Investigation and modeling of the tangential cutting force of the Titanium alloy Ti-6Al-4V in the orthogonal turning process

In this paper, an experimental study of localized shearing and tangential cutting force is carried out for orthogonal turning in a range of cutting speeds from 50 to 250 m/min and different feed rate from 0.1 to 0.2 mm/rev. The influence of cutting speed and feed rate and fixed depth of cut on the tangential cutting force is examined. Secondly, the model for the Cutting force, as a function of cutting parameters, is obtained using the response surface methodology (RSM). Finally, the adequacy of the developed mathematical model is proved by ANOVA. The results indicate that the feed rate and the cutting speed are the dominant factors affecting the tangential turning Force, which is minimized when the feed rate and depth of cut are set to the lowest level, while the cutting speed is set to the highest level. This reveals that the prediction system established in this study produces satisfactory results, which are improved performance over other models in the literature. The enhanced method can be readily applied to the titanium alloys metal cutting processes with greater confidence.