Investigating the Role of Coolant and Lubricant Fluids on the Performance of Cutting Disks (Case Study: Hard Rocks)

The correct and proper selection of coolant and lubricant fluids in the dimension hard rocks' cutting process is one of the most important factors in the improvement of the cutting process, and in the increase of economic efficiency and quality of stone production. Therefore, this present study aims to study the role of coolant and lubricant fluids in the cutting performance of dimension hard rocks. In this study; to granite stone samples were collected from Iranian quarries and their physical and mechanical properties including their uniaxial compressive strength, Mohs hardness, Schimazek's F-abrasiveness factors and Young modulus were measured and determined. According to the three types of coolant and lubricant fluids, including the two types of soap water with ratios of r to 40 and r to 20 and one type of lubricant and coolant powder, and using two different operational parameters such as feed rate (Fr) and depth of cut (Dc), 160 laboratory tests fin each of these fluids were studied and measured in order to determine the maximum electrical current consumed by the machine. The obtained results were statistically and intelligently evaluated and analyzed through the radial basis function (RBF). Based upon the results obtained from both the analytical methods, the lubricant and coolant powder with ratios of i to 20 had the maximum and minimum effects on the reduction of the maximum consumed electrical current in the hard rocks' cutting process.