What happens if the radius of a rivet set is too large?

When the radius of a rivet set is too large, it can lead to damage of the surrounding sheet metal during the riveting process. A rivet set with an excessive radius can produce a greater surface area contact than what is optimal, increasing the risk of deformation in the material being riveted. This deformation can weaken the integrity of the sheet metal, causing it to buckle or warp under the pressure applied during the riveting. Additionally, the larger radius may not create a snug fit with the rivet head, exacerbating the risk of unwanted stress concentrations at the joint interface. Thus, using a rivet set with an appropriate radius is crucial for preserving the integrity of the materials being joined.