Calculation

Machining Time: Turning

Created on · machining-time-turning

Estimates longitudinal, facing, grooving, and thread-cutting time from the effective cutting path.

Operation

Initial diameter

Final diameter

Machining length

Approach length

Radial depth of cut

Cutting speed

Feed

Spindle-speed limit

Thread lead

Threading passes

How to use the result

The calculation describes the specified model. Check the tool, workholding, and machine limits before use.

longitudinal turning: t = Σ L / (f · n_i)facing above speed limit: t = π(R²−r²) / (1000 · vc · f)

Sources: https://www.sandvik.coromant.com/en-gb/knowledge/machining-formulas-definitions/milling-formulas-definitions