Vegetable oil-based cutting fluids and its behavioral characteristics in machining processes: a review

Abstract

Purpose This paper aims to provide a detailed review of various cutting fluids (CFs). Design/methodology/approach Friction and wear are inevitable in machine parts in motion. The industrial sector uses various kinds of lubricants, which include engine oils, CFs, hydraulic fluids, greases, etc. to control friction and wear. The main purpose of using CF is to remove heat produced during machining and to reduce cutting forces, tool wear and energy associated with it. Thus, it increases the productivity and quality of the manufacturing process. But more than 80% of the CFs used in the industries now are mineral oil-based. These mineral oils and additives are highly undesirable because of their toxicity, nonbiodegradability, pollution and ecological problems. Hence, these petroleum-based oils in the lubrication system can be substituted with alternatives such as vegetable-based CF. Several studies are being conducted in the field of eco-friendly CFs. Because of the variance in fatty acid profile and availability, the selection of vegetable oils (VOs) is another problem faced nowadays. The present study is focused on bio-based oils and many eco-friendly additives. Various machining processes and comparisons relating to the same have also been made. The aim is to minimize the use of mineral oil and thereby introduce sustainability in production. Findings In this present study, bio-based oils, additives and various characteristic behavior of them in machining are being discussed. The VOs are found to be a potential base oil for industrial CFs. Originality/value This paper describes the importance of sustainable CFs.

Microalgae Oil-Based Metal Working Fluids for Sustainable Minimum Quantity Lubrication (MQL) Operations—A Perspective

“…In this sense, the exploration of biodegradable raw materials to be used as straight oils in MQL or in the production of green emulsions in MWFs has been the study topic of many worldwide research groups lately. It has been reflected in a huge amount of the literature reporting on the use and cutting performance of straight vegetable oils or synthetic esters as renewable and biodegradable bio-oils to replace mineral oils in MWFs for different machining applications, which has been recently (last five years) compiled in many comprehensive review articles [1,4,6,9,[14][15][16][17][18][19]. Those reviews addressed thorough analyses and discussions about state-of-the-art challenges and physicochemical, tribological and cutting performance properties of the most popular and promising bio-oils in MWFs.…”

Prediction of Thrust Force and Torque for High-Speed Drilling of AL6061 with TMPTO-Based Bio-Lubricants Using Machine Learning

“…Polyol ester-based vegetable oils have shown promising properties compared to those of mineral-based lubricants during the high-speed drilling of aluminum and stainlesssteel material [16][17][18]. Using graphene-based nanofluid leads to a substantial reduction in drilling torque, which is approximately 25% lower compared to that of a typical emulsion lubricant.…”

Tribological study of sunflower TMP ester and silica nanoparticles additives for hydrodynamic journal bearing application under boundary lubrication condition

“…The current issue and full text archive of this journal is available on Emerald Insight at: https://www.emerald.com/insight/0036-8792.htm mineral oil-based lubricants to improve performance in boundary lubrication condition are generally not eco-friendly (Alves et al, 2013). Vegetable oil-based lubricants have shown significant potential to replace mineral oil-based lubricants as eco-friendly, biodegradable and nontoxic lubricants (Hussain et al, 2021a;Pranav et al, 2021). The major drawback of vegetable oil-based lubricants is their lower thermo-oxidative stability.…”