Thickness of Stock at given Point on Entry Side Solution

STEP 0: Pre-Calculation Summary
Formula Used
Thickness at Entry = (Pressure Acting at Entry*Initial Thickness)/(Mean Yield Shear Stress*exp(Coefficient of Friction*(H Factor at Entry Point on Workpiece-Factor H at a Point on Workpiece)))
he = (Pen*hin)/(Se*exp(μrp*(Hin-Hx)))
This formula uses 1 Functions, 7 Variables
Functions Used
exp - n an exponential function, the value of the function changes by a constant factor for every unit change in the independent variable., exp(Number)
Variables Used
Thickness at Entry - (Measured in Meter) - Thickness at Entry is defined as the thickness of stock at any point between entry and neutral point.
Pressure Acting at Entry - (Measured in Pascal) - Pressure Acting at Entry is the force per unit area of Rollers on the sheet at the entry region.
Initial Thickness - (Measured in Meter) - Initial Thickness is the thickness of sheet before the rolling operation.
Mean Yield Shear Stress - (Measured in Pascal) - Mean Yield Shear Stress represents the average shear stress at which the material begins to yield or undergo plastic deformation.
Coefficient of Friction - Coefficient of Friction(μ) is the ratio defining the force that resists the motion of one body in relation to another body in contact with it.
H Factor at Entry Point on Workpiece - H Factor at Entry Point on Workpiece is used in rolling calculations to account for the interaction between the material, the rollers, and the deformation process.
Factor H at a Point on Workpiece - Factor H at a Point on Workpiece is used in rolling calculations to account for the interaction between the material, the rollers, and the deformation process.
STEP 1: Convert Input(s) to Base Unit
Pressure Acting at Entry: 9.9E-06 Newton per Square Millimeter --> 9.9 Pascal (Check conversion ​here)
Initial Thickness: 3.5 Millimeter --> 0.0035 Meter (Check conversion ​here)
Mean Yield Shear Stress: 4359.69 Pascal --> 4359.69 Pascal No Conversion Required
Coefficient of Friction: 0.5 --> No Conversion Required
H Factor at Entry Point on Workpiece: 3.35 --> No Conversion Required
Factor H at a Point on Workpiece: 4 --> No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
he = (Pen*hin)/(Se*exp(μrp*(Hin-Hx))) --> (9.9*0.0035)/(4359.69*exp(0.5*(3.35-4)))
Evaluating ... ...
he = 1.10000164881524E-05
STEP 3: Convert Result to Output's Unit
1.10000164881524E-05 Meter -->0.0110000164881524 Millimeter (Check conversion ​here)
FINAL ANSWER
0.0110000164881524 0.011 Millimeter <-- Thickness at Entry
(Calculation completed in 00.004 seconds)

Credits

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Created by Rajat Vishwakarma
University Institute of Technology RGPV (UIT - RGPV), Bhopal
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Verified by Nishan Poojary
Shri Madhwa Vadiraja Institute of Technology and Management (SMVITM), Udupi
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Analysis at Entry Region Calculators

Pressure Acting on Rolls from Entry Side
​ LaTeX ​ Go Pressure Acting at Entry = Mean Yield Shear Stress*Thickness at Entry/Initial Thickness*exp(Coefficient of Friction*(2*sqrt(Radius of Roller/Final Thickness after Rolling)*atan(Angle made by Point Roll Center and Normal*sqrt(Radius of Roller/Final Thickness after Rolling))-2*sqrt(Radius of Roller/Final Thickness after Rolling)*atan(Angle of Bite*sqrt(Radius of Roller/Final Thickness after Rolling))))
Mean Yield Shear Stress given Pressure on Entry Side
​ LaTeX ​ Go Mean Yield Shear Stress = (Pressure Acting at Entry*Initial Thickness/Thickness at Entry)/(exp(Coefficient of Friction*(H Factor at Entry Point on Workpiece-Factor H at a Point on Workpiece)))
Thickness of Stock at given Point on Entry Side
​ LaTeX ​ Go Thickness at Entry = (Pressure Acting at Entry*Initial Thickness)/(Mean Yield Shear Stress*exp(Coefficient of Friction*(H Factor at Entry Point on Workpiece-Factor H at a Point on Workpiece)))
Pressure on Rolls given H (Entry Side)
​ LaTeX ​ Go Pressure Acting at Entry = Mean Yield Shear Stress*Thickness at Entry/Initial Thickness*exp(Coefficient of Friction*(H Factor at Entry Point on Workpiece-Factor H at a Point on Workpiece))

Thickness of Stock at given Point on Entry Side Formula

​LaTeX ​Go
Thickness at Entry = (Pressure Acting at Entry*Initial Thickness)/(Mean Yield Shear Stress*exp(Coefficient of Friction*(H Factor at Entry Point on Workpiece-Factor H at a Point on Workpiece)))
he = (Pen*hin)/(Se*exp(μrp*(Hin-Hx)))

How does pressure on rolls vary?

The pressure on rolls starts from the entry point and continues to build up till the neutral point. Similarly the exit pressure is zero at the exit point and increases towards the neutral point. At any section i, between the entry point and exit point in the rolls.

How to Calculate Thickness of Stock at given Point on Entry Side?

Thickness of Stock at given Point on Entry Side calculator uses Thickness at Entry = (Pressure Acting at Entry*Initial Thickness)/(Mean Yield Shear Stress*exp(Coefficient of Friction*(H Factor at Entry Point on Workpiece-Factor H at a Point on Workpiece))) to calculate the Thickness at Entry, The Thickness of stock at given point on entry side formula is defined as the thickness of stock or the work piece at the beginning of the rolling process between entry and neutral point. Thickness at Entry is denoted by he symbol.

How to calculate Thickness of Stock at given Point on Entry Side using this online calculator? To use this online calculator for Thickness of Stock at given Point on Entry Side, enter Pressure Acting at Entry (Pen), Initial Thickness (hin), Mean Yield Shear Stress (Se), Coefficient of Friction rp), H Factor at Entry Point on Workpiece (Hin) & Factor H at a Point on Workpiece (Hx) and hit the calculate button. Here is how the Thickness of Stock at given Point on Entry Side calculation can be explained with given input values -> 8.132617 = (9.9*0.0035)/(4359.69*exp(0.5*(3.35-4))).

FAQ

What is Thickness of Stock at given Point on Entry Side?
The Thickness of stock at given point on entry side formula is defined as the thickness of stock or the work piece at the beginning of the rolling process between entry and neutral point and is represented as he = (Pen*hin)/(Se*exp(μrp*(Hin-Hx))) or Thickness at Entry = (Pressure Acting at Entry*Initial Thickness)/(Mean Yield Shear Stress*exp(Coefficient of Friction*(H Factor at Entry Point on Workpiece-Factor H at a Point on Workpiece))). Pressure Acting at Entry is the force per unit area of Rollers on the sheet at the entry region, Initial Thickness is the thickness of sheet before the rolling operation, Mean Yield Shear Stress represents the average shear stress at which the material begins to yield or undergo plastic deformation, Coefficient of Friction(μ) is the ratio defining the force that resists the motion of one body in relation to another body in contact with it, H Factor at Entry Point on Workpiece is used in rolling calculations to account for the interaction between the material, the rollers, and the deformation process & Factor H at a Point on Workpiece is used in rolling calculations to account for the interaction between the material, the rollers, and the deformation process.
How to calculate Thickness of Stock at given Point on Entry Side?
The Thickness of stock at given point on entry side formula is defined as the thickness of stock or the work piece at the beginning of the rolling process between entry and neutral point is calculated using Thickness at Entry = (Pressure Acting at Entry*Initial Thickness)/(Mean Yield Shear Stress*exp(Coefficient of Friction*(H Factor at Entry Point on Workpiece-Factor H at a Point on Workpiece))). To calculate Thickness of Stock at given Point on Entry Side, you need Pressure Acting at Entry (Pen), Initial Thickness (hin), Mean Yield Shear Stress (Se), Coefficient of Friction rp), H Factor at Entry Point on Workpiece (Hin) & Factor H at a Point on Workpiece (Hx). With our tool, you need to enter the respective value for Pressure Acting at Entry, Initial Thickness, Mean Yield Shear Stress, Coefficient of Friction, H Factor at Entry Point on Workpiece & Factor H at a Point on Workpiece 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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