A device which is located on the very front of a mechanized torch. Its purpose is to provide electrical isolation from the nozzle during piercing and cutting operations. In addition, it provides the path in which the shield gas impinges the arc at the exit orifice of the heat shield.
glossary
glossary
A cast iron with 2%-4% carbon, in which the carbon is mostly in the form of graphite. Groove Angle
A weld made in a groove between two members. Examples: single V, single U, single J, double bevel etc.
The name sometimes used for austenitic manganese steel derived from its inventor.
The metal used most commonly for the electrode emitter for air or oxygen plasma gases.