The advantages of CBN grinding wheel:

The high temperature stability of cubic boron nitride abrasive and the chemical inertness of ferrous and titanium group ferrous metals make it the most ideal material for processing difficult-to-grind ferrous metals. The grinding wheel produced with cubic boron nitride has excellent grinding performance and has the following advantages:

       One. The elastic modulus of the grinding wheel is large, the thermal expansion is small, the toughness is good, the deformation of the grinding wheel is small, the shape retention is good, and the processed parts with precise dimensions and good surface finish can be obtained.

       two. The grinding wheel has a porous internal structure, and the bonding agent has a strong holding force on CBN. During grinding, the cutting is sharp and the grinding force is small. The grinding wheel maintains a high grinding efficiency and avoids burns and micro-cracks on the surface of the workpiece. The surface of the workpiece is in a state of compressive stress, which improves the compressive and fatigue resistance of the workpiece, and the durability of the workpiece is therefore increased by 10%-30%.

       three. After the grinding wheel is sintered at a high temperature, chemical bonding occurs between the CBN abrasive grains and the bonding agent and auxiliary abrasive grains. The CBN has a strong holding power, so the grinding wheel has an extremely long service life, and the durability is 100-200 times that of the corundum grinding wheel.

       four. The grinding wheel has high strength, good impact resistance, high strength of the segments, and the soft elastic layer at the joints of the segments is beneficial to the elimination of grinding stress and grinding heat, so that the grinding wheel can adapt to high-speed grinding.

1. Good thermal stability. Its heat resistance (1250-1350°C) is higher than that of diamond grinding wheels (800°C). When sparks occur during grinding, it can still maintain its excellent grinding performance.

2. Strong chemical inertness. It is not easy to produce chemical reaction with iron group elements. Therefore, it is suitable for grinding all kinds of high-speed steel, tool steel, high-alloy hardened steel, chromium steel, nickel alloy, powder metallurgy steel and high-temperature alloy materials with high high-temperature hardness and low thermal conductivity.

3. The CBN grinding wheel has a long life and can maintain its good cutting performance during the entire cutting process, so it is beneficial to realize processing automation.

4. The grinding efficiency is high, and the linear speed of the grinding wheel is preferably 30m/s-50m/s and above.

5. The quality of the processed surface is good, and the durability of the workpiece is improved. Because the CBN wheel has sharp cutting and small grinding force when grinding, the grinding can obtain higher dimensional accuracy and lower surface roughness, the machined surface is not prone to cracks and burns, and the residual stress is small, which improves the compressive resistance of the workpiece The fatigue strength and the durability of the workpiece are therefore increased by 10%-30%. The elastic modulus of the grinding wheel is large, the thermal expansion is small, the toughness is good, the deformation of the grinding wheel is small, the shape retention is good, and the processed parts with precise dimensions and good surface finish can be obtained.

6. Low processing cost. Although CBN grinding wheels are more expensive than ordinary grinding wheels, they have the advantages of high processing efficiency, good surface quality, long life, easy to control dimensional accuracy, less auxiliary man-hours, and low scrap rate, so the overall cost is very low.

7. CBN grinding wheels are not suitable for grinding hard alloys and non-metallic hard materials. At high grinding temperatures, CBN abrasive grains will undergo a chemical reaction with alkaline aqueous solution, and the result of the reaction will destroy the crystal shape of the abrasive grains. Therefore, when grinding CBN wheels, only oil-based coolant can be used instead of water-based coolant.