2026-06-01T15:46:02Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/73392023-03-21T10:39:13Zcom_10259_4219com_10259_5086com_10259_2604col_10259_4220

Baldin, Vitor 0d71e0f1-6520-4898-bf42-705f76fe5cd9 600 Ribeiro da Silva, Leonardo Rosa 9a3f1ad7-3dc1-4554-9601-a80aa27b411f 600 Valentim Gelamo, Rogério 454bda8c-13ff-404a-8e71-307f3e87f7b2 600 Bustillo Iglesias, Andrés 81 600 0000-0003-2855-7532 Bautista da Silva, Rosemar 1b9c3535-ff9d-465b-9da7-01e219fcb656 600 Khanna, Navneet 34058ee7-dc51-4755-a21c-a7a291e3746c 600 Rocha Machado, Alisson bf5ab5d6-962d-48a6-a3e4-ef1574503029 600 2023-01-26T13:36:34Z 2023-01-26T13:36:34Z 2022-08 http://hdl.handle.net/10259/7339 10.3390/lubricants10080193 2075-4442 The growing need to increase productivity and pressures for more sustainable manufacturing processes lead to a shift to less harmful lubrication systems that are less harmful to nature and the people involved. The minimal quantity lubrication system (MQL) stands out in this respect, especially in interrupted cutting processes such as milling, due to the cutting interface’s highly dynamic and chaotic nature. Using graphene sheets in cutting fluids also increases the efficiency of machining processes. This work investigates the influence on thermophysical and tribological properties of concentrations of 0.05 wt% and 0.1 wt% of graphene sheets in two vegetable-based and one mineralbased cutting fluids. The fluids are first characterized (viscosity, thermal conductivity, diffusivity, and wettability) and tested in reciprocating and ramp milling tests; all experiments are based on norms. The results show that the experiments with cutting fluids (with and without graphene) showed better tribological behavior than those in dry conditions. The graphene sheets alter the thermo-physical and tribological properties of the cutting fluids. The MQL15 vegetable-based fluid showed better lubricating properties in the milling tests, with better conditions for tribosystem chip–tool–workpiece interfaces, which makes the friction coefficient, and wear rate stable. Vegetable-based cutting fluids, even in minimum quantities and with graphene nanoparticles, have a high potential for increasing the efficiency and sustainability of the milling process. This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brasil (CAPES)—Finance Code 001 and CNPq. application/pdf eng MDPI Lubricants. 2022, V. 10, n. 8, 193 https://doi.org/10.3390/lubricants10080193 info:eu-repo/grantAgreement/CAPES//001/ info:eu-repo/grantAgreement/CAPES//CNPq/ Atribución 4.0 Internacional http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess Graphene nanoparticles Reciprocate sliding Lubricity of cutting fluids Ramp milling test Vegetable-based cutting fluid Informática Computer science Influence of Graphene Nanosheets on Thermo-Physical and Tribological Properties of Sustainable Cutting Fluids for MQL Application in Machining Processes info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Lubricants 10 8 THUMBNAIL Baldin-lubricants_2022.pdf.jpg Baldin-lubricants_2022.pdf.jpg IM Thumbnail image/jpeg 3444 https://riubu.ubu.es/bitstream/10259/7339/4/Baldin-lubricants_2022.pdf.jpg 1205f11120ea1188cff53798394b6d04 MD5 4 LICENSE license.txt license.txt text/plain; charset=utf-8 999 https://riubu.ubu.es/bitstream/10259/7339/3/license.txt b295bcbce42e2caabeb0c623d3860c06 MD5 3 CC-LICENSE license_rdf license_rdf application/rdf+xml; charset=utf-8 908 https://riubu.ubu.es/bitstream/10259/7339/2/license_rdf 0175ea4a2d4caec4bbcc37e300941108 MD5 2 ORIGINAL Baldin-lubricants_2022.pdf Baldin-lubricants_2022.pdf application/pdf 8596300 https://riubu.ubu.es/bitstream/10259/7339/1/Baldin-lubricants_2022.pdf 0633e90214f4ae7ad136866aab658971 MD5 1 10259/7339 oai:riubu.ubu.es:10259/7339 2023-03-21 11:39:13.43 Repositorio Institucional de la Universidad de Burgos bubrep@ubu.es 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