Poly Crystalline Diamond (PCD) wire drawing dies that can be used for ferrous and non-ferrous wire drawing applications. Sizes are available for drawing applications ranging from ultra-fine wire to large drawn rod. This size range include 0.040 to 35 mm (.00157~1.378”). PCD dies offer a high resistance to wear and an excellent wire surface finish.
Design Condition of Dies:
- Size of initial wire
- Reduction angle control
- Performance of drawing machine
- Property of drawing lubricant
When you need to customize diamond wire drawing dies, please consider the following factors:
- PCD insert size
- PCD grain size
- Hole geometry
- Casing size
UKO also produces various poly-crystalline special-shaped wire drawing dies such as square, rectangular, triangle, hexagon, semicircle, oval, sector, Z shape, and tile shapes.
The minimum eyelet for square drawing dies is 0.18×0.18 mm, the minimum eyelet for rectangular dies is 0.08×0.20 mm, the minimum eyelet for semicircular dies is 0.20×0.40mm, and the minimum eyelet for triangular is 0.25×0.25mm, and other specifications and shapes can also be customized according to customer requirements.
PCD’s tensile strength is only 70% of that of tungsten carbide but its hardness is 2.5 times that of tungsten carbide. These two characteristics make PCD wire drawing dies have the following advantages:
- High drawing efficiency.
- Good abrasive resistance.
- Good impact resistance.
- Superior wire surface.
- Reduction of labor intensity.
Difference between PCD and tungsten carbide dies
- PCD dies lifetime is 30-50 times as that of tungsten carbide dies. In this case, it does not need to stop machines to change dies. Moreover, PCD dies’ diameter changes a little in-unit time so the wire diameter also changes little. This is very good for reeling wire.
- PCD wire dies’ long lifetime and small hole change greatly reduce workers’ labor intensity.