12A2-45 Dish Grinding Wheel 200x20x5x52x76 P B2-01 100% cBN1 B 126

The 12A2-45 dish grinding wheel is a high-precision superabrasive tool specifically designed for sharpening, face grinding, and profile grinding of cutting tools, dies, and precision components. The dish-shaped design with a 45° angle offers excellent access to workpiece surfaces, enabling superior control in edge sharpening, relief grinding, and precision finishing applications.

Manufactured using diamond or cubic boron nitride (CBN) abrasives, this wheel ensures long-lasting durability, high cutting efficiency, and excellent heat dissipation, making it ideal for use on CNC tool grinders, manual sharpening machines, and high-precision machining centers.

Key Features & Benefits

• Dish-Shaped Profile with a 45° Angle

  • Optimized for face and relief grinding of tools and components requiring precision angles and fine surface finishes.
  • Provides enhanced stability and reduces vibration, ensuring superior grinding accuracy.

• Highly Efficient for Tool & Cutter Sharpening

  • Ideal for resharpening carbide and HSS cutting tools, including end mills, drills, reamers, and inserts.
  • Ensures precise edge profiling, extending the lifespan of cutting tools.

• Exceptional Abrasive Performance & Edge Retention

  • Available in diamond and CBN variants, offering high removal rates while maintaining tool integrity.
  • Self-sharpening abrasive properties reduce dressing frequency and improve productivity.

• Minimal Thermal Damage & Enhanced Surface Finish

  • Advanced bond technology provides better coolant penetration, reducing the risk of heat-induced damage and burns.
  • Ensures ultra-fine surface finishes, suitable for high-precision components.

• Long Tool Life & Cost Efficiency

  • Superior wear resistance and bond strength extend tool longevity, reducing operational costs.
  • Suitable for high-speed grinding with minimal material wastage.

Material Compatibility

The 12A2-45 dish grinding wheel is engineered for high-precision machining of ultra-hard materials, ensuring optimal cutting performance and longevity.

Diamond Bond (for Non-Ferrous & Hard Non-Metallic Materials)

• Tungsten carbide tools
• Ceramic components (Alumina, Zirconia, Silicon Carbide, etc.)
• Glass and optical materials
• Composites and carbon fiber-reinforced materials
• Semiconductor substrates (silicon wafers, quartz, sapphire, etc.)

CBN Bond (for Ferrous Materials & Hardened Steels)

• High-speed steel (HSS) and tool steels
• Powder metallurgy components
• Superalloys (Inconel, titanium alloys, cobalt-based alloys, hardened stainless steel)
• Hardened cast iron and high-carbon steels

Applications

• Tool & Cutter Grinding

  • Used in CNC and manual tool grinders for sharpening drills, end mills, reamers, and carbide inserts.
  • Maintains consistent cutting edges, ensuring longer tool life and better machining performance.

• Relief Grinding & Precision Angle Grinding

  • Ideal for flute and relief grinding of cutting tools.
  • Ensures smooth, accurate angle formation in tool manufacturing.

• Surface Finishing & Profile Grinding

  • Used for mold and die grinding, edge finishing of carbide and ceramic parts, and superalloy processing.
  • Produces fine, chip-free surfaces on hardened components.

• Aerospace & Automotive Component Grinding

  • Suitable for high-precision grinding of complex geometries in turbine blades, gears, and wear-resistant parts.

• Glass, Optical & Semiconductor Processing

  • Provides mirror-like finishes in optical lenses, precision glass components, and semiconductor wafers.

Available Bond Types & Their Applications

• Resin Bond

  • Best for fine grinding, sharpening, and finishing operations.
  • Provides self-sharpening properties, reducing grinding forces and increasing efficiency.

• Metal Bond

  • Highly durable and wear-resistant, ideal for profile retention and heavy stock removal.
  • Commonly used for hard materials like carbide, ceramics, and glass.

• Vitrified Bond

  • Offers high porosity for better coolant flow, reducing thermal damage.
  • Preferred for cylindrical and surface grinding of hardened steels and superalloys.

• Electroplated Bond

  • Provides maximum abrasive exposure, allowing for high-speed precision grinding and intricate profile shaping.

Recommended Operating Parameters

• Grinding Speed – Typically 20–35 m/s, depending on bond type and workpiece material.
• Coolant Use – Strongly recommended (oil-based for carbide tool grinding, water-based for glass and ceramics) to maximize tool life and improve grinding efficiency.
• Feed Rate – Adjusted for high-precision, low-damage material removal.
• Dressing Requirements – Minimal dressing needed, thanks to the self-sharpening properties of superabrasive grains.

Conclusion

The 12A2-45 dish grinding wheel is a high-performance precision grinding tool designed for tool sharpening, relief grinding, and surface finishing applications. Its dish-shaped profile with a 45° angle allows for superior control, accuracy, and stability, making it an essential tool in CNC tool grinding, aerospace, automotive, and high-precision machining industries.

With its long-lasting cutting performance, high form retention, and ability to achieve ultra-smooth surface finishes, the 12A2-45 grinding wheel is the perfect choice for professionals seeking efficiency, durability, and precision in their grinding operations.