Engineering, 13.03.2021 05:00 merunikitty1226
1. A drilling operation is to be performed with a 10 mm diameter twist drill in a steel workpart. The hole is a blind hole at a depth of 60 mm and the point angle is 118. The cutting speed is 30 m/min and the feed is 0.25 mm/rev. Determine (a) the cutting time to complete the drilling operation, and (b) metal removal rate during the operation, after the drill bit reaches full diameter.
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1. A drilling operation is to be performed with a 10 mm diameter twist drill in a steel workpart. Th...
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