In what situation is a more powerful rivet gun typically required?

A more powerful rivet gun is required for larger diameter rivets because of the increased force needed to properly set and compress these rivets. As the diameter of the rivet increases, the amount of material being deformed increases as well, which requires more power to ensure that the rivet is adequately fastened and does not fail under load. The larger the rivet, the greater the amount of energy needed to drive it into the material and achieve the necessary deformation for a secure joint.

In contrast, for aluminum materials, softer metals, or decorative purposes, the requirements for power are generally less demanding. Aluminum and soft metals often require less force because they are more malleable, allowing for easier rivet installation without the need for a powerful tool. Decorative applications may also prioritize aesthetic considerations over the mechanical strength typically associated with structural joining, further mitigating the need for a heavy-duty rivet gun.