Centrifugal disc finishing is a type of mass finishing process used to improve the surface of various parts and components. It’s different from other methods like tumbling or vibratory finishing because it utilizes centrifugal force to achieve its effects.
Here’s how it works:
- Machine Setup: A centrifugal disc finisher typically has a cylindrical bowl with a rotating disc at the bottom. The disc spins rapidly, creating a vortex-like effect.
- Media and Parts: Inside the bowl, you add a combination of abrasive media (tiny pieces of ceramic, plastic, etc.) and the parts you want to finish.
- Centrifugal Action: As the disc spins, it propels the media and parts upwards along the bowl walls. This creates a high-energy environment where the media constantly rubs against the part surfaces.
- Deburring and Polishing: This rubbing action removes burrs, sharp edges, and imperfections from the parts. It can also polish and improve the overall surface texture.
- Separation and Cleaning: After the desired finishing time, the machine is stopped and the finished parts are separated from the media. Cleaning and drying may be necessary depending on the process and materials used.