What is defined as a "weld bead" in the context of GMAW?

A "weld bead" refers to the continuous line of molten material that is deposited during the welding process. In GMAW, this occurs as the filler material from the welding wire melds with the base metal and solidifies, forming a coherent joint between the pieces being welded. The quality of the weld bead can greatly impact the strength and integrity of the weld, making its proper formation crucial in any welding operation.

In the context of GMAW, the deposited material takes on unique characteristics based on factors such as the welding parameters used, the angle of the torch, and the speed of movement. Understanding the properties and appearance of a weld bead helps welders to assess their performance and make necessary adjustments to their techniques.