Blank Size when there is Corner Radius on Punch Solution

STEP 0: Pre-Calculation Summary
Formula Used
Blank Diameter = sqrt(Outer Shell Diameter^2+4*Outer Shell Diameter*Shell Height-0.5*Corner Radius on Punch)
dblank = sqrt(do^2+4*do*hshell-0.5*rcorner)
This formula uses 1 Functions, 4 Variables
Functions Used
sqrt - A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number., sqrt(Number)
Variables Used
Blank Diameter - (Measured in Meter) - Blank Diameter is the diameter of the blank used.
Outer Shell Diameter - (Measured in Meter) - Outer Shell Diameter refer to the measurement across the widest part of any cylindrical object.
Shell Height - (Measured in Meter) - Shell Height is the longitudinal length measured along its axis.
Corner Radius on Punch - (Measured in Meter) - Corner radius on punch is that radius which is provided on the outer edge.
STEP 1: Convert Input(s) to Base Unit
Outer Shell Diameter: 79.9912 Millimeter --> 0.0799912 Meter (Check conversion here)
Shell Height: 2.16 Millimeter --> 0.00216 Meter (Check conversion here)
Corner Radius on Punch: 0.003001 Millimeter --> 3.001E-06 Meter (Check conversion here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
dblank = sqrt(do^2+4*do*hshell-0.5*rcorner) --> sqrt(0.0799912^2+4*0.0799912*0.00216-0.5*3.001E-06)
Evaluating ... ...
dblank = 0.0841915408187782
STEP 3: Convert Result to Output's Unit
0.0841915408187782 Meter -->84.1915408187782 Millimeter (Check conversion here)
FINAL ANSWER
84.1915408187782 84.19154 Millimeter <-- Blank Diameter
(Calculation completed in 00.020 seconds)

Credits

Created by Rajat Vishwakarma
University Institute of Technology RGPV (UIT - RGPV), Bhopal
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Osmania University (OU), Hyderabad
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8 Punch Operation Calculators

Punching Force for Holes Smaller than Sheet Thickness
Go Punching Force or Load = (Punch or Ram Diameter*Blank or Sheet Thickness*Tensile Strength)/(Punch or Ram Diameter/Blank or Sheet Thickness)^(1/3)
Maximum Shear Force given Shear Applied to Punch or Die
Go Maximum Shear Force = Perimeter of Cut*Stock Thickness*(Stock Thickness*Punch Penetration as Fraction)/Shear on the Punch
Shear on Punch or Die
Go Shear on the Punch = Perimeter of Cut*Stock Thickness*(Stock Thickness*Punch Penetration as Fraction)/Maximum Shear Force
Stock Thickness when Shear used on Punch
Go Stock Thickness = sqrt((Maximum Shear Force*Shear on the Punch)/(Perimeter of Cut*Punch Penetration as Fraction))
Blank Size when there is Corner Radius on Punch
Go Blank Diameter = sqrt(Outer Shell Diameter^2+4*Outer Shell Diameter*Shell Height-0.5*Corner Radius on Punch)
Perimeter of Cut when Shear is Applied
Go Perimeter of Cut = (Maximum Shear Force*Shear on the Punch)/(Punch Penetration as Fraction*Stock Thickness^2)
Penetration of Punch as Fraction
Go Punch Penetration as Fraction = (Maximum Shear Force*Shear on the Punch)/(Perimeter of Cut*Stock Thickness^2)
Punch Load
Go Punch Load = Perimeter of Cut*Bar Thickness*Strength Coefficient

Blank Size when there is Corner Radius on Punch Formula

Blank Diameter = sqrt(Outer Shell Diameter^2+4*Outer Shell Diameter*Shell Height-0.5*Corner Radius on Punch)
dblank = sqrt(do^2+4*do*hshell-0.5*rcorner)

How to determine blank size for drawing?

One of the first jobs of the draw die designer is to find the size of the blank to be used for making a given cup. It is often difficult to find a blank of the exact size required for making a given shell because of thinning and thickening of sheet during drawing. The calculation could be based on volume, surface area or by layout.
These are only the theoretical blank sizes, based on the surface area of the shell and blank. For practical purposes, it is necessary to add additional allowances to provide for trimming of the uneven and irregular rim of the deep drawn cup.

How to Calculate Blank Size when there is Corner Radius on Punch?

Blank Size when there is Corner Radius on Punch calculator uses Blank Diameter = sqrt(Outer Shell Diameter^2+4*Outer Shell Diameter*Shell Height-0.5*Corner Radius on Punch) to calculate the Blank Diameter, Blank size when there is corner radius on punch is that blank size which is required to form final product from drawing. Blank Diameter is denoted by dblank symbol.

How to calculate Blank Size when there is Corner Radius on Punch using this online calculator? To use this online calculator for Blank Size when there is Corner Radius on Punch, enter Outer Shell Diameter (do), Shell Height (hshell) & Corner Radius on Punch (rcorner) and hit the calculate button. Here is how the Blank Size when there is Corner Radius on Punch calculation can be explained with given input values -> 84191.54 = sqrt(0.0799912^2+4*0.0799912*0.00216-0.5*3.001E-06).

FAQ

What is Blank Size when there is Corner Radius on Punch?
Blank size when there is corner radius on punch is that blank size which is required to form final product from drawing and is represented as dblank = sqrt(do^2+4*do*hshell-0.5*rcorner) or Blank Diameter = sqrt(Outer Shell Diameter^2+4*Outer Shell Diameter*Shell Height-0.5*Corner Radius on Punch). Outer Shell Diameter refer to the measurement across the widest part of any cylindrical object, Shell Height is the longitudinal length measured along its axis & Corner radius on punch is that radius which is provided on the outer edge.
How to calculate Blank Size when there is Corner Radius on Punch?
Blank size when there is corner radius on punch is that blank size which is required to form final product from drawing is calculated using Blank Diameter = sqrt(Outer Shell Diameter^2+4*Outer Shell Diameter*Shell Height-0.5*Corner Radius on Punch). To calculate Blank Size when there is Corner Radius on Punch, you need Outer Shell Diameter (do), Shell Height (hshell) & Corner Radius on Punch (rcorner). With our tool, you need to enter the respective value for Outer Shell Diameter, Shell Height & Corner Radius on Punch 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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