Bump Bending Calculator
This Bump Bending Calculator helps you estimate the radius pitch, bend steps, and single bend angle required to form large-radius bends using multiple small hits. Just enter the total bend angle, V-opening, and target inner radius to get accurate setup values for smooth curved bending on a press brake.
Radius Pitch
Pitch = V-Opening ÷ 2
Bend Steps
Steps = round((Inner Radius × Bend Angle × π) ÷ (180 × Pitch))
Single Bend Angle
Single Bend Angle = 180 − 4.775 × V-Opening
- Bend Angle: Total angle to be formed (°)
- V-Opening: Width of the V-die opening (mm or inch)
- Inner Radius: Desired inside bend radius (mm or inch)
