White Aluminum Oxide Polishing is a polishing technique that utilizes white aluminum oxide grains as the polishing agent. White aluminum oxide is a material made from industrial aluminum oxide powder, which is melted at high temperatures and then cooled, resulting in a dense and hard texture with angular particle shapes. It is suitable for manufacturing ceramics, resin-bonded abrasive tools, as well as for grinding, polishing, sandblasting, and precision casting applications. The main methods of white aluminum oxide polishing include:

1. Mechanical Polishing: A polishing method that removes the convex parts after polishing by plastic deformation of the material surface, resulting in a smooth surface. Generally, oilstone sticks, wool wheels, sandpaper, sand belts, and nylon wheels are used, with the polishing discs mainly operated manually.

2. Chemical Polishing: This process allows the surface micro-protrusions of materials to dissolve preferentially in a chemical medium over the concave parts, resulting in a smooth surface. The main advantage of this method is that it does not require cumbersome equipment, enabling the polishing of irregularly shaped workpieces and the simultaneous polishing of multiple workpieces, which is highly efficient.

3. Electrolytic Polishing: The basic principle is similar to chemical polishing, i.e., it smooths the surface by selectively dissolving the fine protruding parts of the material surface. Compared to chemical polishing, it can eliminate the effects of cathode reactions, and it is more effective.