Nonedible vegetable oil-based cutting fluids for machining processes - a review

Cutting fluids are an inherent part of the modern manufacturing system. With the increase in the industrialization and development of new materials and processes, there has been a need for developing new cutting fluids with superior performance. For achieving this, cutting fluids have been produced from mineral oil and other additives. The additives used in the cutting fluids are carcinogenic in nature and are harmful to the workers and the environment. Mostly edible oils have been used as cutting fluids in machining. But it has been seen that nonedible oils have the potential to be used in the manufacturing sector to mitigate the detrimental effects of conventionally used cutting fluids without compromising on machining efficiency. The purpose of this review article is to apprise the readers with the current trend in the application of nonedible vegetable oils and their application in machining. This paper entails various aspects of cutting fluids and an up to date and exhaustive review on the latest literature on the effectiveness of nonedible oils and its modified versions, blended oils, ionic liquids, and nanoparticles as additives is done to understand the efficacy of nonedible vegetable oil-based cutting fluids.