| ABB Group |
ABB is a leader in power and automation technologies that enable utility and industry customers to improve performance while lowering environmental impact. The ABB Group of companies operates in around 100 countries and employs about 120,000 people – www.abb.com
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| Acetylene |
A highly combustible gas composed of carbon and hydrogen. Used as a fuel gas in the oxy acetylene welding process.
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| Air-arc cutting |
Thermal cutting using an arc for melting the metal and a stream of air to remove the molten metal to enable a cut to be made.
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| AISC |
American Institute of Steel Construction. - www.aisc.com
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| All-weld test specimen |
A test specimen that is composed wholly of weld metal over the portion to be tested.
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| ANSI |
American National Standards Institute. - www.ansi.com
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| Anti-spatter fluid (Also known as: antis |
Prevents spatter build up. Products are available in fluid, tip dips, gels, spray bottles and aerosol cans. - www.spattershield.com
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| Applied Welding |
Applied Welding - www.appliedwelding.com
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| Arc length |
The distance between the tip of the electrode and the weld puddle.
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| Arc Strikes |
Striking an arc on base metal that not be fused into the weld metal should be avoided. A small volume of base metal may be momentarily melted when the arc is initiated. The molten metal may crack from quenching, or a small surface pore may form in the solidified metal. These discontinuities may lead to extensive cracking in service. Any cracks or blemishes caused by arc strikes should be ground to a smooth contour and reinspected for soundness.
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| Arc voltage |
The voltage between electrodes or between an electrode and the work, measured at a point as near as practical to the work.
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| Arc welding |
A group of welding processes in which fusion is obtained by heating with an electric arc or arcs, with or without the use of filler metal.
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| Arc Welding Robots and Welding Power Sou |
KOBELCO - www.kobelco.co.jp
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| Argon |
An extremely unreactive colourless odourless element of the rare gas series that forms almost 1 per cent (by volume) of the atmosphere.
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| As welded |
The condition of weld metal prior to any mechanical treatment.
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Glossary
