Weld - the joint part of a welded piece

Weld pass -- a single weld formed by each deposition

The weld is the portion of the base material that is piled high or filled on or between the base materials.Most welding seams with large groove need several layers to form, and each layer is composed of several welds. For example, a certain layer is composed of three welds, that is, three welding passes.

Weld bead refers to the number of specific welds in one layer.If the workpiece is thin, only one layer is required, that is, a single layer and a single channel weld.