Specific-force power screen

Turning cutting power

Inputs

Depth of cutapDeclared radial turning depth of cut for the stated pass.

Feed per revolutionfmm/revDeclared turning feed per revolution for the stated pass.

Cutting speedvcDeclared cutting speed for the stated pass.

Declared specific cutting forceKcUser-entered specific cutting force; no material or chip-thickness model is selected.

Declared machine efficiencyη%User-entered machine coefficient used only in the direct power screen.

Ideal cutting power

3.72

Declared-efficiency machine input

4.65

Pc = ap f vc Kc /(60 × 10³); Pmachine = Pc/η

A first-pass number, not a code check, certification, or approval. Read the method and its limits below. What this is and is not.

Calculation snapshot

Formula version 2.0.0

Depth of cut	3
Feed per revolution	0.2
Cutting speed	120
Declared specific cutting force	3100
Declared machine efficiency	80

Ideal cutting power	3.72 kW
Declared-efficiency machine input	4.65 kW

Pc = ap f vc Kc /(60 × 10³) · Pmachine = Pc/η

Mitsubishi Materials turning cutting power: https://www.mmc-carbide.com/us/technical_information/formula/tec_turning_cutting_power_formula

This printout is a record of displayed inputs and deterministic formula output. It is not an approval, certification, or engineering conclusion.

Method

Calculate turning cutting power from depth, feed, speed, specific cutting force, and machine efficiency.

Pc = ap f vc Kc /(60 × 10³); Pmachine = Pc/η

When

Don’t

Direct turning power screen only; parameter/tool selection, chip-thickness effects, chatter, thermal limits, wear, machine limits, safety, and production approval are excluded.