Question

the gtaw welding process requires clean base metals.

true
false

Explanation:

Analyze the GTAW process requirements

Using the GTAW Definition and Welding Contamination knowledge points
Gas Tungsten Arc Welding (GTAW) is highly sensitive to surface contaminants such as oil, grease, rust, paint, and oxides. Because the process uses a non-consumable tungsten electrode and an inert shielding gas without any chemical fluxing agents to clean the weld pool, any impurities present on the base metal will lead to severe weld defects like porosity, cracking, or tungsten contamination. Therefore, meticulous cleaning of the base metals is an absolute requirement for successful GTAW.

Answer:

• True (Correct answer)
• False