What is another name for a box weld?

A box weld is often referred to as an all-around weld because it is a continuous welding joint created around the perimeter of a component, typically in a square or rectangular shape. This type of weld is designed to provide strength by enclosing the edges of two pieces being joined, ensuring that the joint can effectively resist various forces and stresses.

The term "all-around" aptly describes the nature of the weld, as it completes a full circle around the joint, connecting all sides. This is particularly important in applications where the weld needs to ensure structural integrity and tight seals, such as in the construction of boxes or frames.

In contrast, the other options refer to specific types of welds that serve different purposes. A thickness weld may relate to the penetration or depth of a weld but is not synonymous with a box weld. An edge weld generally involves joining the edges of two pieces without encompassing the full perimeter, and a fillet weld is specifically a type of weld that is triangular in cross-section, used to join two surfaces at a right angle.