Term Quiz 14

dwell time, welding

The time during which the energy source pauses at any point in each oscillation.

dynamic electrode force, resistance welding

The actual force applied to the workpieces by the electrodes during welding.

edge effect, thermal spraying

Loosening of the bond between the thermal spray deposit and the substrate at the edge of the thermal spray deposit.

edge loss, thermal spraying

Thermal spray deposit lost as overspray beyond the edge of the workpiece.

edge preparation

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

edge shape

The shape of the edge of the joint member.

edge weld

A weld in a flanged butt, flanged corner, or parallel joint in which the full thicknesses of the workpiece ends are fused.

edge weld size

The weld metal thickness measured from the weld root.

effective throat

The minimum distance from the fillet weld face, minus any convexity, and the weld root.

electrode

A component of the welding circuit terminating at the arc, molten conductive slag, or base metal.

electrode adapter, resistance welding

A device used to attach an electrode or electrode cap to an electrode holder.

electrode cap

A replaceable electrode adapter tip used for resistance spot welding.

electrode cap extractor

A tool used to facilitate removal of an electrode cap from an electrode adapter or electrode holder.

electrode extension, carbon arc cutting and carbon arc gouging

The length of electrode extending beyond the electrode holder or cutting torch.

electrode extension, flux cored arc welding, electrogas welding, gas metal arc welding, and submerged arc welding

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

electrode extension, gas tungsten arc welding and plasma arc welding

The length of tungsten electrode extending beyond the end of the collet.

electrode face, resistance welding

The surface of a resistance welding electrode contacting the workpiece.

electrode force, resistance welding

The force applied by the electrodes to the workpieces in making spot, seam, or projection welds.

electrode holder

A device used for mechanically holding and conducting current to an electrode or electrode adapter.

electrode indentation, resistance welding

A depression formed on the surface of the workpiece by an electrode.

electrode lead

A secondary circuit conductor transmitting energy from the power source to the electrode holder, gun, or torch.

electrode life, resistance welding

The endurance of a welding electrode between initial use and required servicing or replacement.

electrode mushrooming, resistance welding

The enlargement of the electrode face due to the heat and pressure of welding.

electrode pickup, resistance welding

Contamination of the electrode by the base metal or its coating during welding.

electrode setback

The distance the electrode is recessed behind the constricting orifice of the plasma arc torch or thermal spraying gun, measured from the outer face of the constricting nozzle.