Calculate tool life from speed, and also velocity from tool life in machining
Question: A carbide tool while machining a mild steel workpiece was found to have a life of 1 hr and 40 min when cutting at 50 m/min. Find the tool life if the tool is to operate at a speed 30% higher than previous one. Also, calculate the cutting speed if the tool is required to have a life of 2 hr and 45 min. Assume n = 0.28. [BITS