At present it takes 30 s to turn a workpiece and the tool must be reground after 80 workpieces. The Taylor tool-life relation for the tool-workpiece combination is: Economics of Metal-Cutting Operations U10.25=7 where v is the cutting speed (in m/s) and is the tool life (in seconds). a. If the loading and unloading of a workpiece takes 20 s (including the time to return the tool to the beginning of the cut and if it takes 200 s to change a worn tool, what is the present average production time per component? b. If the cutting speed is tripled, what will the new production time be? c. If the cutting speed for maximum production rate were used, what would the tool life be (in seconds)?