Welding Terms

Unit of measurement of electrical current.

• AMMPER

• AMPERE

• VOLT

• AMPERMETER

The flow of electrons through an electrical circuit.

(a)  

Fusion that has taken place over all the fusion faces and between all adjoining weld beads.

• partial fusion

• complete fusion

• fusion

base metal

• raw material

• brass

• iron

• metal to be welded, cut, or brazed

carbon steel

• Steel made by adding small controlled amounts of carbon to pure iron

• Metal to be welded, cut, or brazed.

The path of electron flow from the source through various components and back to the source:

(a)  

An electrode that is melted and becomes part of the weld:

• complete electrode

• consumable electrode

• electrode

The angle formed between the prepared edge of one piece and a plane perpendicular to the surface of that piece.

(a)  

Wandering of an electric arc from its normal path because of magnetic forces.

(a)  

A weld bead with a surface that curves outward (away from the root of the weld)

• concave bead

• convex bead