A disc of 200 mm outer and 80 mm inner diameter is faced at a feed of 0.1 mm/rev with a depth of cut of 1 mm. The facing operation is undertaken at a constant cutting speed of 90 m/min in a CNC lathe. The main (tangential) cutting force is 200 N. Assuming approach and over-travel of the cutting tool to be zero, the machining time in min is

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Aditi

Aditi

need help, explain answer

Muskaan

Muskaan

please post an explanation

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