Cutting speed and rpm for drilling machine
. define cutting speed
. state the factors for determining the cutting speed
. ddifferentiate between cutting speed and rpm
. determine rpm/spindle speed
. rpm for drill sizes
For a drill to give a satisfactory performance, it must operate at the correct cutting speed and feed. Cutting speed is the speed at which the edge passes over the materials while cutting, and is expressed in metres per minut.cutting speed is also sometimes stated as surface speed or peripheral speed. The section of the recommended cutting speed for drilliing depends on the materials to be drilled, and the tool material. Tool manufacturer's usually provide a table of cutting speeds required for different materials. The recommended cutting speeds for different materials. Based on the cutting speed recommended, the RPM, at which a drill has to be driven, is determined.