Tool life tests on a lathe have resulted in the following data: (1) at a cutting

Question

Tool life tests on a lathe have resulted in the following data: (1) at a cutting speed of 375 ft/ min, the tool life was 5.5 min; (2) at a cutting speed of 275 ft/min, the tool life was 53 min. 1. Determine the parameter 'n' in Taylors Tool Life Equation. Answer in x.xxx format. 2. Determine the parameter C in Taylors Tool life Equation. Answer to the nearest unit. 3. If the cutting velocity is set at 300 ft/min, determine the tool life. Answer to the nearest unit. 4. Determine the cutting velocity for a tool life of 10 minutes. Answer to the nearest unit

Explanation / Answer

ans1 ) n=.1378 ans2 ) C=474.3 ans3) if Vc=300 then Tool life = 27.77 ans4) if T=10 Vc= 345.345 ft/min

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