Narayan Agrawal’s research while affiliated with Delhi Skill and Entrepreneurship University and other places

Manufacturing industries use cutting fluid in huge quantities. It has been reported multiple times that these conventional cutting fluids are toxic and not safe for humans and the environment. Vegetable oils are a good alternative to conventional cutting fluids. Non-edible oils should be explored for their applicability as cutting fluid. In this research, water-soluble cutting fluids are formulated from non-edible oils – Castor oil and Karanja oil and food-grade surfactants – for preparing totally green cutting fluids using two surfactants mixture. The performance of these two developed cutting fluids is compared with a conventional cutting fluid in machining steel in an attempt to provide an environment-friendly alternate to the industry. The cutting fluid formulated from Karanja oil was able to reduce the cutting force by 11.12%, surface roughness by 23.57%, and tool wear by 22.77% to the conventional mineral oil-based cutting fluid. However, the performance of castor oil-based cutting fluid was lower than Karanja oil-based cutting fluid due to its much higher viscosity. The developed cutting fluids are safe for humans and the environment. The results indicate positively toward the use of non-edible oil-based cutting fluids as an alternate to the mineral oil-based cutting fluid.

Cutting fluids are required for machining operations. However, the constituents of the mineral oil-based cutting fluids used in the industry have carcinogenic effects on the human and a negative impact on the environment. Non-edible vegetable oils can be a good potential to be used as a feasible alternative. A cutting fluid is formulated from non-edible vegetable oil using eco-friendly constituents and balancing the lipophilicity and hydrophilicity of the oil. The formulated cutting fluid and its concentrate was found to be stable for a long duration. Performance comparison was carried out with a conventional mineral oil-based cutting fluid and the results shows that the non-edible vegetable oil-based cutting fluid was able to reduce the cutting forces and surface roughness and also there was a significant reduction in tool wear. ANOVA results showed that the type of cutting fluid has a significant contribution on the surface roughness (69.15%) and tool wear (56.85%). The formulated cutting fluid has better performance and the results point positively toward promoting non-edible oil-based cutting fluid in machining.

Cutting fluids are required in huge amount in the modern machining methods. Cutting fluids are needed for providing lubrication as well as cooling the workpiece during machining. Cutting fluids are made of mineral oils and have many drawbacks including many health hazards and environment impact. Various other methods of cutting fluid delivery are being tested in order to reduce the effects of cutting fluids in machining. One such method is minimum quantity lubrication. Many researchers have shown the effectiveness of MQL over the conventional flood method. However, the MQL method has drawbacks in terms of heat carrying capacity. In order to increase the effectiveness of the MQL method, many advanced methods are being tested for improving the cooling efficiency of the MQL method. One of the methods is ultrasonic method. This method is currently in nascent stages and is being researched upon as a viable alternative to the conventional MQL method. This paper describes this hybrid delivery method in machining.

MQL has gained lot of attention in the past decade owing to its effectiveness over the conventional fluid delivery method. Conventional cutting fluid delivery methods have major drawback of being used in large quantity and dangerous effect on environment and workers health. MQL has emerged as a viable alternate to the conventional fluid delivery method. However, lately many more methods have been found to be more effective than the raw MQL method. Different strategies of delivering the cutting fluid directly into the cutting zone have been conceptualized and tested. These techniques are collectively coined as “Hybrid Techniques”. This paper describes the various hybrid delivery methods in machining with their benefits and drawbacks.

Cutting fluids are required in huge amount in the modern machining methods. Cutting fluids are needed for providing lubrication as well as cooling the workpiece during machining. Cutting fluids are made of mineral oils and have many drawbacks including many health hazards and environment impact. Various other methods of cutting fluid delivery are being tested in order to reduce the effects of cutting fluids in machining. One such method is minimum quantity lubrication. Many researchers have shown the effectiveness of MQL over the conventional flood method. However the MQL method has drawbacks in terms of heat carrying capacity. In order to increase the effectiveness of the MQL method many advanced methods are being tested for improving the cooling efficiency of the MQL method. One of the methods is ultrasonic method. This method is currently in nascent stages and is being researched upon as a viable alternative to the conventional MQL method. This paper describes this hybrid delivery method in machining.

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.

Cutting fluids play a major role in the metal industry. They are used for having increased material removal rates and increasing the quality of the machined product. The cutting fluids have been used for many decades after their efficacy in increasing productivity was established. Since the advent of cutting fluids the market has flooded with different composition of cutting fluids. All these are mineral oil based and comprise different additives or performance enhancers. However, the latest trend in cutting fluids use is employing vegetable oils as base oil for formulating cutting fluids. Cutting fluids formulated from vegetable oils are a promising source of increasing productivity in the industry because of their thermal properties. It is, however, difficult to formulate stable water-soluble cutting fluid. Also, it has been observed that the chemical constituent of a cutting fluid behaves differently on the surface of the workpiece during machining operation. In this study different cutting fluids were formulated from edible oil and non-edible oil and the performance in terms of temperature was compared and reported.

Cutting fluids are the category of metalworking fluids which are used in metal machining operation. Application of cutting fluids eases metal removal and enhances the productivity of the industry. Cutting fluids have been used for many decades. Lately the industry is looking toward shifting to using biodegradable cutting fluids. In the last decade many researchers have found that cutting fluids derived from edible oils have a potential to be used in place of the mineral oil based products. However there has not been much reported literature on the surface chemistry of the cutting fluids and how they affect the machining outcomes. In this work experiment was done to study the way in which the viscosity of a non mineral oil based cutting fluid affects the surface roughness of the machining product and the interaction mechanism of cutting fluid with the surface is tried to be deduced from the outcome.