Question

Which of the following welding processes uses a non-consumable electrode?

a) GMAW
b) GTAW
c) SMAW
d) FCAW
e) ESW

Answer 1

GTAW (Gas Tungsten Arc Welding) uses a non-consumable electrode. This technique utilizes a tungsten electrode that retains its solid state throughout the operation, distinguishing it from consumable electrode methods. So, the option b is correct.

Step-by-step explanation:

GTAW, commonly referred to as TIG (Tungsten Inert Gas) welding, employs a non-consumable electrode in the welding process.

This technique utilizes a tungsten electrode that retains its solid state throughout the operation, distinguishing it from consumable electrode methods.

Typically composed of pure tungsten or a tungsten alloy, the electrode remains present in the weld joint to sustain the arc and facilitate heat transfer to the workpiece.

Notably, the electrode's resistance to melting ensures stability and precision in the welding process. In situations requiring additional material, a separate filler metal is introduced.

TIG welding is valued for its ability to produce high-quality welds with minimal contamination, making it a preferred choice in industries where precision and cleanliness are paramount.

This welding method is widely employed in applications ranging from aerospace to delicate fabrication tasks.

Hence, the option b is correct, GTAW uses a non-consumable electrode.

Answer 2

Gas Tungsten Arc Welding (GTAW), also known as TIG welding, uses a non-consumable tungsten electrode, which remains intact and does not melt during the welding process(option b).

Step-by-step explanation:

The welding process that uses a non-consumable electrode is Gas Tungsten Arc Welding (GTAW), also known as Tungsten Inert Gas (TIG) welding. Unlike other welding processes such as Gas Metal Arc Welding (GMAW), Shielded Metal Arc Welding (SMAW), and Flux-Cored Arc Welding (FCAW), GTAW uses a tungsten electrode that does not melt and become part of the weld. In GTAW, the electrode creates the arc but remains intact, while filler metal is sometimes added separately when needed.

Hence, the answer is option b.