(a) How are the cutting fluids classified ? Explain every class with a couple of lines.
(b) A carbide cutting tool has tool life exponent n = 0.27. It gives a tool life of 60 min while machining a mild steel workpiece at a cutting speed of 120 m/min. calculate the tool life if its is to be cut at 20% higher cutting speed ?
(c) Write a couple of lines on :
(i) Tool life
(ii) Machineability
(iii) Machinability Index
(iv) Coated tools