An Experimental Investigation to Augment the Machinability Characteristics During Dry Turning of Ti-6Al-4V Alloy

In general, Ti-6Al-4V alloys have been applied in recent metal cutting processes as an advantage of their immense strength concerning weight ratio at more corrosion resistance and temperature characteristics. It induces wide application in the automotive, nuclear, aerospace, biomedical, chemical, and naval industries. This recent research aims to establish the correlation between main input variables (cutting speed, axial feed rate, and depth of cut) and output characteristics (surface roughness, tool flank wear, and amplitude of vibration signal) in dry (no coolant) machining of Ti-6Al-4V alloy. The trials were conducted at variations of cutting speeds (75, 125, and 175 m/min), depth of cut (0.2, 0.4, 0.6 mm), and axial feed rate (0.1, 0.15, 0.2 mm/rev). The tool wear mechanisms were analyzed through scanning electron microscope. Also, the integrated multiple-output factors optimization method using a combined quality loss concept in the weighted principal component analysis coupled with the Taguchi analysis has been executed. With this, the optimal parameter setting has been found to be depth of cut (0.4 mm)–feed rate (0.1 mm/rev)–cutting speed (75 m/min). In this analysis, the optimized process input process variables determined will be definitely helpful to augment the performance characteristics of Ti-6Al-4V alloy in future research.