What are the principles for choosing the hardness of the grinding wheel?

The selection of grinding wheel is an important part of the abrasive industry. A good grinding wheel should have good sharpness and hardness. Therefore, when choosing a grinding wheel, it is reminded that you need to consider the types of abrasives, particle size, abrasive bonding, and abrasive organization.
There are two types of traditional abrasive particles: aluminum oxide or silicon carbide;
There are also two types of non-traditional abrasive grains: diamond or cubic boron nitride.
The size of the abrasive is called the grain size. The larger the number of abrasive grains, the finer the grain size. Fine abrasive grains are suitable for fine grinding operations or grinding of brittle and hard materials, while coarse abrasive grains are suitable for rough grinding operations or grinding of soft and tough materials. grinding.
The principle of soft and hard grinding wheel selection: soft grinding wheels are suitable for grinding hard materials or large-area workpieces, while hard grinding wheels are suitable for grinding soft materials or small-area workpieces.
The combination of abrasive grains and abrasive grains is the manufacturing method of the grinding wheel. The materials commonly used in the industry as the method of combining abrasive grains include clay method, water glass method, resin method, metal method, shellac method, and rubber method.