Abstract
The pursuit of environmentally friendly cutting fluids is ongoing as the problems of traditional cutting fluids become more apparent. The bulk of vegetable oils used in studies are consumable and, if marketed, may conflict with human utilization, making cutting fluids more costly. However, few investigations on the use of lesser-known vegetable oils as cutting fluids have been conducted. As a result, the goal of this research is to examine how effective some lesser-known vegetable oils will be if used as a cutting fluid. Based on some physicochemical properties such as acid value and viscosity, the developed vegetable oil-based cutting fluids (watermelon and jatropha) were statistically analyzed using 24 full factorial techniques. This paper aimed at determining the interaction of the physicochemical properties on the developed cutting fluids. Emulsifiers, antifoam agents, biocide, and anti-corrosive agents were considered as natural variables. The effect of the natural variables on the acidity index and viscosity of cutting fluids were fully analyzed with ANOVA, contour, and surface plots. From the responses obtained from the experiment as explained by the independent variables (emulsifying agent, anti-corrosion agent, biocide, and antifoam agent), the watermelon seed oil-based cutting fluid was 89% accurate, while the jatropha oil-based cutting fluid was 75% accurate.
Highlights
As oilseeds are predominantly produced for their oil and meal, there has been an increase in the global production of oilseeds over the last 30 years [1]
The cutting functions are to reduce the heat generated during machining by cooling the machining interface; serve as a lubricant and protective film layer to the tool-workpiece interface to avoid the gumming of the cutting tool, and thereby enhance the tool life; and to enhance the surface quality of the machined product
According to various research reports, vegetable oil has the potential for fulfilling the cutting functions and non-cutting functions of cutting fluids because of its lubricity properties
Summary
As oilseeds are predominantly produced for their oil and meal, there has been an increase in the global production of oilseeds over the last 30 years [1]. Cutting fluids are primarily used in a machining operation to satisfy the cutting functions and non-cutting functions. The non-cutting functions take care of the environmental impacts and the health of the operator. According to various research reports, vegetable oil has the potential for fulfilling the cutting functions and non-cutting functions of cutting fluids because of its lubricity properties. Vegetable oil will serve as an essential part of man’s diet, but will improve sustainable practices in machining operations. Vegetable oils have attracted growing interest due to growing environmental advantages and the fact that they are based on renewable resources [2]
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