Wire drawing reduces cross-sectional area through a sequence of dies. This calculator distributes the entered total area ratio equally across an entered die count.
Wire-drawing Machine Interactive Calculator
Enter entry/final diameters, die count, yield reference and stress at 25% reduction. Geometry is exact for circular diameters; stress and margin are screening assumptions.
Equation Used
- Wire sections are circular.
- Every pass uses the same area ratio.
- Diameters and die count are entered independently.
- Stress scales linearly from the entered 25% reference.
- Drawing force, friction, die geometry, hardening and heat are omitted.
Equal-Ratio Drawing Passes
The animation shows a circular wire stepping through equal area-ratio dies.
What This Calculator Represents
Area-reduction geometry plus a declared linear stress screen.
Area-Reduction Equations
Rpass=100(1-r^(1/n))
Rtotal=100(1-r)
Worked Scenario
The default 2.05 mm to 0.8 mm schedule is divided into 13 equal area-ratio passes.
Model Boundary
No drawing load, die pressure, hardening curve, friction, heat or process qualification is calculated.
Frequently Asked Questions
Are diameter reductions equal?
No; area ratios are equal.
Is stress physically predicted?
No; it is a declared linear screen.
Is yield margin a safety factor?
No.
Are die angles included?
No.
Is friction included?
No.
Can this qualify a draw schedule?
No.
References
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