Calculate the stretch forming force for your aluminum profile! Estimate the flat development length, bending radius, and required tooling with our online calculator designed specifically for aluminum profile stretch bending.
For technical capability assessment, consider:
- Cylinder clamping distance vs. material elongation.
- Clamp size vs. profile cross-section.
- Maximum tensile force required for the material.
Forming Force Formula
Fstretch = 1.25 × Scross-section × σs
Where:
- Fstretch = Required force of the bending cylinder (N)
- Scross-section = Material cross-sectional area (mm²)
- σs = Material yield strength (MPa)
Aluminum Profile Stretch Bending Calculator
Calculate required force and validate bending radius
Profile Dimensions
Material Parameters
Bending Parameters
Calculation Results
The bending process is feasible if: Actual Strain ≤ Material Elongation
– Safe: Actual Strain ≤ 80% of Material Elongation
– Warning: Actual Strain between 80%-95% of Material Elongation
– Danger: Actual Strain ≥ 95% of Material Elongation (risk of cracking)
Calculation Explanation
Stretch Forming Force Calculation: Force(tons) = Cross-Section Area(mm²) × Yield Strength(MPa) × Coefficient(0.765) ÷ 10
Stretch Forming/Bending Validation: Based on material elongation criteria: ε = [(L₂ – L₁) / L₁] × 100% ≤ Material Elongation
Easy Way vs Hard Way: “Easy Way” means bending around the profile’s weak axis, requiring less force and allowing smaller bending radius; “Hard Way” means bending around the strong axis, requiring more force and larger bending radius.
Material Parameters: 6061-T6 yield strength is approximately 240MPa with 10% elongation, 6063-T6 is approximately 170MPa with 10% elongation.
Want to understand the science behind the calculations you just used? Explore how aluminum profiles deform under tension, how springback is controlled, and why stretch bending achieves high-precision results. See the full explanation in our Stretch Forming Guide.