11V9-70 tapered cup grinding wheel 100x40x10x3x20 A B2-01 100% AC4 D 151

The 11V9-70 cup grinding wheel is a specialized superabrasive tool designed for precision grinding, sharpening, and surface finishing in industrial applications. With its angled cup-shaped profile (V-shaped with a 70° angle), this grinding wheel is optimized for tool grinding, profile grinding, and relief grinding, ensuring superior edge retention, form stability, and consistent cutting performance.

Manufactured using diamond or cubic boron nitride (CBN) abrasives, the 11V9-70 wheel provides extended tool life, reduced grinding forces, and minimal heat generation, making it a preferred choice for high-precision grinding operations on CNC tool grinders, manual tool grinding machines, and automated sharpening systems.

Key Features & Benefits

• V-Shaped Cup Profile (70° Angle) for Precision Grinding

  • Designed for angled grinding applications, making it ideal for flute, relief, and end-face grinding of cutting tools.
  • The cup design improves stability, allowing for controlled material removal with minimal vibration.

• Optimized for Tool & Cutter Grinding

  • Ensures sharp cutting edges on tools such as carbide drills, end mills, and inserts.
  • Provides high-accuracy grinding of clearance angles and complex tool geometries.

• Extended Tool Life & High Cutting Efficiency

  • Available in diamond and CBN variants, ensuring superior wear resistance and minimal wheel dressing requirements.
  • Consistent grain exposure maintains cutting sharpness over prolonged usage.

• Reduced Grinding Temperatures & Improved Surface Finish

  • Efficient heat dissipation reduces thermal damage, burns, and microcracks in the workpiece.
  • Produces fine surface finishes with excellent dimensional control.

• Excellent Form Retention & Stability

  • The bond matrix ensures minimal wear, allowing for repeatable precision grinding.
  • Ideal for high-speed grinding operations requiring tight tolerances.

Material Compatibility

The 11V9-70 cup grinding wheel is designed for precision grinding of ultra-hard materials in cutting tool manufacturing, aerospace, and high-performance engineering applications.

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

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

CBN Bond (for Ferrous Materials & Hardened Steels)

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

Applications

• Flute & Relief Grinding in Tool & Cutter Manufacturing

  • Used in CNC and manual tool grinders for sharpening end mills, drills, and reamers.
  • Ensures sharp, consistent relief angles for extended tool life.

• Precision Surface Grinding & Profile Grinding

  • Ideal for contour grinding applications requiring high-accuracy shaping and finishing.
  • Used in aerospace and automotive part manufacturing for complex geometries.

• Mold & Die Finishing

  • Provides high-quality surface finishing and profile retention in mold and die grinding applications.

• Glass, Optical & Semiconductor Processing

  • Used in precision grinding of optical lenses and semiconductor wafers, ensuring chip-free, smooth surfaces.

Available Bond Types & Their Applications

• Resin Bond

  • Best suited for precision tool grinding and finishing.
  • Offers self-sharpening action, reducing grinding forces and enhancing tool longevity.

• Metal Bond

  • Highly durable and wear-resistant, making it ideal for profile retention in high-load applications.
  • Used for hard materials like carbide, ceramics, and glass.

• Vitrified Bond

  • Offers high thermal stability and controlled porosity, allowing for better coolant penetration and heat dissipation.
  • Ideal for cylindrical and surface grinding of hardened steels and superalloys.

• Electroplated Bond

  • Provides sharp cutting action and aggressive material removal, making it suitable for fast stock removal and fine finishing.

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 11V9-70 cup grinding wheel is a high-precision, high-performance tool designed for sharpening, relief grinding, and profile grinding applications. Its angled cup profile, advanced superabrasive composition, and superior heat dissipation make it an essential tool in CNC tool grinding, aerospace, automotive, and precision manufacturing industries.

With its long-lasting cutting performance, superior form retention, and ability to achieve ultra-smooth surface finishes, the 11V9-70 grinding wheel is the perfect choice for professionals requiring accuracy, durability, and high-efficiency grinding solutions.