Abstract
In this study, AISI D6 cold work tool steel was machined on lathe by using the CBN tools. AISI D6 work pieces hardness before heat treatment was 22 HRc. Heat treatments were implemented to the work piece at 860-880°C for 40 minutes and it was cooled in oil. In addition the work piece was applied tempering procedure for three times at intervals of 3 hours. The hardness of the work piece after heat treatment was 62 HRc. Experiments were conducted under different depth of cuts, cutting speeds and feed rates by using factorial experimental design on a lathe. The cutting speed of 50, 100 and 150, feed rate of 0.1, 0.15 and 0.2 mm/rev, depth of cut of 0.2, 0.4 and 0.6 125 mm were chosen as the experimental conditions. According to the obtained experimental, it was seen that when the cutting speed, feed rate and depth of cut increases and tool life decreases fast.
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