| Nib material | PCD
|
TC
|
SSCD
|
ND
|
| Size range availability (1) | ||||
| Min. | 0.040 mm | 0.127 mm | 0.007 mm | 0.007 mm |
| Max. | 35.0 mm | n/a | 2.150 mm | 2.0 mm |
| Approx. relative durability (2) | ||||
| Non-ferrous | 50 – 500x | 1x | 17 – 33x | 17 – 33x |
| Ferrous | 8 – 70x | 1x | 4 – 9x | 4 – 9x |
| Approx. relative price (3) | ||||
| 0.460 mm | 3 – 8x | 1x | 3x | 5x |
| 1.001 mm | 7 – 8x | 1x | 15x | 15x |
| 10 mm | 20 – 26x | 1x | – | – |
| Physical properties (4) | ||||
| Elastic modulus | 850 – 1150 | 450 – 650 | 1120 | 700 – 1220 |
| Thermal conductivity | 500 – 600 | 100 | 800 – 2000 | 300 – 1000 |
1.The size range is for indication only. The maximum and minimum size depends on the required drawing die profile. MN Manufactory’s Drawing Die Wizard software can be used to check if a certain blank can be used, or ask MN Manufactory for guidance.
2.Relative durability is a comparison to tungsten carbide dies. The durability is for indication only and can differ depending on the drawn wire type, wire condition, lubricant used, and wire drawing conditions.
3.Relative price is a comparison to tungsten carbide dies. The relative price is for indication only and can differ depending on the tolerance, die geometry, casing size and any other requirements.
4.Elastic modulus is measured in GPa, and thermal conductivity in W/mK. More information on elastic modulus and thermal conductivity can be found on Wikipedia.
PCD (Polycrystalline Diamond) wire dies and TC (Tungsten Carbide) wire dies are both used in wire drawing processes, but they have some key differences in terms of their material properties, performance, and applications.
| Material Properties | Performance | Applications | |
| PCD wire dies | PCD wire dies are made from a
synthetic diamond material that is extremely hard, wear-resistant, and has low friction. PCD is known for its excellent thermal conductivity, which allows for efficient heat dissipation during wire drawing process. |
PCD wire dies are known for their
superior performance in terms of wear resistance, which results in longer die life and less frequent die changes. PCD wire dies also typically require less lubrication during the wire drawing process due to their low friction properties. |
PCD wire dies are commonly
used in wire drawing processes for non-ferrous metals, such as aluminum, copper, and their alloys. They are also suitable for drawing softer materials like plastics and fibers.
|
| TC wire dies | TC wire dies, on the other hand, are
made from tungsten carbide, which is a hard and dense material. Tungsten carbide is known for its high melting point and resistance to wear, but it has lower thermal conductivity compared to PCD. |
TC wire dies are also wear-resistant, but they may have
a shorter die life compared to PCD wire dies, especially when drawing harder or abrasive materials. TC wire dies may also require more frequent lubrication to prevent galling and reduce wear. |
TC wire dies are often used for drawing harder
materials, such as steel, stainless steel, and other ferrous metals. |
| Item | Soft wire product | Hard wire product |
| Bell angle (α) | 70°±20° | 60°±20° |
| Approach angle (β) | 35°±5° | 30°±5° |
| Reduction angle (γ) | 18°±2° | 12°±2° |
| Bearing length (D) | 20-50 | 40-60 |
| Back relief angle(θ) | 20-50 | 15°±5° |
| Exit angle (φ) | 50°±20° | 50°±20° |
