EXPERIMENTAL-ANALYTICAL DETERMINATION OF CUTTING CONDITIONS BY MEANS OF MINIMAL FRICTION FORCE ON RAKE PLANE OF THE CUTTING TOOL

In this paper, the influence of four factors on the forces during cutting, especially on the friction force was investigated. These factors are water quantity in MQL, speed, depth, and feed rate. In this study, the optimization of those factors to find their optimal combination for obtaining minimal intensity friction force has been looked into. The null hypothesis is that by using the MQL technique, the friction force can be significantly reduced. The experiment was planned using Taguchis L9 design of experiments. The study included performing the machining of the workpiece through different combinations of levels for the spindle speed, feed rate, amount of water, and depth of cut as the main parameters.