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Weld Crack

A crack located in the weld metal or heat-affected zone.

Weld Metal

The portion of a fusion weld that has been completely melted during welding.

Weld Pool

The localized volume of molten metal in a weld prior to its solidification as weld metal.

Weldability

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

Welding

A joining process that produces merging of materials by heating them to the welding temperature, with or without the application of pressure or by the application of pressure alone, and with or without the use of filler material.

Welding Arc

A controlled electrical discharge between the electrode and the work piece that is formed and sustained by the establishment of a gaseous, conductive medium.

Welding Filler Metal

The metal or alloy added in making a weld joint that alloys with the base metal to form weld metal in a fusion-welded joint.

Welding Rod

A form of welding filler metal, normally packaged in straight lengths, that does not conduct the welding current.

Welding Tip

That part of an oxyfuel gas welding torch from which the gases issue.

Weldment

An assembly of two or more metal parts that have been joined by fusing metal with the application of heat.

Western Union Splice

The electrical connection made by paralleling the bared ends of two conductors and then twisting these bared ends, each around the other.

Wet Bulb

A device, such as a thermometer, having a wet sock over its sensing element.

Wet Compression Test

A test of the engines compression with two table spoons of oil added to the cylinder to determine if the low compression from the initial compressiontest is caused by leaking pistion rings, leaking valves, or from a hole in the head gasket or pistion.

Wet Compression Testing

A test of the engines compression pressure with two tablespoons of engine oil added through the spark plug hole to seal the rings and determine if the compression leak is from the rings or the valves.

Wet Liner

A cylinder liner that is in contact with the coolant.

Wet Sleeve

A term used for wet liner.

Wet Tank

A supply reservoir.

Wet-Bulb Temperature

The ambient temperature measured with a wet-bulb thermometer.

Wet-Disk Clutch

A clutch having a friction disk that operates in a bath of oil.

Whale Tale

A large, horizontal spoiler at the rear of a vehicle.