Single Crystal CVD Diamond Blanks for Wire Drawing Dies
Single crystal CVD diamond blanks for manufacturing high-performance wire drawing dies used in fine wire, ultra-fine wire and precision drawing applications.
Produced by chemical vapor deposition (CVD), these diamond blanks feature high purity, excellent wear resistance, high thermal conductivity and a binder-free single crystal structure. They are widely used for wire drawing dies where long service life, stable bore geometry and consistent wire quality are critical.
Available in square, rectangular and cylindrical formats, with custom dimensions, orientations and surface finishes available upon request.
Specifications
| Item | Description |
|---|---|
| Material | Single Crystal CVD Diamond |
| Manufacturing Method | Chemical Vapor Deposition (CVD) |
| Crystal Orientation | <111> Standard |
| Structure | Single Crystal, Binder-Free |
| Shape | Square, Rectangular or Cylindrical |
| Surface Condition | As-Cut, Ground, Semi-Polished or Polished |
| Size Range | Standard and Custom Sizes Available |
| Custom Manufacturing | Supported |
| Supply Mode | RFQ and Production Orders |
Standard Size Reference — CVD Diamond Blanks
| Square Blank Size | Cylindrical Blank Size |
|---|---|
| 1.0 × 1.0 × 0.6 mm | Φ1.0 × 0.6 mm |
| 1.2 × 1.2 × 0.6–0.9 mm | Φ1.2 × 0.6–0.9 mm |
| 1.5 × 1.5 × 1.0 mm | Φ1.5 × 1.0 mm |
| 2.0 × 2.0 × 1.0 / 1.2 mm | Φ2.0 × 1.0 / 1.2 mm |
| 3.0 × 3.0 × 1.5 / 2.0 mm | Φ3.0 × 1.5 / 2.0 mm |
| 4.0 × 4.0 × 2.0–3.0 mm | Φ4.0 × 2.0–3.0 mm |
Other sizes available upon request. Full size list available in the variant selector above.
Why Use Single Crystal CVD Diamond for Wire Drawing Dies?
Wire drawing dies operate under severe wear conditions and require precise dimensional stability over long production runs.
Compared with conventional die materials, single crystal CVD diamond offers:
High wear resistance
Excellent thermal conductivity
High material purity
Stable crystal structure
Long service life
Consistent drawing performance
These characteristics make CVD diamond particularly suitable for demanding wire drawing applications where die life and wire quality directly influence production efficiency.
Typical Applications
Single crystal CVD diamond blanks are commonly used for manufacturing: Precision wire drawing dies，Ultra-fine wire drawing dies，Semiconductor bonding wire dies，Medical wire dies，EDM wire dies，Precious metal wire dies，Tungsten wire dies，Copper and aluminum wire dies，Special alloy wire dies，Custom micro-hole drawing dies。
Crystal Orientation
Standard products are supplied with <111> crystal orientation, which is commonly selected for wire drawing die manufacturing.
Alternative orientations may be available depending on size, geometry and application requirements.
If crystal orientation is critical to your design, please specify the required orientation during inquiry.
Surface Finish Options
Several surface preparation levels are available depending on the customer's manufacturing process:
| Surface Condition | Typical Use |
|---|---|
| As-Cut | Customer machining and preparation |
| Ground | Intermediate processing stage |
| Semi-Polished | Improved surface quality |
| Polished | Precision die manufacturing |
The appropriate finish depends on the customer's EDM, laser drilling, polishing and die fabrication process.
CVD Diamond vs Conventional Die Materials
| Material | Typical Characteristics |
|---|---|
| Polycrystalline Diamond (PCD) | Good wear resistance and toughness |
| HPHT Monocrystalline Diamond (MCD) | Traditional single crystal die material |
| Single Crystal CVD Diamond | High purity, excellent thermal conductivity and stable crystal structure |
Material selection depends on wire type, drawing speed, bore size and service-life requirements.
Custom Manufacturing
Custom diamond blanks can be supplied according to drawing or specification requirements.
Available options include:
Custom dimensions
Square or cylindrical geometry
Crystal orientation selection
Surface preparation
Precision polishing
Batch production
Special inspection requirements
Ordering Information
For quotation, please provide:
Required blank dimensions
Crystal orientation
Surface finish requirement
Quantity
Drawing or tolerance requirements
Intended application
Drawings and technical specifications help us recommend the most suitable blank configuration for your die manufacturing process.