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Machining Time for Drilling Operation Formula

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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. Check FAQs

t m = \frac{l w}{f \cdot n}

t_m - Machining Time?l_w - Length of Cut?f - Feed Rate?n - Rotational Frequency of Drill-bit?

Machining Time for Drilling Operation Example

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Here is how the Machining Time for Drilling Operation equation looks like with Values.

Here is how the Machining Time for Drilling Operation equation looks like with Units.

Here is how the Machining Time for Drilling Operation equation looks like.

26.1776 = \frac{355}{0.7 \cdot 185}

26.1776s = \frac{355mm}{0.7mm/rev \cdot 185rev/min}

26.1776 = \frac{355}{0.7 \cdot 185}

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Machining Time for Drilling Operation Solution

Follow our step by step solution on how to calculate Machining Time for Drilling Operation?

FIRST Step Consider the formula

t m = \frac{l w}{f \cdot n}

Next Step Substitute values of Variables

∴

t m = \frac{355mm}{0.7mm/rev \cdot 185rev/min}

Next Step Convert Units

∴

t m = \frac{0.355m}{0.0007m/rev \cdot 19.3732rad/s}

Next Step Prepare to Evaluate

∴

t m = \frac{0.355}{0.0007 \cdot 19.3732}

Next Step Evaluate

∴

t m = 26.1776084017761s

LAST Step Rounding Answer

∴

t m = 26.1776s

Machining Time for Drilling Operation Formula Elements

Variables

Machining Time

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.

Symbol: t_m

Measurement: TimeUnit: s

Note: Value should be greater than 0.

Formulas to find Machining Time

Length of Cut

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'.

Symbol: l_w

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Length of Cut

Feed Rate

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.

Symbol: f

Measurement: FeedUnit: mm/rev

Note: Value should be greater than 0.

Formulas to find Feed Rate

Rotational Frequency of Drill-bit

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.

Symbol: n

Measurement: Angular VelocityUnit: rev/min

Note: Value should be greater than 0.

Formulas to find Rotational Frequency of Drill-bit

Other formulas in Drilling Operation category

Go Length of Approach for Drilling Operation

A = 0.5 \cdot D \cdot \cot (\frac{θ}{2})

Go Drill Point Angle for given Length of Approach

θ = 2 \cdot a \tan (0.5 \cdot \frac{D}{A})

Go Diameter of Drill Bit given Length of Approach

D = 2 \cdot \frac{A}{\tan (\frac{π}{2} - \frac{θ}{2})}

Go Material Removal Rate during Drilling Operation

Z d = \frac{π}{4} \cdot {d m}^{2} \cdot v f

How to Evaluate Machining Time for Drilling Operation?

Machining Time for Drilling Operation evaluator uses Machining Time = Length of Cut/(Feed Rate*Rotational Frequency of Drill-bit) to evaluate 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 evaluate Machining Time for Drilling Operation using this online evaluator? To use this online evaluator 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.

FAQs on Machining Time for Drilling Operation

What is the formula to find Machining Time for Drilling Operation?

The formula of Machining Time for Drilling Operation is expressed as Machining Time = Length of Cut/(Feed Rate*Rotational Frequency of Drill-bit). Here is an example- 26.17761 = 0.355/(0.0007*19.3731546961505).

How to calculate Machining Time for Drilling Operation?

With Length of Cut (l_w), Feed Rate (f) & Rotational Frequency of Drill-bit (n) we can find Machining Time for Drilling Operation using the formula - Machining Time = Length of Cut/(Feed Rate*Rotational Frequency of Drill-bit).

Can the Machining Time for Drilling Operation be negative?

No, the Machining Time for Drilling Operation, measured in Time cannot be negative.

Which unit is used to measure Machining Time for Drilling Operation?

Machining Time for Drilling Operation is usually measured using the Second[s] for Time. Millisecond[s], Microsecond[s], Nanosecond[s] are the few other units in which Machining Time for Drilling Operation can be measured.

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Machining Time for Drilling Operation Formula

Machining Time for Drilling Operation Example

Machining Time for Drilling Operation Solution

Machining Time for Drilling Operation Formula Elements

Other formulas in Drilling Operation category

How to Evaluate Machining Time for Drilling Operation?

FAQs on Machining Time for Drilling Operation

Variable Name