Polycrystalline Diamond Dies

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Polycrystalline diamond is manufactured by forming a mass of diamond crystals and then applying a combination of heat and pressure. Through this process, the mass becomes a single unit with the diamond particles inter-grown to each other. The final product is extremely wear resistant, maintains tight hole tolerances, and provides good surface finish.

 

Key benefits of diamond wire dies
Available for almost any type of wire drawing operation, from rod-size to fine-size
Can be used for wet and dry drawing applications
Predictable wire surface quality
Contain randomly oriented diamond crystals, making certain that wire remains round; even with significant wear the wire remains round
Blank dimensions are guaranteed, hence maximum recut dimensions can be predicted

 

Diameter range and standard tolerance of natural diamond dies:

Size range (mm)

Standard tolerance (mm)

Roundness(mm)

0.051-0.102ˉ

0.0010

0.0005

0.102-0.203ˉ

0.0015

0.00075

0.203-0.508ˉ

0.0020

0.0010

0.508-1.016ˉ

0.003

0.0015

1.016-1.524ˉ

0.0050

0.0025

1.524-1.981ˉ

0.007

0.0035

>1.981

0.010

0.005

Typical reduction angle and bearing length:

Reduction of Area

Lead/zinc/

silver/gold

Aluminum

/nickel/copper

Brass bronze

Stainless steel

High carbon steel

Hot tungsten

8-12%

16°

12°

11°

10°

10°

12-16%

18°

14°

13°

12°

12°

16-25%

22°

18°

16°

15°

12°

25-35%

24°

22°

19°

18°

14°

Bearing length

0.2-0.5d

0.4-0.8d