Full factorial methodology was adopted. Trial experiments were also conducted to find out best suited cutting parameters for evaluation of machining variables of different materials. The values of the cutting parameters were selected in line with the previous research by different authors, and capabilities of the machine as well as the cutting tool were also considered. Table 3 indicates the factors and their level. Repeatability was ensured by repeating most tests three times, with the variation of measurements generally within 5% range. The average value of the cutting force measurements was taken as the experimental data. In total, sixty-four numbers of experiments were conducted.