What Are Cutting Discs Composed Of?

Cutting discs are generally composed of three parts: abrasive, binder and reinforcement material. The combination of different materials determines the performance and application range of the cutting disc.

Abrasive includes Standard Aluminum Oxide(A), White Aluminum Oxide(WA), Silicon Carbide(C), Zirconia(ZA) and Ceramic Abrasive(CA):

        Standard Aluminum Oxide (A): Medium hardness, high toughness, sharp particles. Suitable for cutting carbon steel and alloy steel.

         White Aluminum Oxide(WA): Its hardness is slightly higher than that of brown corundum, but its toughness is poorer. It is easy to cut into the workpiece during grinding, has good self-sharpening properties, generates less heat, has strong grinding ability and high efficiency.

         Silicon Carbide (C): High hardness, high brittleness, sharp abrasive particles, good thermal conductivity, strong wear resistance. Suitable for cutting cast iron, aluminum, copper, brass and other non-ferrous metals.

         Zirconia (ZA): High hardness, close to the hardness of diamond, high density, high grinding efficiency and grinding accuracy, good compression resistance, not easy to break, long service life, good chemical stability. Suitable for cutting stainless steel, high alloy steel and armor steel.

         Ceramic Abrasive: Has extremely high wear resistance. Suitable for high precision cutting.

Binder is used to bond the abrasive particles together to form the overall structure of the cutting disc. Common binders are:

        Resin: Has certain elasticity and heat resistance, suitable for high-speed cutting.

         Metal: Provides greater strength and rigidity, suitable for heavy cutting.

         Ceramic: Resistant to high temperatures, suitable for high-precision and high-strength cutting.

Reinforcement materials are used to increase the strength and durability of the cutting disc. Common reinforcement materials include fiberglass and wire mesh.