structure on the Development of a Sustainable and Effective Cutting Fluid for Machining Titanium Alloys |
title_short |
The Role of Surfactant Structure on the Development of a Sustainable and Effective Cutting Fluid for Machining Titanium Alloys |
title_full |
The Role of Surfactant Structure on the Development of a Sustainable and Effective Cutting Fluid for Machining Titanium Alloys |
title_fullStr |
The Role of Surfactant Structure on the Development of a Sustainable and Effective Cutting Fluid for Machining Titanium Alloys |
title_full_unstemmed |
The Role of Surfactant Structure on the Development of a Sustainable and Effective Cutting Fluid for Machining Titanium Alloys |
title_sort |
role of surfactant structure on the development of a sustainable and effective cutting fluid for machining titanium alloys |
publisher |
MDPI AG |
series |
Metals |
issn |
2075-4701 |
publishDate |
2020-10-01 |
description |
In cutting operations of titanium alloys, most of the problems are related to the high consumption of cutting tools due to excessive wear. An improvement of metalworking fluid (MWF) technology would increase the productivity, sustainability, and quality of machining processes by lubricating and cooling. In this research article, the authors varied the surfactant’s charge, the hydrocarbon chain length, and the ethoxylation degree. Surfactants were dispersed at 1.2 mM in water and trimethylolpropane oleate to produce water-based MWF. Infrared reflection absorption spectroscopy and total organic carbon analysis were used to study the influence of surfactant structure on the film forming ability of the emulsion and performance was studied on Ti6Al4V using tapping torque test. The results showed that by changing the molecular structure of the surfactant, it is possible to vary the affinity between the ester and the substrate and reach an optimal combination, which improves the formation of a tribofilm. The mixture with anionic surfactants has good tribology performance, while non-ionic surfactants shorten the tool’s life. Moreover, the increase in the hydrocarbon chain length and the number of ethoxylations of surfactants promotes the adhesion of ester onto the metal surface, improving the lubricity properties of environmentally friendly MWF. |
topic |
metalworking fluid tool wear tool life Ti6Al4V surfactant |
url |
https://www.mdpi.com/2075-4701/10/10/1388 |
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