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Welding Terms and Definitions Dictionary

 -  A relatively thick layer (> 1 mm (0.04 in.)) of material applied by surfacing of the purpose of improved corrosion resistance or other properties. Cladding Systems
Scratch Start TIG
 -  A common method of striking an arc in the TIG welding process which involves dragging the tungsten electrode across the surface of the metal. Not the cleanest method of starting a TIG weld. Stick welders can be converted to use for scratch TIG with the addition of an air cooled TIG torch and argon gas.
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