A face milling operation is used to remove 0.32 in from the end of a cylinder that has a diameter of 3.90 in. The cutter has a 4 in diameter with 4 teeth. The cutting speed is 375 ft/min and the chip load is 0.006 in/tooth. Determine
(a) the time to machine,
(b) the average metal removal rate (considering the entire machining time), and
(c) the maximum metal removal rate.