Tuesday 28 February 2012

Glossary

Throughout the course of my blogging career I will be adding more and more to this glossary so if you have any ideas please feel free to comment and I will add them.


AC = Alternating Current


Amps = The measurement of the electrical (current) flow.


Arc Blow = A magnetic field that deflects the arc to one side caused by a DC circuit. 

AWS = American Welding Society


CFH = Cubic Feet per Hour


CGA = Compressed Gas Association

CSA = Canadian Standards Association 

CWB = Canadian Welding Bureau 


Constant Current (CC) =  a machine that varies its output voltage to maintain a steady current. 


Constant Potential/Voltage (CP/CV) = a machine that will fluctuate its output current to maintain a set voltage. 

DCEN = Direct Current Electrode Negative


DCEP = Direct Current Electrode Positive (Creates a cleaning action with TIG)


Down Slope = The control of the ending amperage at the moment the arc is extinguished opposed to the set amperage for welding.


GMAW = Gas Metal Arc Welding 


GTAW = Gas Tungsten Arc Welding 


High Frequency (HF) = The ionization of gas between the electrode and workpiece creating an arc.


Inductance = The rate of current rise.

Inert Gas = A gas that has little or no ability to react chemically.


L/min = Litres per minute.


MIG = Metal Inert Gas


Ohm = The measurement of resistance in an electrical conductor.


Ohm's Law = E = I x R (Voltage=Current in amps x Resistance in ohms) 


Pre-Purge (Pre-Flow) = The flow of gas before the arc is struck. 


Post-Purge (Post-Flow) = The flow of gas after the arc is extinguished. 


Resistance = The force that prevents the flow of electricity. (Wire size, electrical conductors, etc.)


Reverse Polarity = DCEP


SAW = Submerged Arc Welding


Single-Phase = An AC current different in phase by 180ยบ


SMAW = Shielded Metal Arc Welding


Stick Welding = Sometimes called Arc welding. With a flux coated stick electrode. 

Straight Polarity = DCEN


Three-Phase = An AC current with 3 single-phase currents timed to start at regular intervals from each other.


TIG = Tungsten Inert Gas


Up Slope = The control of the starting amperage at the moment the arc is ignited opposed to the set amperage for welding.

Volts = Electrical pressure








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