Synthetic single crystal diamonds, also called synthetic mono crystal diamond, and abbreviated as SMCD, SSCD, MCD, or AD are man-made diamonds manufactured under controlled conditions and are free from inclusions and cracks. These tightly controlled quality aspects lead to a more predictable and constant die performance than that of a natural diamond die.
MN offers diamond drawing dies with synthetic single crystal diamond blanks for drawing ferrous and non-ferrous wires from 0.020 to 0.600 mm. Larger sizes are available upon request.
The SSCD blanks that MN uses are all <111> oriented. The result is a close-to-round wear pattern for each die, a quality aspect that previously could only be obtained in small natural diamond dies,The SMCD is suitable for the same applications as natural diamond dies
Blank dimensions of SSCD drawing dies are more consistent than natural diamond blanks, ensuring more predictable recut performance than natural diamond drawing dies.
| Nib material | SSCD
|
PCD
|
TC
|
ND
|
| Size range availability (1) | ||||
| Min. | 0.007 mm | 0.040 mm | 0.127 mm | 0.007 mm |
| Max. | 2.150 mm | 35.0 mm | n/a | 2.0 mm |
| Approx. relative durability (2) | ||||
| Non-ferrous | 17 – 33x | 50 – 500x | 1x | 17 – 33x |
| Ferrous | 4 – 9x | 8 – 70x | 1x | 4 – 9x |
| Approx. relative price (3) | ||||
| 0.460 mm | 3x | 3 – 8x | 1x | 5x |
| 1.001 mm | 15x | 7 – 8x | 1x | 15x |
| 10 mm | – | 20 – 26x | 1x | – |
| Physical properties (4) | ||||
| Elastic modulus | 1120 | 850 – 1150 | 450 – 650 | 700 – 1220 |
| Thermal conductivity | 800 – 2000 | 500 – 600 | 100 | 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.
| Product | Diameter | Diameter | Thickness | Thickness | Die size | Die size |
| Element 6 | mm | inches | mm | inches | mm | inches |
| MD111/06 | 0.60 | 0.024 | 0.60 | 0.024 | 0.020-0.050 | 0.0007-0.0019 |
| MD111/07 | 0.70 | 0.028 | 0.70 | 0.028 | 0.051-0.100 | 0.0020-0.0039 |
| MD111/08 | 0.80 | 0.031 | 0.80 | 0.031 | 0.101-0.200 | 0.0040-0.0078 |
| MD111/09 | 0.90 | 0.035 | 0.90 | 0.035 | 0.201-0.300 | 0.0079-0.0118 |
| MD111/10 | 1.00 | 0.039 | 1.00 | 0.039 | 0.301-0.400 | 0.0119-0.0157 |
| MD111/11 | 1.10 | 0.043 | 1.10 | 0.043 | 0.301-0.400 | 0.0119-0.0157 |
| MD111/12 | 1.20 | 0.047 | 1.20 | 0.047 | 0.401-0.500 | 0.0158-0.0196 |
| MD111/13 | 1.30 | 0.051 | 1.30 | 0.051 | 0.401-0.500 | 0.0158-0.0196 |
| MD111/14 | 1.40 | 0.055 | 1.40 | 0.055 | 0.501-0.600 | 0.0197-0.0236 |
▲SMCD MD Synthetic Mono crystalline Diamond Dies
| 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° |
Synthetic single crystal diamond has essentially the same material properties as natural diamond; therefore, SSCD diamonds can be used as an alternative to all applications where natural diamond is used.
Synthetic Mono crystal diamond can be chosen as a raw material for the following products :
●Wire drawing dies
●Bunching, Stranding and Compacting dies
●Shaped wire drawing dies
●Extrusion tools
●Burnishing dies
SMCD dies are frequently used for drawing:
