What characteristic of the globular transfer mode affects weld appearance?

In the globular transfer mode, the molten metal forms large droplets that are transferred across the arc to the workpiece. This mode is characterized by a higher level of spatter compared to other transfer modes, such as short-circuiting or spray transfer. The large droplets, while providing metal to the weld puddle, do not always make it to the joint cleanly; some droplets tend to scatter away from the intended path.

This increased spatter can result in a less desirable weld appearance, with visible excess material and unevenness on the surface. The presence of spatter can create a rougher finish by introducing additional cleanup work, such as grinding or sanding down the weld after it has cooled. Therefore, the characteristic of globular transfer that significantly affects weld appearance is the tendency to increase spatter, leading to a less refined and more chaotic look in the final weld.