# Cutting force calculations for drilling machine

Hi friends.... Pls help me out to find the cutting force calculations for a drilling machine and the calculations for design of lead screw......

## Replies

• PraveenKumar Purushothaman
Calculation of Cutting Force, Torque and Power

The power must be available at the rotational speed used (see the power curve of the machine as a function of rotational speed), while taking into account the following remark:

One must remember that the spindle power of the machine must be greater than the cutting power because, in approximate terms, we have:

Ptotal = Pc + Pv (no-load power at the rotational speed used)

EN AW 2017 aluminium alloy, monobloc carbide drill:

d = 6 mm, vc = 200, f = 0.3. This data gives: (kc = 1050, see previous table)

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