The effect of cutting force and tool wear in milling INCONEL 718

Inconel 718 is known for being a difficult to cut material, this is due to its high strength at high temperatures, low thermal conductivity and high work hardening. These excellent properties makes Inconel 718 suitable for high temperature applications. This paper presents a study on the effects of the radial depth of cut on the cutting force variations and tool wear propagation in the first cut using TiAlN coated inserts as the cutting tool. The machining operation conducted was side milling at cutting speeds of 80m/min, 100m/min and 120 m/min. The results obtained shows that the cutting forces and tool wear increase with increasing radial depth of cut.