Arc welding produces:

Arc welding is a process that involves using an electric arc to generate heat, which in turn melts the metals being joined together. The formation of a puddle of molten metal at the electrode tip is a key characteristic of this welding method. When the electric arc is established between the electrode and the workpiece, temperatures can reach high enough to melt both the electrode and the base metals in the weld joint area. This molten metal forms a weld pool, which is essential for creating a strong bond between the metals once it cools and solidifies.

The process is critical for achieving successful welds, as the molten puddle allows for proper fusing of the metal surfaces. This interaction is what ultimately determines the quality and integrity of the weld.