Inconel 718 is the most widely used in the aerospace industries, especially for gas turbine hot section components. Titanium alloys, on the other hand, have very high strength-to-weight ratio making them very suitable for aircraft engines and airframe manufacture. They account for 30% of the total engine mass in commercial and 40% in military projects. However, both these strategic materials have poor machinability, as a result of which they have dominated the major research interests in metal cutting industries in the past decades. One of the techniques to improve machinability is the use an...