Weld 113 Terms Quiz 3

air feed

A thermal spraying process variation in which an air stream carries the powdered surfacing material through the torch and into the heat source.

aligned discontinuities

A localized grouping of discontinuities forming an approximately linear pattern.

aligned porosity

A localized grouping of porosity forming an approximately linear pattern.

alloy

A substance with metallic properties and composed of two or more chemical elements of which at least one is a metal.

alloy flux, submerged arc welding

A flux containing ingredients to provide shielding and react with the weld pool to achieve a weld metal composition significantly different from the welding electrode, or to compensate for elemental losses during transfer across the arc or in the weld pool.

alloy powder

Powder prepared from a homogeneous molten alloy or from the solidification product of such an alloy.

angle of bevel

See bevel angle.

arc

See welding arc.

arc blow

The deflection of an arc from its normal path due to magnetic forces.

arc braze welding (ABW)

A braze welding process variation using an electric arc as the heat source.

arc chamber

A nonstandard term for plenum chamber.

arc cutter

See thermal cutter. See also oxygen cutting operator.

arc cutting (AC)

A group of thermal cutting processes severing or removing metal by melting with the heat of an arc between an electrode and the workpiece.

arc cutting gun

A device used to transfer electric current to a continuously fed cutting electrode, guide the electrode, and direct the shielding gas.

arc cutting operator

See thermal cutting operator. See also oxygen cutter.

arc cutting torch

See air carbon arc cutting torch, gas tungsten arc cutting torch, and plasma arc cutting torch.

arc energy

The product of welding amperage, voltage, and time interval.

arc force

The axial force developed by arc plasma.

arc gap

A nonstandard term when used for arc length.

arc gas

A nonstandard term when used for orifice gas.

arc gouging (AG)

Thermal gouging using an arc cutting process variation to form a bevel or groove.

arc length

The distance from the tip of the welding electrode to the adjacent surface of the weld pool.

arc oxygen cutting

A nonstandard term for oxygen arc cutting.

arc plasma

A gas heated by an arc to at least a partially ionized condition, enabling it to conduct an electric current.

arc seam weld

A seam weld made using an arc welding process.

arc seam weld size

See seam weld size.

arc spot weld

A spot weld made using an arc welding process.

arc spot weld size

See spot weld size.

arc sprayer

See thermal sprayer.

arc spraying (ASP)

A thermal spraying process using an arc between two consumable electrodes of surfacing materials as a heat source and a compressed gas to atomize and propel the surfacing material to the substrate.

arc spraying operator

See thermal spraying operator.

arc strike

A discontinuity resulting from an arc, consisting of any localized remelted metal, heat-affected metal, or change in the surface profile of any metal object.

arc stud welding (SW)

An arc welding process using an arc between a metal stud, or similar part, and the other workpiece. The process is used without filler metal, with or without shielding gas or flux, with or without partial shielding from a ceramic or graphite ferrule surrounding the stud, and with the application of pressure after the faying surfaces are sufficiently heated.

arc time

The time during which an arc is maintained in making an arc weld.

arc voltage, arc welding

The electrical potential between the electrode and workpiece.

arc welding (AW)

A group of welding processes producing coalescence of workpieces by melting them with an arc. The processes are used with or without the application of pressure and with or without filler metal.