Page 26 - CITS - Welder - Trade Theory

WELDER - CITS

4 TIG WELDING - In this case the arc is formed between the tungsten electrode and the welding job in an
atmosphere of an inert gas (argon or helium). A separate filler rod is used to add the filler rod.

Application – ferrous &nonferrous metal welding

5 Submerged arc welding (SAW) -In this process Arc is formed between a continuous , automatically fed,
metallic consumable electrode and the welding job under a heap of powdered /granulated flux. The arc is
totally invisible submerged in the flux.
Application – Ferrous metal thicker plates welding

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CITS : C G & M - Welder - Lesson 4&5 CITS : C G & M - Welder - Lesson 4&5