Question 1: Discuss the role of bar feeders in CNC turning centers. How do automatic bar feeders optimize the production of parts in high volumes?
Question 2: A CNC turning center is used to machine a steel shaft with a diameter of 50 mm. The cutting speed is 150 m/min, and the feed rate is 0.2 mm/rev. Calculate the time it takes to turn a 200 mm long work piece.