Basic Drilling


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Considering that the workpiece rotates in turning and the drill rotates in drilling, feed per revolution and cutting speed for drilling can be found in a similar way to turning. When the drill moves 100mm in a minute at 1,000 RPM, feed per minute is vf=100mm/min.

Distance that tool moves in a minute

Diameter 10 mm

fr=0,1 mm/rev

Feed per revolution

fr=100/1,000=0,1 mm/rev

Cutting speed