COVO ENGINEERING REFERENCE
Bend Allowance Calculator
Estimates the arc length of the neutral layer through a bend. Use the result as a preliminary planning reference and verify it before production.
Content reviewed:
What does this calculator do?
Estimates the arc length of the neutral layer through a bend.
Which inputs are required?
- Included bend angle
- Inside radius
- Material thickness
- K-factor
Output: Bend allowance
Formula or planning rule: BA = (pi / 180) x angle x (inside radius + K x thickness)
How should the result be verified?
Check the selected tool's load rating, the press brake capacity and working length, the actual material data and the bend method. Use a controlled first piece and measure the released part before approving production.
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Frequently asked questions
What does the Bend Allowance Calculator calculate?
Estimates the arc length of the neutral layer through a bend. The result is bend allowance.
Can the Bend Allowance Calculator approve a production setup?
No. It is a preliminary planning aid. Verify the result against the machine manual, tooling load chart, material certificate, safety requirements and a controlled test bend.