Also known as a bonded abrasive, a grinding wheel is a bonded abrasive that solidifies ordinary abrasives into a certain shape (mostly circular with a through hole in the center) and has a certain strength. It is generally composed of abrasives, binders, and pores, which are often referred to as the three elements of bonded abrasives. According to different classifications of binders, common ones include ceramic (binder) grinding wheels, resin (binder) grinding wheels, and rubber (binder) grinding wheels. Grinding wheel is a type of grinding tool with a large amount of usage and a wide range of applications. It rotates at high speed during use and can perform rough grinding, semi precision grinding, precision grinding, slotting, and cutting on the outer circle, inner circle, plane, and various types of surfaces of metal or non-metal workpieces.

Grinding wheel is a major type of grinding tool in grinding processing. A grinding wheel is a porous body made by adding a binder to the abrasive, pressing, drying, and roasting. Due to differences in abrasives, binders, and manufacturing processes, the characteristics of grinding wheels vary greatly, which has a significant impact on the processing quality, productivity, and economy of grinding. The characteristics of grinding wheels are mainly determined by factors such as abrasive, particle size, binder, hardness, structure, shape, and size.

There are various types of grinding wheels. According to the abrasives used, grinding wheels can be divided into ordinary abrasives (such as corundum and silicon carbide), natural abrasives superhard abrasives, and grinding wheels (such as diamond and cubic boron nitride); According to shape, it can be divided into flat grinding wheels, bevel grinding wheels, cylindrical grinding wheels, cup shaped grinding wheels, disc shaped grinding wheels, etc; According to the bonding agent, it can be divided into ceramic grinding wheels, resin grinding wheels, rubber grinding wheels, metal grinding wheels, etc. The characteristic parameters of grinding wheels mainly include abrasive, particle size, hardness, binder, shape, size, etc. Due to the fact that grinding wheels usually work at high speeds, a rotation test (to ensure that the grinding wheel does not break at the working speed) and a static balance test (to prevent machine tool vibration during operation) should be conducted before use. After working for a period of time, the grinding wheel should be trimmed to restore grinding performance and correct geometric shape.