Abstract
This work reflects the effects of tool tip temperature on flank wear of ceramic cutting tools during the turning of nickel alloy 718 (HRC 45). Two types of ceramic cutting inserts were used Al oxide (620) and mixed oxide (6050), during the turning operation under dry environmental conditions at various cutting speeds of 145 m/min, 230 m/min and 360 m/min respectively. The Al oxide inserts showed better results at cutting speed of 145 m/min and 230 m/min than mixed oxide. The worn out edges of inserts and micro structural properties were obtained by using SEM and tool makers microscope. The results were obtained after analyzing each test. The wear resistance of cutting inserts were affected by the tool tip temperature at the cutting zone.
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