International Journal of Science, Engineering and TechnologyAuthors: Dr. Manoj Kumar Singh, Roshan Kumar
Abstract: Growing environmental concerns and stricter industry regulations have amplified the need for sustainable machining methods and eco-friendly cutting fluids. Traditional mineral oil-based lubricants pose significant environmental and health risks due to their non-biodegradable nature and toxic ingredients. This research presents a structured decision-making framework for selecting sustainable cutting fluids using the Fuzzy Analytical Hierarchy Process (FAHP). Four options—Neem seed oil, Jatropha oil, Pongamia oil, and mineral oil — were evaluated based on four main criteria: biodegradability, health effects, tool life, and surface finish. The FAHP model was validated through sensitivity analysis and experimental testing during the turning of AISI 1045 steel. Results show Neem seed oil achieved the highest overall sustainability score, supported by its excellent tool life (0.18 mm wear) and surface roughness (Ra = 0.46 µm). The model's consistency ratio was below 0.1, confirming dependable decisions. This combined FAHP experimental approach offers a robust, reproducible framework for selecting sustainable fluids, aiding Indian machining industries in replacing mineral oils with biodegradable, non-toxic, and cost-effective alternatives.
DOI: http://doi.org/10.5281/zenodo.17484238
