WIRE DRAWING DIES CALCULATOR

Inlet Wire Size (d1) mm

Outlet / Final Wire Size (d2) mm

Area Reduction (%) Per Die

 

Inlet Size

0

Outlet Size

0

Reduction %

0

Total Dies

0

Die No.	Wire Size (mm)

Designed By Rana Gulfam Ahmad for Electrical Cable Manufacturing Industry

In wire drawing, the recommended Area Reduction (%) per die depends on the material and machine condition.

Material	Typical Area Reduction per Die
Copper Wire	15% – 25%
Aluminium Wire	12% – 22%
Steel Wire	10% – 20%

Copper Wire Drawing

• Fine wire: 15–20%
• Medium wire: 18–22%
• Rod breakdown: 20–25%

Aluminium Wire Drawing

• Fine wire: 12–18%
• Medium wire: 15–20%
• Rod breakdown: 18–22%

Formula

$\text{Area Reduction (\%)}=\frac{A_1-A_2}{A_1}\times100$

Where:

• A₁ = Initial Area
• A₂ = Final Area

Industry Practice

For electrical cable manufacturing:

• Copper: Most plants use 20% area reduction per die.
• Aluminium: Most plants use 18% area reduction per die.

These values provide a good balance between:

• Production speed
• Die life
• Surface finish
• Wire breakage control

For your Blogger Wire Drawing Die Series Calculator, a default setting of:

• Copper = 20%
• Aluminium = 18%

is generally recommended.