A head in welding refers to the portion of the weld bead that is deposited in a single pass or sequence. It is an essential element in the welding process, as it determines the strength, quality, and appearance of the weld joint.
The head is formed by the molten metal from the electrode or filler material flowing into the joint and solidifying. It is crucial to maintain a consistent head size and shape throughout the welding process to ensure a proper fusion and avoid defects such as cracks, porosity, and lack of penetration.
With proper training, techniques, and equipment, anyone can master the art of welding and produce high-quality welds with a perfect head.