wire drawing dies calculation

D = wire diameter
Dl = beginning wire diameter
Ds = ending wire diameter
AR = reduction in area
N = number of dies
Df = finished diameter of the die
Bl = bearing length
A = die angle
Back A = back relief angle

Finished diameter by reduction:

Starting diameter by reduction:

Even reduction in area:

Area in reduction:

Elongation %:

Meeting Point:

5%

10%

15%

20%

25%

30%

35%

2°

2.73

1.33

0.86

0.63

0.49

0.39

0.33

4°

5.46

2.66

1.72

1.26

0.97

0.79