Abrasive grain

The abrasive grain performs the actual cutting work. It penetrates the material and removes the chip. High hardness, toughness and sharp edges are the most important properties of the abrasive grain. The following synthetic abrasive grain materials are used for high-performance abrasives:

• Silicon carbide
• Aluminium oxide (corundum)
• Zirconia alumina
• ceramic grain
• Cubic boron nitride (CBN)
• Diamond

Typical problems concerning the abrasive grain:

• Wrong grain for the material
• Quick blunting
• Uneven stock removal

What needs to be kept in mind when choosing an abrasive grain?

• Choose grain type carefully
• Take the properties of the material into account
• Clearly define the grinding step