CBN Sharpening Wheel Superior Thermal Stability HSS Grinding 6A2 Metal Bond 150mm Low Grinding Burn

CBN Sharpening Wheel – Superior Thermal Stability & Heat Resistance

This CBN (Cubic Boron Nitride) Sharpening Wheel with metal bond is specifically designed for high-temperature grinding environments where thermal stability is paramount. CBN abrasives exhibit outstanding chemical inertness when in contact with ferrous materials at elevated temperatures, significantly reducing the risk of grinding burn, oxidation, and micro-cracking on HSS workpieces.

Key Advantages

• Superior Thermal Stability: CBN remains chemically stable up to 1200°C without reacting with high-speed steel (HSS), unlike diamond abrasives which graphitize at lower temperatures when grinding ferrous metals.
• Excellent Thermal Conductivity: With a thermal conductivity coefficient exceeding that of Al₂O₃ by over 10x, CBN rapidly channels heat away from the grinding zone. Combined with proper coolant application, this maintains lower workpiece surface temperatures and preserves the tool's original hardness.
• Reduced Grinding Burn & Cracks: The combination of high thermal stability and rapid heat dissipation minimizes the formation of grinding burn marks, surface oxidation, and micro-cracks, ensuring superior surface finish and extended tool life.

Performance Specifications

This 6A2 metal bond CBN wheel features a 150mm diameter with 100/120 mesh grit, optimized for semi-finishing and finishing operations. The metal bond matrix provides exceptional form holding capability under sustained thermal loads, making it ideal for precision tool grinding applications where thermal management is critical. Compatible with standard surface grinders and tool grinders with 31.75mm arbor.

Recommended Applications

• HSS cutting tool sharpening
• Surface grinding of hardened steel components
• Broach tooth face grinding
• Precision form grinding
• High-temperature grinding operations

ISO 9001:2015 certified manufacturing. Custom dimensions, grit sizes, and bond formulations available. Contact us for application engineering support and sample testing arrangements.