A discontinuity or discontinuities that by nature or accumulated effected (for example total crack length) render a part or product unable to meet minimum applicable acceptance standards or specifications. The term designates rejectability.

Filler metal that has been added during welding, brazing or soldering.

The weight of material deposited in a unit of time.

The perpendicular distance from the base metal surface to the root edge or the beginning of the root face.

The distance that fusion extends into the base metal or previous bead from the surface melted during welding.

The change in chemical composition of a welding filler metal caused by the admixture of the base metal or previous weld metal in the weld bead. It is measured by the percentage of base metal or previous weld metal in the weld bead.

An interruption of the typical structure of a material, such as a lack of homogeneity in its mechanical, metallurgical, or physical characteristics. A discontinuity is not necessarily a defect.

Welding with a downward progression.

The travel angle when the electrode is pointing in a direction opposite to the progression of welding. This angle can also be used to partially define the position of guns, torches, rods, and beams.

The preparation of the edges of the joint members, by cutting, cleaning, plating or other means.

The minimum distance minus any convexity between the weld root and the face of a fillet weld.

A component of the electrical circuit that terminates at the arc, molten conductive slag, or base metal.

The length of electrode extending beyond the end of the contact tube.

A device used for mechanically holding and conducting current to an electrode during welding or cutting.