A Words
B words
C Words
More C words
D Words
100
alternating current (AC)
An electrical current that reverses its direction at regular intervals of time. In the United States, this interval time is 60 times per second or 60 Hz. In other countries, this frequency is 50 Hz.
100
back bead
A weld bead resulting from a back weld.
100
chamfer
A non-standard term for bevel.
100
complete joint penetration
Penetration by the weld metal for the full thickness of the base metal in a joint with a groove weld.
100
defect
A discontinuity or discontinuities that by nature or accumulated effect render a part or product unable to meet minimum applicable acceptance standards or specifications. This term designates rejectability.
200
amperage
The measurement of the amount of electricity flowing past a given point in a conductor per second. Amperage is the unit of measure of current. Amperage is the variable that controls deposition rates and penetration in arc welding. In wire feed welding, amperage is determined through wire feed speed for a given wire type and diameter
200
back gouging
The removal of weld metal and base metal from the other side of a partially welded joint to facilitate complete fusion and complete joint penetrations upon subsequent welding from that side.
200
circuit
The path that electrical current takes, either from the work through the welding power supply through the electrode or vice-versa.
200
concave fillet weld
A fillet weld having a concave face.
200
defective weld
A weld containing one or more defects.
300
arc blow
The deflection of an electric arc from its normal path because of magnetic forces. Arc blow is generally only a concern in DC (Direct Current) welding.
300
backhand welding
A welding technique in which the welding torch or gun is directed opposite to the progress of weld. Backhand welding is also referred to as dragging the electrode or down-hand welding.
300
cold lap
Lack of fusion that is the result of applying too cold of a weld to too thick of a plate. This condition is generally only a problem in short arc GMAW welding. Sometimes called incomplete fusion.
300
concavity
The maximum distance from the face of a concave fillet weld perpendicular to a line joining the weld toes. (The depth of the concave face of the weld.)
300
deposited metal
Filler metal that has been added during welding.
400
arc length
The distance between the end of the welding electrode to the work piece. In constant voltage welding, arc length determines arc voltage.
400
bevel angle
The angle formed between the prepared edge of a member and a plane perpendicular to the surface of the member.
400
cold crack
A crack that develops after weld solidification is complete.
400
conductor
A device that carries current. Most metals are very good conductors.
400
deposition efficiency
The ratio of the weight of deposited metal to the net weight of filler metal consumed, exclusive of stubs.
500
arc welding electrode
A component of the welding circuit through which current is conducted.
500
burnback
Melting of the electrode towards the contact tip after completing a weld. This parameter is usually set at the wire feeder and aids in preventing the wire from sticking in the crater, and allows for a consistent electrical stickout from weld to weld.
500
complete fusion
A condition in which fusion has occurred over the entire base metal surfaces intended for welding and between all adjoining weld beads.
500
constant current welding machine
A welding machine that maintains a near-constant pre-set current even for changes in voltage that occur from changes in arc length. The output curve of a constant current (C.C.) machine are sometimes called “drooper curves”, and these machines are sometimes called variable voltage machines. C.C. machines are used primarily for SMAW, GTAW, and some SAW welding.
500
deposition rate
The weight of material deposited in a unit of time.
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