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Glossary
We try to explain the contents of all our areas of activity as simply as possible. Without any specialist terminology, nothing would make sense. To keep you on the ball we have created a comprehensive glossary in which the most important terms are explained in an easy-to-understand way. Simply click on the relevant letter, and up pop all the available explanations.
Just as innovations change the future, the glossary will also change over time. We are keen to constantly enhance this invaluable reference facility. If you are unable to find a particular term, please do not hesitate to let us know. We will make every effort to include it.
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When the electode is at the positve A.C. cycle (and the Aluminium workpiece is negative), the Aluminium oxide layer which retards joining is broken down. Additionally, the heat introduced into the Tungsten electrode can be controlled. Therefore, the current area (seam width) can be altered with the same tungsten diameter by changing the balance.