Very Important Element in Piping System

If we talk about Piping and Fabrication, we can't forget the thing called Weld, Welding and Welder, they are very important element in Piping System (Pipe), so here it is.

Weave Bead.

weave bead weld

A type of weld bead made with oscillation of the electrode transverse to the axis of the weld. Contrast to string bead.

Weld.

welding

A localized coalescence of material produced either by heating to suitable temperatures, with or without the application of pressure, or by application of pressure alone, with or without the use of filler material.

Weld Bead.
A weld deposit resulting from a pass.

Weld Metal.
That portion of a weld which has been melted during welding. The portion may be the filler metal or base metal or both.

Weld Metal Area.
The area of the weld metal as measured on the cross section of a weld.

Weld Penetration.
See Joint Penetration and Root Penetration.

Weld-Prober Sawing.
Removal of a boat-shaped sample from a pipe weld for examination of the weld and its adjacent base-metal area. This operation is usually performed in graphitization studies.

Weld Reinforcement.

weld reinforcement

Weld material in excess of the specified weld size.



Weld ability.
The ability of a metal to be welded under the fabrication conditions imposed into a specific, suitably designed structure and to perform satisfactorily in the intended service.

Welded Joint.
A localized union of two or more members produced by the application of a welding process.

Welder.
One who is capable of performing a manual or semiautomatic welding operation.

Welder Performance Qualification.

Welder Performance Qualification

Demonstration of a welder’s ability to produce welds in a manner described in a welding procedure specification that meets prescribed standards.

Welding Current.
The current which flows through the electric welding circuit during the making of a weld.