Different wire drawing processes require varying mold material specifications. This article explains how to select the appropriate die core material based on wire diameter, material type, and production output.
Different wire drawing processes require varying mold material specifications. This article explains how to select the appropriate die core material based on wire diameter, material type, and production output.
Overview of Wire Drawing Die Materials
Common wire drawing die materials include:
- Natural Diamond: Highest hardness, but scarce resources and high cost.
- PCD polycrystalline diamond: Cost-effective and widely applicable
- CVD Diamond: Highest purity, superior performance
- Cemented Carbide: Low cost, suitable for rough pulling
Selection Criteria
1. Wire Material
| Wire Type | Recommended Mold Materials |
|---|---|
| Copper/Aluminum Wire | PCD and CVD Diamond |
| Stainless steel wire | CVD Diamond |
| Tungsten/Molybdenum Wire | CVD Diamond |
| Carbon Steel Wire | Cemented Carbide, PCD |
2. Wire gauge range
- Fine wire (<0.1mm): Prioritize CVD diamond for high aperture precision.
- Midline (0.1-1mm): Both PCD and CVD diamonds are acceptable.
- Thick lines (>1mm): PCD Diamond, more cost-effective
3. Production Batch
- Mass production: CVD diamond, longest service life
- Mass Production: PCD diamond, best value for money
- Small Batch / Prototype: Tungsten carbide, lowest cost
Recommended Guangren Products
- QSD Series: Ideal for standard wire drawing; cost-effective
- GRD Series: Suitable for high-precision applications
- QYD Series: Suitable for drawing large-diameter and irregular-shaped wires
Technical Support
For professional mold selection advice, contact our technical team. We'll provide a customized solution based on your specific operating conditions.