Comparative performance analysis of Tung and Jatropha emulsions for development as cutting fluids

This work was based on a comparative analysis of the action of Tung and Jatropha Curcas emulsions as cutting fluids for a CGI gray cast iron, where machining parameters, tool wear and fluid efficiency were analyzed. The results that followed the Reichert Test, milling with TiN coated carbide inserts, weight loss and pins temperatures measurements for each fluid.Given the operating conditions, the main wear mechanism presented by CGI gray cast iron machining, using Tung and Jatropha emulsions as cutting fluid, was flank wear, with adherence to the flank surface and the tool outlet. Therefore, substrate peeling was observed followed by chipping and breaking of the cutting edges of the tool with higher incidence in machining with emulsified Tung fluid.The tool wear zone occurred mainly near the radius of the tool nose on the flank side, with plastic deformation independent of the cutting speed.