What type of grinding wheel is typically used for metallographic cutting and what is its composition?

Abrasive wheels are generally used for metallographic cutting, and these wheels usually use aluminum oxide or silicon carbide as the primary abrasive grain material.
Aluminum oxide abrasive wheels have good wear resistance and self-sharpening properties, making them suitable for cutting metal materials with moderate hardness, such as common carbon steel and alloy steel. During the cutting process, they can maintain good cutting performance, are not easily worn, and can automatically shed passivated grains to reveal new sharp grains, continuing effective cutting.
Silicon carbide abrasive wheels have higher hardness and are more suitable for cutting materials with greater hardness, such as cemented carbides and ceramics. Their cutting efficiency is high, but relatively speaking, their toughness is poorer. The bonding materials within the abrasive wheels are typically resin and rubber.
Resin binders have good elasticity and toughness, enabling the abrasive wheel to better adapt to the workpiece surface during cutting, reducing vibration and improving cutting precision; rubber binders have better water resistance and corrosion resistance, which can enhance the durability of the abrasive wheel.

Kunshan Fuze Testing Equipment Co., Ltd. provides abrasive wheels of various materials, allowing the selection of the appropriate abrasive wheel based on different materials.