Machining Time for Drilling Operation Calculator

✖Length of cut (LOC) refers to the depth of the hole being drilled. This is the total distance the drill bit travels into the workpiece to create the hole. It is often refers as 'depth of hole'.ⓘ Length of Cut [l_w]			+10% -10%
✖Feed Rate refers to the speed at which the cutting tool advances against the workpiece. It essentially controls how much material is removed with each pass of the tool.ⓘ Feed Rate [f]			+10% -10%
✖Rotational Frequency of Drill-bit is defined as the number of rotations per unit time or reciprocal of the time period of one complete rotation of drill-bit.ⓘ Rotational Frequency of Drill-bit [n]			+10% -10%

✖Machining time refers to the total time it takes to create a hole using a drilling machine. It is the duration for which the drill bit actively engages with the workpiece.ⓘ Machining Time for Drilling Operation [t_m]

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Formula

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Machining Time for Drilling Operation

Formula

`"t"_{"m"} = "l"_{"w"}/("f"*"n")`

Example

`"26.17761s"="355mm"/("0.70mm/rev"*"185rev/min")`

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Machining Time for Drilling Operation Solution

STEP 0: Pre-Calculation Summary

Formula Used

Machining Time = Length of Cut/(Feed Rate*Rotational Frequency of Drill-bit)
t_m = l_w/(f*n)
This formula uses 4 Variables

Variables Used

Machining Time - (Measured in Second) - Machining time refers to the total time it takes to create a hole using a drilling machine. It is the duration for which the drill bit actively engages with the workpiece.
Length of Cut - (Measured in Meter) - Length of cut (LOC) refers to the depth of the hole being drilled. This is the total distance the drill bit travels into the workpiece to create the hole. It is often refers as 'depth of hole'.
Feed Rate - (Measured in Meter Per Revolution) - Feed Rate refers to the speed at which the cutting tool advances against the workpiece. It essentially controls how much material is removed with each pass of the tool.
Rotational Frequency of Drill-bit - (Measured in Radian per Second) - Rotational Frequency of Drill-bit is defined as the number of rotations per unit time or reciprocal of the time period of one complete rotation of drill-bit.

STEP 1: Convert Input(s) to Base Unit

Length of Cut: 355 Millimeter --> 0.355 Meter (Check conversion here)
Feed Rate: 0.7 Millimeter Per Revolution --> 0.0007 Meter Per Revolution (Check conversion here)
Rotational Frequency of Drill-bit: 185 Revolution per Minute --> 19.3731546961505 Radian per Second (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

t_m = l_w/(f*n) --> 0.355/(0.0007*19.3731546961505)

Evaluating ... ...

t_m = 26.1776084017761

STEP 3: Convert Result to Output's Unit

26.1776084017761 Second --> No Conversion Required

FINAL ANSWER

26.1776084017761 ≈ 26.17761 Second <-- Machining Time

(Calculation completed in 00.004 seconds)

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Credits

Created by Kumar Siddhant

Indian Institute of Information Technology, Design and Manufacturing (IIITDM), Jabalpur

Kumar Siddhant has created this Calculator and 400+ more calculators!

Verified by Kethavath Srinath

Osmania University (OU), Hyderabad

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< 7 Drilling Operation Calculators

Material Removal Rate during Drilling Operation using Feed

Go Material Removal Rate in Drilling = (pi*Machined Surface Diameter^2*Feed Rate in Drilling Operation*Rotational Frequency of Tool)/4

Material Removal Rate during Drilling Operation when Enlarging Existing Hole

Go Material Removal Rate = (pi*(Machined Surface Diameter^2-Work Surface Diameter^2)*Feed Speed)/4

Diameter of Drill Bit given Length of Approach

Go Diameter of Drill Bit = 2*Approach Distance/tan(pi/2-Drill Point Angle/2)

Material Removal Rate during Drilling Operation

Go Material Removal Rate in Drilling = pi/4*Machined Surface Diameter^2*Feed Speed

Machining Time for Drilling Operation

Go Machining Time = Length of Cut/(Feed Rate*Rotational Frequency of Drill-bit)

Drill Point Angle for given Length of Approach

Go Drill Point Angle = 2*atan(0.5*Diameter of Drill Bit/Approach Distance)

Length of Approach for Drilling Operation

Go Approach Distance = 0.5*Diameter of Drill Bit*cot(Drill Point Angle/2)

Machining Time for Drilling Operation Formula

Machining Time = Length of Cut/(Feed Rate*Rotational Frequency of Drill-bit)
t_m = l_w/(f*n)

What is drilling operation?

Drilling is a fundamental machining process that involves creating cylindrical holes in solid materials. It's a widely used technique across various industries, from metalworking and carpentry to construction and electronics. In drilling 'Rotational Motion(Rotational vector)' and 'Linear motion(Linear Vector)' works together to perform machining. Drilling is a versatile and essential operation in machining. Understanding its core principles and considerations allows you to perform drilling tasks effectively and safely.

How to Calculate Machining Time for Drilling Operation?

Machining Time for Drilling Operation calculator uses Machining Time = Length of Cut/(Feed Rate*Rotational Frequency of Drill-bit) to calculate the Machining Time, Machining Time for Drilling Operation calculates the total time it takes to create a hole using a drill bit. This parameter depends on the hole size that is needed to produce. It's a crucial factor for determining production efficiency and cost. Machining Time is denoted by t_m symbol.

How to calculate Machining Time for Drilling Operation using this online calculator? To use this online calculator for Machining Time for Drilling Operation, enter Length of Cut (l_w), Feed Rate (f) & Rotational Frequency of Drill-bit (n) and hit the calculate button. Here is how the Machining Time for Drilling Operation calculation can be explained with given input values -> 26.17761 = 0.355/(0.0007*19.3731546961505).

FAQ

What is Machining Time for Drilling Operation?

Machining Time for Drilling Operation calculates the total time it takes to create a hole using a drill bit. This parameter depends on the hole size that is needed to produce. It's a crucial factor for determining production efficiency and cost and is represented as t_m = l_w/(f*n) or Machining Time = Length of Cut/(Feed Rate*Rotational Frequency of Drill-bit). Length of cut (LOC) refers to the depth of the hole being drilled. This is the total distance the drill bit travels into the workpiece to create the hole. It is often refers as 'depth of hole', Feed Rate refers to the speed at which the cutting tool advances against the workpiece. It essentially controls how much material is removed with each pass of the tool & Rotational Frequency of Drill-bit is defined as the number of rotations per unit time or reciprocal of the time period of one complete rotation of drill-bit.

How to calculate Machining Time for Drilling Operation?

Machining Time for Drilling Operation calculates the total time it takes to create a hole using a drill bit. This parameter depends on the hole size that is needed to produce. It's a crucial factor for determining production efficiency and cost is calculated using Machining Time = Length of Cut/(Feed Rate*Rotational Frequency of Drill-bit). To calculate Machining Time for Drilling Operation, you need Length of Cut (l_w), Feed Rate (f) & Rotational Frequency of Drill-bit (n). With our tool, you need to enter the respective value for Length of Cut, Feed Rate & Rotational Frequency of Drill-bit and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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