Polycrystalline diamonds are man-made sintered diamonds. Diamond wire dies with PCD blanks can be used for ferrous and non-ferrous wire drawing applications and for virtually any type of wet and dry wire drawing process. Sizes are available for drawing applications ranging from large drawn rod to ultra-fine wire. This size range includes, but is not limited to 0.030 to 22 mm.
MN Die supply 4 different kinds of PCD dies to draw different materials, best applications by keeping high quality as well as low cost possible.
We supply semifinished dies and finished dies.
PCD dies are made for all kinds of applications in drawing, compacting, stranding, tube and bar calibrating.
| 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.
| 1 Micron | 3 Micron | 5 Micron | 12 Micron | 25 Micron | 50 Micron |
| Better surface quality | Better surface quality | Better surface quality | Longer die life | Longer die life | Longer die life |
| Tungsten | Tungsten | Tungsten | |||
| Brass covered steel | Brass covered steel | Brass covered steel | Brass covered steel | ||
| Speciaty metal | Speciaty metal | Speciaty metal | Speciaty metal | ||
| Low carbide steel | Low carbide steel | Low carbide steel | |||
| Welding wire | Welding wire | Welding wire | |||
| Stainless steel | Stainless steel | Stainless steel | |||
| Copper | Copper | ||||
| Aluminium | Aluminium |
▲Applications and PCD blanks grain
| ADDMA | Blanks Diamond
Size d(mm) |
Blanks Diamond
Size t(mm) |
Soft Wire Max New Hole
Diametre(mm) |
Soft Wire Max Recut Hole
Diametre(mm) |
Hard Wire Max New Hole
Diametre(mm) |
Hard Wire Max Recut
Hole Diametre(mm) |
Grain Size
1μm |
Grain Size
3μm |
Grain Size
5μm |
Grain Size
12μm |
Grain Size
25μm |
Grain Size
50μm |
Case Size
(mm) |
| D6 | 2.5 | 1.0 | 0.5 | 1.0 | 0.4 | 0.7 | ◎ | ◎ | ◎ | ◎ | 25*8 | ||
| D12 | 3.2 | 1.5 | 1.0 | 1.4 | 0.7 | 1.0 | ◎ | ◎ | ◎ | ◎ | 25*10 | ||
| D15 | 5.2 | 2.5 | 1.5 | 2.2 | 1.1 | 2.0 | ◎ | ◎ | ◎ | ◎ | 28*10 | ||
| D18 | 5.2 | 3.5 | 2.0 | 2.8 | 1.4 | ◎ | ◎ | ◎ | ◎ | 28*12 |
▲Self-supported blanks(without TC support ring)
| ADDMA | Blanks Diamond
Size D(mm) |
Blanks Diamond
Size d(mm) |
Blanks Diamond
Size t(mm) |
Soft Wire Max New
Hole Diametre(mm) |
Soft Wire Max Recut
Hole Diametre(mm) |
Hard Wire Max New
Hole Diametre(mm) |
Hard Wire Max Recut
Hole Diametre(mm) |
Grain Size
1μm |
Grain Size
3μm |
Grain Size
5μm |
Grain Size
12μm |
Grain Size
25μm |
Grain Size
50μm |
Case Size
(mm) |
| D12 | 4.00 | 1.5 | 1.5 | 0.8 | 1.0 | 0.6 | 0.7 | ◎ | ◎ | ◎ | ◎ | ◎ | 25*10 | |
| D15 | 8.12 | 4.0 | 2.3 | 1.8 | 2.2 | 1.3 | 1.5 | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | 28*10 |
| D18 | 8.12 | 4.0 | 2.9 | 2.3 | 2.4 | 1.6 | 1.7 | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | 28*12 |
| D21 | 13.65 | 7.0 | 4.0 | 3.5 | 3.7 | 2.5 | 2.6 | ◎ | ◎ | ◎ | ◎ | ◎ | 30*15 | |
| D24 | 13.65 | 7.0 | 5.3 | 4.6 | 5.0 | 3.2 | 3.5 | ◎ | ◎ | ◎ | ◎ | ◎ | 35*20 | |
| D27 | 24.13 | 13.0 | 8.6 | 5.8 | 7.5 | 4.1 | 5.3 | ◎ | ◎ | ◎ | ◎ | 35*20 | ||
| D30 | 24.13 | 13.0 | 11.6 | 7.6 | 8.0 | 5.3 | 5.6 | ◎ | ◎ | ◎ | ◎ | 43*27 | ||
| D33 | 24.13 | 15.0 | 15.0 | 10.5 | 11.1 | 7.4 | 7.7 | ◎ | ◎ | 75*40 | ||||
| D36 | 30.00 | 18.0 | 15.0 | 12.7 | 13.0 | 8.3 | 8.4 | ◎ | ◎ | 75*40 |
▲TC-support blanks(with support ring)
| 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° |
Typical Markets
Aluminum wire, copper wire, stainless steel wire, tire cord, welding wire, galvanized steel wire and saw wire.
Applications
Nonferrous wire, especially larger sizes where demanding wear is a problem, but surface finish is less critical.
Polycrystalline diamond can be chosen as a raw material for the following current products:
●Wire drawing dies●Bunching, Stranding and Compacting dies●Tubing dies●Split dies●Shaped wire drawing dies●Extrusion tools (both tips and dies)●Compacting dies●Guide dies●Burnishing dies
PCD dies are frequently used for drawing:
