q.2 a 150 mm long, 75 mm diameter titanium-alloy rod is being reduced in diameter to 65 mm by turning on a lathe in one pass. the spindle rotates at 400 rpm and the tool is traveling at an axial velocity of 200 mm/min calculate the cutting speed, material removal rate, time of cut, power required, and the cutting force. unit energy required for material removal for titanium is 4.1 ws/mm