Bend Allowance Solution

STEP 0: Pre-Calculation Summary
Formula Used
Bend Allowance = Subtended Angle in Radians*(Radius+Stretch Factor*Bar Thickness of metal)
Ballow = θ*(rc+λ*tbr)
This formula uses 5 Variables
Variables Used
Bend Allowance - (Measured in Meter) - Bend Allowance is the arc length of the bend as measured along the neutral axis of the material.
Subtended Angle in Radians - (Measured in Radian) - Subtended Angle in radians is the angle made by something from a given viewpoint.
Radius - (Measured in Meter) - Radius is a straight line extending from the center or focus of a curve to any point on its perimeter.
Stretch Factor - Stretch factor of an embedding measures the factor by which the embedding distorts distances.
Bar Thickness of metal - (Measured in Meter) - Bar Thickness of metal refer to the thickness of a bar-shaped object, such as a metal bar or a structural element in a construction project.
STEP 1: Convert Input(s) to Base Unit
Subtended Angle in Radians: 3.14 Radian --> 3.14 Radian No Conversion Required
Radius: 0.007 Millimeter --> 7E-06 Meter (Check conversion ​here)
Stretch Factor: 0.44 --> No Conversion Required
Bar Thickness of metal: 0.004 Millimeter --> 4E-06 Meter (Check conversion ​here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Ballow = θ*(rc+λ*tbr) --> 3.14*(7E-06+0.44*4E-06)
Evaluating ... ...
Ballow = 2.75064E-05
STEP 3: Convert Result to Output's Unit
2.75064E-05 Meter -->0.0275064 Millimeter (Check conversion ​here)
FINAL ANSWER
0.0275064 0.027506 Millimeter <-- Bend Allowance
(Calculation completed in 00.004 seconds)

Credits

Creator Image
Created by Team Softusvista
Softusvista Office (Pune), India
Team Softusvista has created this Calculator and 600+ more calculators!
Verifier Image
Verified by Himanshi Sharma
Bhilai Institute of Technology (BIT), Raipur
Himanshi Sharma has verified this Calculator and 800+ more calculators!

20 Metal Cutting Calculators

Total Minimum Cost
​ Go Total Minimum Cost = (Minimum Cost/((Tool Cost/Machine Cost+Tool Changing Time)*(1/Number of Rotation-1))^Number of Rotation)
Shear Plane Angle
​ Go Shear Angle Metal = arctan((Chip Ratio*cos(Rake Angle))/(1-Chip Ratio*sin(Rake Angle)))
Shear Angle
​ Go Shear Angle Metal = atan(Width*cos(Theta)/(1-Width*sin(Theta)))
Normal Force
​ Go Normal Force = Centripetal Force*sin(Theta)+Tangential Force*cos(Theta)
Shear Force
​ Go Shear Force = Centripetal Force*cos(Theta)-Tangential Force*sin(Theta)
Maximum Production Rate
​ Go Maximum Production Rate = Cost of metal cutting/(((1/Number of Rotations-1)*Tool Changing Time)^Number of Rotations)
Shear Strain in Machining
​ Go Shear Strain Machining = tan(Shear Angle Plane-Rake Angle)+cos(Shear Angle Plane)
Shear Strain
​ Go Shear Strain = tan(Shear Angle Metal)+cot(Shear Angle Metal-Rake Angle)
Bend Allowance
​ Go Bend Allowance = Subtended Angle in Radians*(Radius+Stretch Factor*Bar Thickness of metal)
Volumetric Removal Rate in electrochemical machining
​ Go Volumetric Removal Rate = Atomic Weight*Current Value/(Material Density*Valency*96500)
Electro Discharge Machining
​ Go Electro Discharge Machining = Voltage*(1-e^(-Time/(Resistance*Capacitance)))
Peak to Valley Height
​ Go Height = Feed/(tan(Angle A)+cot(Angle B))
Extrusion and Wire Drawing
​ Go Extrusion and Wire Drawing = Stretch factor in Drawing operation*ln(Ratio of Area)
Sheer Yield Strength
​ Go Shear Yield Strength = Width*Feed*cosec(Shear Angle)
Mass Removal Rate
​ Go Mass Removal Rate = Weight*Current Magnitude/(Valency*96500)
Specific Power Consumption
​ Go Specific Power Consumption = Force/(Width*Feed)
Cutting Speed given Angular Speed
​ Go Cutting Speed = pi*Diameter*Angular Speed
Shear Strain given Tangential Displacement and Original Length
​ Go Shear Strain = Tangential Displacement/Initial Length
Maximum Profit Rate
​ Go Maximum Profit Rate = 1/(Feed*Rotation Speed)
Peak to Valley Height given Feed and Radius
​ Go Peak to Valley Height = (Feed^2)/8*Radius

6 Bending Operation Calculators

Stock Thickness used in Bending Operation
​ Go Stock Thickness of Sheet = sqrt((Bending Force*Width between Contact Points)/(Bending Die Constant*Bent Part Length*Ultimate Tensile Strength))
Length of Bent part in Bending Operation
​ Go Bent Part Length = (Bending Force*Width between Contact Points)/(Bending Die Constant*Ultimate Tensile Strength*Stock Thickness of Sheet^2)
Width between Contact Points during Bending
​ Go Width between Contact Points = (Bending Die Constant*Bent Part Length*Ultimate Tensile Strength*Blank Thickness^2)/Bending Force
Bending Force
​ Go Bending Force = (Bending Die Constant*Bent Part Length*Ultimate Tensile Strength*Blank Thickness^2)/Width between Contact Points
Bend Allowance
​ Go Bend Allowance = Subtended Angle in Radians*(Radius+Stretch Factor*Bar Thickness of metal)
Clearance between Two Shears
​ Go Clearance Between Two Shears = 0.0032*Blank or Initial Sheet Thickness*(Shear Strength of Material)^0.5

Bend Allowance Formula

Bend Allowance = Subtended Angle in Radians*(Radius+Stretch Factor*Bar Thickness of metal)
Ballow = θ*(rc+λ*tbr)

What is Bend Deduction?

By definition, the bend deduction is the difference between the bend allowance and twice the outside setback.

How to Calculate Bend Allowance?

Bend Allowance calculator uses Bend Allowance = Subtended Angle in Radians*(Radius+Stretch Factor*Bar Thickness of metal) to calculate the Bend Allowance, Bend Allowance is the arc length of the bend as measured along the neutral axis of the material you are using. Bend Allowance is denoted by Ballow symbol.

How to calculate Bend Allowance using this online calculator? To use this online calculator for Bend Allowance, enter Subtended Angle in Radians (θ), Radius (rc), Stretch Factor (λ) & Bar Thickness of metal (tbr) and hit the calculate button. Here is how the Bend Allowance calculation can be explained with given input values -> 27.5064 = 3.14*(7E-06+0.44*4E-06).

FAQ

What is Bend Allowance?
Bend Allowance is the arc length of the bend as measured along the neutral axis of the material you are using and is represented as Ballow = θ*(rc+λ*tbr) or Bend Allowance = Subtended Angle in Radians*(Radius+Stretch Factor*Bar Thickness of metal). Subtended Angle in radians is the angle made by something from a given viewpoint, Radius is a straight line extending from the center or focus of a curve to any point on its perimeter, Stretch factor of an embedding measures the factor by which the embedding distorts distances & Bar Thickness of metal refer to the thickness of a bar-shaped object, such as a metal bar or a structural element in a construction project.
How to calculate Bend Allowance?
Bend Allowance is the arc length of the bend as measured along the neutral axis of the material you are using is calculated using Bend Allowance = Subtended Angle in Radians*(Radius+Stretch Factor*Bar Thickness of metal). To calculate Bend Allowance, you need Subtended Angle in Radians (θ), Radius (rc), Stretch Factor (λ) & Bar Thickness of metal (tbr). With our tool, you need to enter the respective value for Subtended Angle in Radians, Radius, Stretch Factor & Bar Thickness of metal and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
Let Others Know
Facebook
Twitter
Reddit
LinkedIn
Email
WhatsApp
Copied!