Engineering, 22.07.2020 21:01 perezesmeralda78

A drilling operation is to be performed with a 12.7 mm diameter drill on cast iron. The hole depth is 60 mm and the drill point angle is 118∘. The cutting speed is 25 m/min and the feed is 0.30 mm/rev. Calculate:. a) The cutting time (min) to complete the drilling operation
b) Material removal rate (mm3/min) during the operation, after the drill bit reaches full diameter.

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A drilling operation is to be performed with a 12.7 mm diameter drill on cast iron. The hole depth i...

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