Manufacturing Engineering
Sheet Metal Bend Simulator
Optimize sheet metal blanks with an interactive bend calculator. Calculate bend allowances, deductions, and setbacks dynamically based on material parameters and angles.
Design Parameter
Bend Radius + K-Factor
Neutral Axis Position
Standard Presets
Steel, Al, Copper
Interactive limits
Calculation
ISO 2768
CSV exportable data
Parameters
Material Preset
Bend Angle Cycle Playback
Bending Mechanics
Bend Allowance (BA)
BA = A * (pi/180) * (R + K * T)
Outer Setback (OSSB)
OSSB = (R + T) * tan(A/2)
Bend Deduction (BD)
BD = 2 * OSSB - BA
K-Factor: 0.44 - describes the shifting of the neutral axis from the inner fibers.
Flat Length = Length1 + Length2 + BA.
Interactive Sheet Deformation Diagram
Bend Allowance
4.52mm
Bend Deduction
3.48mm
Bending Force Est.
16.9kN
Outer Setback
4.00mm
Bend Allowance & Deduction vs Angle
Bend Calculations Table
| Bend Angle (°) | Bend Allowance (mm) | Bend Deduction (mm) |
|---|---|---|
| 10° | 0.50 | 0.20 |
| 20° | 1.00 | 0.41 |
| 30° | 1.51 | 0.64 |
| 40° | 2.01 | 0.90 |
| 50° | 2.51 | 1.22 |
| 60° | 3.02 | 1.60 |
| 70° | 3.52 | 2.08 |
| 80° | 4.02 | 2.69 |
| 90° | 4.52 | 3.48 |
| 100° | 5.03 | 4.51 |
| 110° | 5.53 | 5.90 |
| 120° | 6.03 | 7.83 |
| 130° | 6.54 | 10.62 |
| 140° | 7.04 | 14.94 |
| 150° | 7.54 | 22.32 |
| 160° | 8.04 | 37.33 |
| 170° | 8.54 | 82.89 |
| 180° | 9.05 | 130649914825562944.00 |