Formulation of rice bran oil-based green cutting fluid with holy basil oil and clove oil as bio-additives

The enormous consumption of non-biodegradable and toxic mineral oil-based cutting fluids has affected the environment and human health in a hazardous manner. The development of a new eco-friendly cutting fluid is a necessity. Vegetable oils, which hold similar lubricant properties to that of commercial mineral oil, are considered as an alternative solution. The additives used in commercial lubricating fluids are another major reason for their toxicity. In the present work, rice bran oil-based cutting fluid is formulated using food-grade emulsifiers like Tween 80 and Span 80 with bio-additives like holy basil oil and clove oil. The addition of herbal oils is found to improve the oxidative and corrosive stability of the base oil. The experimental results indicated that the formulated green cutting fluid could replace mineral oil-based cutting fluid. The performance test on the lathe during the turning operation revealed that the formulated green cutting fluid had shown lower cutting forces when compared with that of the commercial cutting fluid.