# Lathe Operations Calculator

Calculate Cutting Speed from Dia of job to be turned and Revolution of job

S=[πDN]/100 m/min.

Enter your values:

Dia of job to be turned(D):
in cm.
Revolution of the job/min(N):

Result:

Cutting Speed(S):

Calculate Revolution(rev.) from Cutting Speed and Dia of job to be turned

N=[100S]/[πD] r.p.m.

Enter your values:

Cutting Speed(S):
m/min.
Dia of job to be turned(D):
cm.

Result:

Revolution of the job job/min(N):

Calculate Time for Turning

Time for Turning = (Length of the job to be turned) / (Feed/Rev).× r.p.m. min.

Enter your values:

Length of job:
metre
Feed/rev.:
Revolution of the job/min:

Result:

Time for Turning:

Calculate Time for Boring

Time for Borning = (Length to be bored) / (Feed/Rev).× r.p.m.

Enter your values:

Length to be Bored:
Feed/Rev.:
Revolution of the job/min:

Result:

Required Time for Boring:

Calculate Time for Drilling

Time for Drilling = (Depth of hole to be produced) / (Feed/Rev).× r.p.m.

Enter your values:

Depth of hole:
Feed/Rev.:
Revolution of the job/min:

Result:

Required Time for Drilling:

Calculate Time for Facing

Time required for Cut = (Length to Cut) / (Feed/Rev).× r.p.m.

Enter your values:

Length of Cut:
Feed:
Revolution of the job/min:

where, Length of Cut = 1/2 (Dia. of job)

Result:

Required Time for Cut:

Calculate Time for Knurling

Time for Knurling = (Length of Cut) / (Feed/Rev).× r.p.m.

Enter your values:

Length of Cut:
Feed/Rev.:
Revolution of the job/min:

Result:

Required Time for Knurling:

Calculate Time for Reaming

Time for Reaming = (Depth of Hole) / (Feed/Rev).× r.p.m.

Enter your values:

Depth of Hole:
Feed/Rev.:
Revolution of the job/min:

Result:

Required Time for Reaming:

Calculate Time for Tapping

Time for Tapping = [L+D/2]/[P itch × r.p.m.] min.
Time for Cutting = [3/2(L+D/2)]/[P itch × r.p.m.] min.

Enter your values:

Length of threaded portion:
Dia of tap used:
Pitch:
Revolution of the job/min:

Result:

Required Time for Threading:
Required Time for Cutting:
About lathe A lathe is a machine tool that mainly uses turning tools to turn rotating workpieces. Drills, reamers, reamers, taps, die and knurling tools can also be used on lathes for corresponding processing.
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