Upper diameter of hole Calculator

✖Depth of machined surface is the how deep a surface is machined from the un-machined surface.ⓘ Depth of Machined Surface [H_sd]			+10% -10%
✖Empirical constant is defined as the constant used to calculate the Taper produced during EDM due to side sparks.ⓘ Empirical Constant [K_T]			+10% -10%
✖The smaller diameter is the smaller of all diameters of a given object.ⓘ Smaller Diameter [d]			+10% -10%

✖Larger diameter is the bigger diameter of hole or other things.ⓘ Upper diameter of hole [D_sd]

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Formula

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Upper diameter of hole

Formula

`"D"_{"sd"} = 2*"H"_{"sd"}*"K"_{"T"}*"d"^2+"d"`

Example

`"21.98669m"=2*"52m"*"0.1388"*("1.2m")^2+"1.2m"`

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Upper diameter of hole Solution

STEP 0: Pre-Calculation Summary

Formula Used

Larger Diameter = 2*Depth of Machined Surface*Empirical Constant*Smaller Diameter^2+Smaller Diameter
D_sd = 2*H_sd*K_T*d^2+d
This formula uses 4 Variables

Variables Used

Larger Diameter - (Measured in Meter) - Larger diameter is the bigger diameter of hole or other things.
Depth of Machined Surface - (Measured in Meter) - Depth of machined surface is the how deep a surface is machined from the un-machined surface.
Empirical Constant - Empirical constant is defined as the constant used to calculate the Taper produced during EDM due to side sparks.
Smaller Diameter - (Measured in Meter) - The smaller diameter is the smaller of all diameters of a given object.

STEP 1: Convert Input(s) to Base Unit

Depth of Machined Surface: 52 Meter --> 52 Meter No Conversion Required
Empirical Constant: 0.1388 --> No Conversion Required
Smaller Diameter: 1.2 Meter --> 1.2 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

D_sd = 2*H_sd*K_T*d^2+d --> 2*52*0.1388*1.2^2+1.2

Evaluating ... ...

D_sd = 21.986688

STEP 3: Convert Result to Output's Unit

21.986688 Meter --> No Conversion Required

FINAL ANSWER

21.986688 ≈ 21.98669 Meter <-- Larger Diameter

(Calculation completed in 00.004 seconds)

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Home » Engineering » Production Engineering » Unconventional machining processes » Electro Discharge Machining (EDM) » Possible surface defects in EDM » Taper Formation » Upper diameter of hole

Credits

Created by Rajat Vishwakarma

University Institute of Technology RGPV (UIT - RGPV), Bhopal

Rajat Vishwakarma has created this Calculator and 400+ more calculators!

Verified by Sai Venkata Phanindra Chary Arendra

Vallurupalli Nageswara Rao Vignana Jyothi Institute of Engineering and Technology (VNRVJIET), Hyderabad

Sai Venkata Phanindra Chary Arendra has verified this Calculator and 300+ more calculators!

< 9 Taper Formation Calculators

Volume of crater made by electric spark

Go Volume of Crater = (pi/12)*Depth of Machined Surface*((Smaller Diameter^2)+(Larger Diameter^2)+(Larger Diameter*Smaller Diameter))

Empirical constant for taper

Go Empirical Constant = (Larger Diameter-Smaller Diameter)/(2*Depth of Machined Surface*Smaller Diameter^2)

Depth of machined surface

Go Depth of Machined Surface = (Larger Diameter-Smaller Diameter)/(2*Empirical Constant*Smaller Diameter^2)

Upper diameter of hole

Go Larger Diameter = 2*Depth of Machined Surface*Empirical Constant*Smaller Diameter^2+Smaller Diameter

Depth of machined surface given taper

Go Depth of Machined Surface = (Larger Diameter-Smaller Diameter)/(2*Taper Produced in EDM)

Smaller diameter of crater given Taper

Go Smaller Diameter = Larger Diameter-2*Depth of Machined Surface*Taper Produced in EDM

Largest size of hole given taper

Go Larger Diameter = 2*Depth of Machined Surface*Taper Produced in EDM+Smaller Diameter

Smallest diameter of hole given empirical constant

Go Smaller Diameter = sqrt(Taper Produced in EDM/Empirical Constant)

Taper produced due to side sparks

Go Taper Produced in EDM = Empirical Constant*Smaller Diameter^2

Upper diameter of hole Formula

Larger Diameter = 2*Depth of Machined Surface*Empirical Constant*Smaller Diameter^2+Smaller Diameter
D_sd = 2*H_sd*K_T*d^2+d

What factors affects surface finish during EDM?

The amount of material removed and the surface finish produced is dependent upon the current in the spark. The material removed by the spark can be assumed to be a crater. The amount removed therefore will depend upon the crater depth, which is directly proportional to the current. Thus as the material removed increases and at the same time, the surface finish also decreases. However, decreasing the current in the spark, but increasing its frequency will improve the surface finish in view of the small crater size, but at the same time, the material removal rate can be maintained by increasing the frequency.

How to Calculate Upper diameter of hole?

Upper diameter of hole calculator uses Larger Diameter = 2*Depth of Machined Surface*Empirical Constant*Smaller Diameter^2+Smaller Diameter to calculate the Larger Diameter, The Upper diameter of hole formula is defined as the width of hole on the upper surface of workpiece during EDM. Larger Diameter is denoted by D_sd symbol.

How to calculate Upper diameter of hole using this online calculator? To use this online calculator for Upper diameter of hole, enter Depth of Machined Surface (H_sd), Empirical Constant (K_T) & Smaller Diameter (d) and hit the calculate button. Here is how the Upper diameter of hole calculation can be explained with given input values -> 188.4 = 2*52*0.1388*1.2^2+1.2.

FAQ

What is Upper diameter of hole?

The Upper diameter of hole formula is defined as the width of hole on the upper surface of workpiece during EDM and is represented as D_sd = 2*H_sd*K_T*d^2+d or Larger Diameter = 2*Depth of Machined Surface*Empirical Constant*Smaller Diameter^2+Smaller Diameter. Depth of machined surface is the how deep a surface is machined from the un-machined surface, Empirical constant is defined as the constant used to calculate the Taper produced during EDM due to side sparks & The smaller diameter is the smaller of all diameters of a given object.

How to calculate Upper diameter of hole?

The Upper diameter of hole formula is defined as the width of hole on the upper surface of workpiece during EDM is calculated using Larger Diameter = 2*Depth of Machined Surface*Empirical Constant*Smaller Diameter^2+Smaller Diameter. To calculate Upper diameter of hole, you need Depth of Machined Surface (H_sd), Empirical Constant (K_T) & Smaller Diameter (d). With our tool, you need to enter the respective value for Depth of Machined Surface, Empirical Constant & Smaller Diameter and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Larger Diameter?

In this formula, Larger Diameter uses Depth of Machined Surface, Empirical Constant & Smaller Diameter. We can use 1 other way(s) to calculate the same, which is/are as follows -

Larger Diameter = 2*Depth of Machined Surface*Taper Produced in EDM+Smaller Diameter

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