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High-speed machining (HSM) is being considered to produce the aluminum part in Problem 22.15. All cut-ting conditions remain the same except for the cutting speed and the type of insert used in the cutter. Assume that the cutting speed. Determine
(a) the new time to machine the part and
(b) the new metal removal rate.
(c) Is this part a good candidate for high-speed machining? Explain.
Problem 22.15
A face milling operation is used to machine 6.0 mm in a single pass from the top surface of a rectangular piece of aluminum 300 mm long by 125 mm wide. The cutter has four teeth (cemented carbide inserts) and is 150 mm in diameter. The cutting speed is 2.8 m/s, and the chip load is 0.27 mm/tooth. Determine
(a) time to make one pass across the surface and
(b) the maximum metal removal rate during cutting.
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