Precision YG15 Tungsten Carbide Punch Professional Manufacturing Solution
YG15 tungsten carbide punches utilize premium hard alloy material with 15% cobalt content, offering exceptional hardness (HRA87) and outstanding impact resistance. Our precision manufacturing process ensures dimensional accuracy within ±0.002mm and achieves mirror-like surface finish of Ra0.1, meeting the most demanding industrial applications.
Precision Manufacturing Process
1. Material Preparation Stage
- Uses high-purity WC powder (99.95% purity) with precise cobalt ratio
- Isostatic pressing ensures uniform material density
- Vacuum sintering controls grain growth for homogeneous fine-grained structure
2. Machining Stage
| Process | Equipment | Accuracy Control | Allowance |
| Rough OD Grinding | CNC Cylindrical Grinder | IT6 Grade | 0.3-0.5mm |
| Semi-finish ID Grinding | Jig Grinder | IT5 Grade | 0.05-0.08mm |
| Precision Surface Grinding | High-precision Surface Grinder | ±0.005mm | 0.01-0.02mm |
3. Ultra-Precision Finishing Stage
- Nano-level Lapping: Diamond compound with progressively finer grit (W40 to W0.5)
- Mirror Polishing: Fiber polishing wheel with diamond suspension for Ra0.1 finish
- Final Sizing: Real-time adjustment through online measurement feedback system
Key Technical Guarantees
Environmental Controls:
- Temperature-controlled workshop (20±1℃)
- Class 10,000 cleanroom environment
- Anti-vibration foundation (<2μm vibration amplitude)
Inspection System:
- CMM (Accuracy: 0.5μm+L/200)
- White light interferometer surface profiler
- SEM microstructure analysis
- X-ray residual stress testing
Material Certification
| Product Name | Grade | Byname |
| Tungsten Carbide Blade | YG15 | Wolfram Carbide |
| Density | Hardness | TRS | HC | MS |
| (g/cm3) | (HRA) | (N/mm2) | (KA/m) | (emu/g) |
| 14.03 | 87.3 | 3100 | 9.81 | 21.91 |
| |
| Porosity | Grain Size | | | |
| μm | | | |
| A02B02C00 | 1.6-2.0 | | | |
Tungsten carbide (WC) is an ultra-hard ceramic material composed of tungsten and carbon, renowned for its exceptional hardness, wear resistance, and chemical stability. Its chemical formula is WC, with a hexagonal crystal structure and a high density of 15.6–15.8 g/cm³—nearly twice that of steel. It has an extremely high melting point of 2,870°C, ensuring excellent thermal stability. In terms of hardness, tungsten carbide has a Mohs hardness of 8.5–9, approaching that of diamond, and a Vickers hardness of 1,700–2,400 HV, far exceeding high-speed steel. Additionally, its thermal conductivity is 110 W/(m·K), providing outstanding heat dissipation, and it exhibits strong chemical inertness, resisting most acids and alkalis—though it is susceptible to hydrofluoric-nitric acid mixtures.
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