Effect of Surface Topography and Roughness on the Wetting Characteristics of an Indigenously Developed Green Cutting Fluid (GCF)

Abstract

The production of cutting fluids from petroleum-based products has resulted in significant improvements in the current and rising machining sector. However, the majority of cutting fluids are costly, harmful, and unsustainable mineral base oils. A vital concern lies in their improper disposal, as it can cause pollution of groundwater, as well as pollute agro-based farm products. To counter these hazardous effects, the synthesis of an eco-friendly alternative was crucial. By mixing nontoxic emulsifiers and natural ingredients, a coconut oil-based Green Cutting Fluid (GCF) was created. Many of the defining requirements of commercial formulations are satisfied by GCF while yet being ecologically friendly. This study’s goal is to determine how surface topography and roughness affect the GCF’s ability to wet surfaces made of EN31 steel, titanium alloy Ti6Al4V, and aluminum alloy AA5052. Also, experiments are conducted to determine an optimum concentration of usage of the GCF for the aforementioned surfaces. The findings provide strong, clear proof that the GCF is a practical, long-term replacement for mineral oil-based cutting fluids for its superior wetting qualities and advantages for the environment. © 2024 selection and editorial matter Ravi Kant, Hema Gurung and Shashikant Yadav; individual chapters, the contributors.