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Bump Bending Calculator
Calculate parameters for bump (step) bending operations. Determine arc height, step angle, and number of steps needed to achieve a target bend radius.
- Arc Height: The vertical rise per bump/step.
- Step Angle: The angle achieved by each individual bump.
- Step Count: Number of bumps needed for the target angle.
- Bump Radius: Calculate required radius from desired arc height.
Bump Bending Calculator
Units:
mm
°
°
Theory & Formulas
Bump Bending Formulas:
Arc Height:
h = R × [1 - cos(θ / 2)]
Step Count:
n = Target Angle / Step Angle
Chord Length:
c = 2R × sin(θ / 2)
Where:
- R = Bump radius
- θ = Step angle
- h = Arc height per step
- n = Number of steps
- c = Chord length
Tips:
- Smaller step angles = smoother curves
- Typical step angle: 3° - 10°
- More steps = more uniform bend radius
Arc Height:
h = R × [1 - cos(θ / 2)]
Step Count:
n = Target Angle / Step Angle
Chord Length:
c = 2R × sin(θ / 2)
Where:
- R = Bump radius
- θ = Step angle
- h = Arc height per step
- n = Number of steps
- c = Chord length
Tips:
- Smaller step angles = smoother curves
- Typical step angle: 3° - 10°
- More steps = more uniform bend radius