Abstract
Machinability studies on hard-to-cut material is very important to understand how to achieve better tool life and select optimal cutting parameters. This paper investigates the chip formation, cutting force, thrust force, temperature, and tool wear when machining Ti-6Al-4 V by comparing two different coated inserts. TiN and Al2O3 coated tools were used for this study and their performance was evaluated in the turning process by varying the cutting speed and feed rate at constant depth of cut. The cutting temperature of Al2O3 coated tool at chip-tool interface was found higher than TiN coated tool. However, Al2O3 produced lesser cutting forces as well as sustained tool life at 52.46 m/min and 0.2 mm/rev.
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