Inconel 718 is an aerospace material that is difficult to cut due to its high generated cutting temperature. This study is using dry and liquid carbon dioxide as a coolant to cut inconel 718. The cutting tool used is coated tungsten carbide. Parameter used in this experiment are Vc=70 and 110 m/min, f=0.075 mm/rev and ap=0.1 mm. Results show that the cryogenic machining reduces the wear progression of the nose wear. The main wear criteria is catastrophic fracture at highest speed. Cryogenic machining reduced the fracture and chip welding on the rake face of the tool. 

Asiatrib-2018, pp. 261-262