Ceramic-coated CBN Insert
In the demanding world of precision machining, achieving superior surface finishes and extended tool life on hardened steels and difficult-to-cut alloys is a constant pursuit. Our advanced Ceramic-coated CBN Insert is engineered to be the definitive solution, offering a unique combination of extreme hardness, thermal stability, and wear resistance. This innovative tool is specifically designed to excel in high-speed, high-temperature finishing operations. For applications requiring the ultimate in material integrity, our High-hardness CBN Insert provides unmatched resistance to abrasive wear. When dimensional accuracy is non-negotiable, the High-precision CBN Insert ensures consistent, tight-tolerance machining. The inherent High-temperature Resistant CBN Insert properties are further enhanced by our proprietary ceramic coating, allowing it to maintain cutting edge integrity under intense thermal loads. For interrupted cuts or unstable conditions, the robust design of our Impact-resistant CBN Insert offers exceptional durability and reliability.
The exceptional performance of the Ceramic-coated CBN Insert stems from its meticulously engineered multi-layer architecture. At its core is a premium Cubic Boron Nitride (CBN) substrate, selected for its extreme hardness second only to diamond. This substrate is then bonded to a rugged tungsten carbide base, providing excellent shock absorption and structural support. The critical innovation is the application of a state-of-the-art ceramic coating via a controlled PVD (Physical Vapor Deposition) process. This ultra-thin, yet incredibly tough coating acts as a thermal barrier, significantly reducing heat transfer to the substrate and minimizing chemical diffusion and oxidation at the cutting edge. The result is a tool that maintains a sharper cutting edge for longer, dramatically reducing friction, built-up edge formation, and overall tool wear. This directly translates to higher machining speeds, improved part quality with exceptional surface finishes, and a substantial increase in productivity by reducing downtime for tool changes.
Key Specifications & Technical Data
- Substrate Material: High-density CBN content (60% - 65%) on Tungsten Carbide base
- Coating Type: Multi-layered PVD Ceramic Coating (AlTiN/TiSiN based)
- Coating Thickness: 3 ~ 5 microns
- Hardness (HV): Substrate: >3500; Coating Surface: >3200
- Thermal Stability: Stable up to 1200°C (2192°F)
- Primary Application: Finish machining of hardened steels (45-65 HRC), gray cast iron, and powder metals
- Recommended Cutting Speed (Vc): 200 - 450 m/min for hardened steel
| Grade Code | CBN Content | Binder Phase | Best For Material Hardness (HRC) | Nose Radius (Typical) |
|---|---|---|---|---|
| CCBN-H10 | 60% | TiC/TiN | 50 - 58 | 0.4 mm, 0.8 mm |
| CCBN-H20 | 65% | TiAlN | 55 - 62 | 0.2 mm, 0.4 mm |
| CCBN-H30 | 60% | Ceramic Enhanced | 45 - 55 (High-speed finishing) | 0.8 mm, 1.2 mm |
Performance Advantages & Comparison
| Performance Metric | Standard CBN Insert | Ceramic-coated CBN Insert | Improvement |
|---|---|---|---|
| Tool Life in Hard Steel Machining | Base Reference | 2X - 4X Longer | +200% to +300% |
| Average Surface Finish (Ra) | 0.4 - 0.6 μm | 0.2 - 0.3 μm | Up to 50% Smoother |
| Maximum Sustainable Cutting Speed | ~300 m/min | ~450 m/min | +50% Higher Speed |
| Resistance to Thermal Cracking | Moderate | Excellent | Significantly Enhanced |
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