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Sheet-Metal Punching Force Calculator — result sheet
Estimate the force needed to shear a perimeter through sheet material from perimeter, thickness, shear strength, and a safety factor.
Inputs used
Results
Visual chart
Breakdown
Calculation steps
Returned data table
Formula and methodology
Formula: Ideal shear force = cut perimeter × sheet thickness × shear strength; planning force = ideal force × safety factor.
The estimate treats the cut edge as a shearing perimeter and makes the material strength and planning factor visible.
This result follows the calculator's declared inputs, precision, validation boundaries, and model limits.
Input contract
- Cut perimeter — m; minimum 1.0E-6; maximum 1000000
- Sheet thickness — m; minimum 1.0E-6; maximum 1000
- Material shear strength — MPa; minimum 1.0E-6; maximum 1000000
- Planning safety factor — minimum 1.0E-6; maximum 100
Worked example
| Input | Value |
|---|---|
| Cut perimeter | 0.2 |
| Sheet thickness | 0.002 |
| Material shear strength | 250 |
| Planning safety factor | 1.2 |
Ideal force = 100 kN; planning force = 120 kN.
Assumptions and limits
- Perimeter and thickness use metres, while shear strength is converted from MPa to Pa.
- The shear strength represents the sheet condition and the tool engages the full perimeter at once.
- Clearance, punch geometry, friction, press dynamics, fracture progression, tooling life, and machine certification are not modeled.
Calculator note
Source and methodology
Use the official WorldCalculate methodology policy for the source, formula, precision, and boundary standards behind this calculator.
Planning estimate, not financial, medical, legal, or professional advice. © WorldCalculate — reuse with attribution. Built and curated by Hassan ALRowaie.
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