Who is correct regarding the grinding of welds in a patch panel before filler application?

Grinding of welds in a patch panel is an essential step that prepares the surface for filler application. When welds are ground down effectively, it creates a smooth and even surface, which is crucial for achieving a strong bond with the filler material. This process helps eliminate any high spots that may interfere with the adhesion and can also remove any slag or oxidation that can lead to poor filler application. Properly ground welds ensure that the filler can lie flat and create a seamless transition between the patch panel and the surrounding area, which is important for both aesthetic and structural integrity.

The importance of grinding the welds aligns with best practices in auto body repair, where attention to detail significantly affects the final results. Achieving a smooth surface also aids in the finishing processes, such as sanding and painting, leading to a more visually appealing outcome. It prepares the weld area to effectively accept subsequent treatments and finishes, which is key to a professional repair job.