Which Should You Use To Polish Metal: Flap Disc Or Grinding Disc?
When it comes to polishing metal, both flap discs and grinding discs can be used, but they serve different purposes depending on the specific needs of the job.
1. Structure and shape: Flap discs are made up of multiple overlapping flaps of abrasive material that are arranged around a central hub. They typically have a flat shape or a slight contour and are available in various grit sizes. Grinding discs, on the other hand, are typically flat and thicker, with a single layer of abrasive grains bonded to a backing material.
2. Material removal and finishing: Grinding discs are primarily designed for material removal and are more aggressive in nature. They are used for grinding and smoothing down metal surfaces, removing stock, and shaping or beveling a workpiece. Flap discs, on the other hand, are more versatile and can be used for both material removal and finishing. They can provide a smoother finish and are commonly used for blending, edge deburring, and light to moderate grinding.
3. Tool compatibility: Both flap discs and grinding discs are designed to be used with angle grinders, which are the most common power tools for metalworking. They can be fitted onto the angle grinder's spindle using a backing or flange nut.
4. Considerations: The choice between flap discs and grinding discs ultimately depends on the specific metal polishing task at hand. If you need to remove a significant amount of material or perform heavy grinding, a grinding disc with a coarser grit can be more efficient. If you require a smoother finish or need to blend surfaces, a flap disc with a finer grit is a better choice.
In summary, grinding discs are more suitable for heavy material removal, while flap discs offer more versatility and can be used for both material removal and finishing. Consider the desired results, the amount of material to be removed, and the level of surface finish required when deciding between flap discs and grinding discs for metal polishing.
