An Experimental Investigation on the Role of Coolant and Lubricant Fluids in the Maximum Electrical Current Based upon the Rock Physical and Mechanical Properties

The increase of productivity and reduction of expenses are the most important incentive factors for investors in the dimension stone’s industry. The consumed electrical current is one of the most influential factors in the productivity and expenses. Therefore, study of the factors influencing the reduction of the maximum consumed electrical current and evaluation of the rock cutting process have a significant role in the planning, increase of productivity and reduction of expenses. In the present study, three granite stone samples were selected as hard rocks and prepared from Iranian quarries, and the laboratory experiments were done to measure the physical and mechanical properties of the stones. In addition, three coolant and lubricant fluids including water and two types of soap water with ratios of 1 to 40 and 1 to 20 were selected for determining their effects on the maximum electrical current consumed by the machine. Cutting tests were done based on three different cutting depths and totally 27 tests were done for three fluids and the maximum electrical current consumed in each test was measured and tested. In this study, the investigations and analyses of the laboratory results were done using the statistical analysis. The results obtained from the research showed that soap water with ratios of 1 to 40 had the maximum effect and productivity on the process of reducing the consumed electrical current compared to other fluids under study. Also, the range of consumed electrical current’s change was reduced with the reduction of physical and mechanical properties.