_______________ type of electrode is used in Gas Tungsten Arc Welding (GTAW).

Explanation:

Gas Tungsten Arc Welding (GTAW)

• Gas Tungsten Arc Welding (GTAW), also known as Tungsten Inert Gas (TIG) welding, is a welding process in which an arc is formed between a non-consumable tungsten electrode and the metal being welded. The weld area and the electrode are protected from oxidation or other atmospheric contamination by an inert shielding gas (argon or helium).
• In GTAW, a high-frequency electric current is passed through a non-consumable tungsten electrode, creating an arc between the electrode and the workpiece. The heat generated by this arc melts the base metal, forming a molten weld pool. A filler metal may be added to the weld pool if necessary. The inert shielding gas, such as argon or helium, is directed around the weld area to protect it from atmospheric contamination, ensuring a clean and strong weld.

Applications: GTAW is commonly used in industries where high-quality welds are crucial, such as aerospace, automotive, and medical device manufacturing. It is also used for welding thin sections of stainless steel and non-ferrous metals such as aluminum, magnesium, and copper alloys.