Case of 6A9 CBN grinding wheel for punch grinder

n precision machining, the efficiency and accuracy of punch grinding are paramount. The integration of a CBN grinding wheel for punch grinders significantly enhances the performance of machines like the SV METAL ANB-5E, ensuring superior results in tool and die manufacturing.

Understanding Punch Grinding Machines

Punch grinding machines are specialized equipment designed to sharpen and recondition punches and dies used in sheet metal fabrication. These machines restore the cutting edges of tools, maintaining their precision and extending their service life. Regular maintenance of punches and dies is crucial to ensure consistent quality in metal forming processes and to prevent costly downtime due to tool wear or failure.

The SV METAL ANB-5E Punch Grinding Machine

The SV METAL ANB-5E is a state-of-the-art punch grinding machine renowned for its precision and user-friendly design. Key features include:

• Maximum Die Diameter: Capable of accommodating dies up to 158 mm in diameter, making it versatile for various tooling sizes.

• Punch Height Capacity: Supports punch heights up to 208 mm, allowing for a wide range of punch sizes.

• High-Speed Grinding Spindle: Equipped with a spindle operating at 4200 rpm, facilitating efficient material removal and fine surface finishes.

• Robust Cooling System: An integrated cooling system minimizes thermal deformation, preserving the integrity of both the tool and the machine.

• Compact Design: With dimensions of 550 mm (width) x 500 mm (depth) x 1010 mm (height) and a weight of 146 kg, the ANB-5E is suitable for various workshop environments without occupying excessive space.

These features collectively make the SV METAL ANB-5E an excellent choice for tool rooms and manufacturing units focused on maintaining high precision in their punching tools.

The Role of 6A9 CBN Grinding Wheels

The grinding wheel is a critical component in the punch grinding process. The 6A9 CBN (Cubic Boron Nitride) grinding wheel is specifically engineered for high-performance grinding applications. Its unique properties include:

• Superior Hardness: CBN is second only to diamond in hardness, making it ideal for grinding hard ferrous materials without excessive wheel wear.

• Thermal Stability: CBN maintains its hardness at high temperatures, reducing the risk of thermal damage to the workpiece.

• Enhanced Surface Finish: The fine cutting action of CBN grains results in a smoother surface finish, reducing the need for additional polishing.

• Extended Wheel Life: The durability of CBN extends the service life of the grinding wheel, leading to fewer wheel changes and increased productivity.

The 6A9 wheel shape is characterized by its straight cup design, which is particularly effective for grinding the end faces of tools and punches, ensuring precise geometry and sharpness.

Compatibility with SV METAL ANB-5E

For optimal performance on the SV METAL ANB-5E, the 6A9 CBN grinding wheel with a diameter of 125 mm and a bore (hole) size of 32 mm is recommended. This specification aligns with the machine’s design parameters, ensuring a secure fit and efficient grinding operation. The selection of the appropriate wheel dimensions is crucial to maintain balance and prevent vibrations during high-speed rotations.

Customer Inquiry: Diameter 125 mm and Hole 32 mm CBN Grinding Wheel

A recent customer inquiry highlighted the need for a 6A9 CBN grinding wheel with a 125 mm diameter and a 32 mm bore. This specification is ideal for the SV METAL ANB-5E punch grinding machine, offering the following benefits:

• Precision Fit: Ensures compatibility with the machine’s spindle, promoting stability during operation.

• Optimal Performance: The size allows for adequate surface contact with the workpiece, enhancing grinding efficiency.

• Versatility: Suitable for a range of punch and die sizes within the machine’s capacity.

Selecting the correct wheel size is essential to achieve the desired balance between material removal rate and surface finish quality.

Advantages of Using CBN Grinding Wheels for Punch Grinding

Integrating CBN grinding wheels into punch grinding processes offers several advantages:

• Increased Productivity: The high material removal rate of CBN wheels reduces grinding time, leading to faster turnaround.

• Cost Efficiency: Extended wheel life and reduced need for frequent replacements lower operational costs.

• Consistency: CBN wheels maintain their shape and cutting efficiency over time, ensuring uniform quality across batches.

• Reduced Heat Generation: Efficient cutting action minimizes heat buildup, preserving the metallurgical properties of the workpiece.

Conclusion

The combination of the SV METAL ANB-5E punch grinding machine and the 6A9 CBN grinding wheel represents a powerful solution for precision tool maintenance. This synergy ensures that punches and dies are sharpened to the highest standards, enhancing the quality and efficiency of metal forming operations. Manufacturers can optimize their grinding processes by selecting the appropriate wheel specifications, such as the 125 mm diameter and 32 mm bore, leading to prolonged tool life and consistent production quality.