document certifying that the welder has made his welds according to the standards prescribed.
Arc Voltage
the voltage that runs along the welding arc.
Helmet
protection equipment worn to protect the welder’s face and neck.
Cutting torch
tool used in gas cutting to control the gases that are used for preheating and cutting metal.
Weld
a point where metals have been fused together by heating the materials to a suitable temperature. Filler metals or pressure may be used to accomplish the weld.
Goggles
Safety glasses
Tempering
process of reheating hardened steel below the lowest critical temperature and then allowing it to cool to make the steel stronger.
Base metal
the metal material that will be welded or cut.
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