1. Figure 21.4 provides suggested cutting speeds and feeds forturn- ing. You are cutting a wrought carbon steel (1012) atnormalized to 100 Bhn and have have selected a high speed steeltool. For a DOC of 150 in., What speed and feed would youselect?
2. For problem 1, suppose you selected a speed of 145 sfpm and afeed of 0.015 in. per revolution. The workpiece is 4 in. indiameter.
a. What is the input rpm? b. What is the MRR? c. What is thecutting time for a 6-in. cut?
Only question 2 please.. if you need more info please let meknow
