New York Low Pressure Boiler COF Practice

What tool is commonly used to finish a weld after adding filler metal?

1. Wire wheel

2. Grinding stone

3. Sandpaper

4. File

The correct answer is: Wire wheel

The most appropriate tool for finishing a weld after adding filler metal is a wire wheel. A wire wheel is designed to remove slag, spatter, and other impurities from the weld area, providing a clean surface and promoting better aesthetics as well as potentially enhancing the quality of the weld. The bristles of the wire wheel can reach into crevices and remove any leftover debris that can compromise the integrity of the welded joint. While other tools, such as a grinding stone, sandpaper, or a file, can be used for finishing welds, they each have their specific applications and limitations. A grinding stone is typically more aggressive and may risk removing too much material or changing the shape of the weld. Sandpaper is effective for finishing and polishing but may not be as efficient in clearing away heavier debris as a wire wheel. A file can be used for fine detailing, but it is not as effective for cleaning as a wire wheel, especially in the context of welding. Thus, the wire wheel is widely regarded as the best choice for effectively finishing a weld after filler material has been applied.