12 Questions
What is the primary material used to make the electrode in the tungsten inert gas welding process?
Tungsten
Why is the tungsten inert gas welding process necessary for welding reactive metals and alloys?
To prevent contamination from atmospheric gases
What is the primary limitation of the SMAW and Gas welding processes when welding reactive metals and alloys?
Poor control over the heat input and contamination from atmospheric gases
What is the recommended process for joining thin aluminium sheets of thickness less than 1mm?
Tungsten Inert Gas Welding
What is the purpose of the inert gas in the tungsten inert gas welding process?
To shield the weld pool from atmospheric gases
Why is welding of aluminium and its alloys using shielded metal arc welding process not preferred?
Due to the corrosive properties of the halides
What is the typical shape of the tungsten electrode used in TIG welding?
Ball tip
What is the purpose of the inert shielding gas in TIG welding?
To protect the molten weld pool from atmospheric gases
What is the purpose of the collet in the TIG welding torch?
To hold the tungsten electrode in position
Why is DCEP polarity preferred for welding reactive metals like aluminum?
Because it helps to clean the weld pool
What is the range of welding current typically used in TIG welding?
3-200A
Why must the gas nozzle be replaced at regular intervals?
Because it gets worn out due to intense heat
Test your knowledge on the Tungsten Inert Gas welding process, also known as gas tungsten arc welding. Learn about the use of tungsten electrodes and inert gas for shielding weld pools to prevent contamination in high-strength reactive metals like stainless steel, aluminum, and magnesium alloys.
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