What is the maximum wind velocity permitted during GMAW, FCAW-G, and GTAW processes?

The maximum wind velocity permitted during Gas Metal Arc Welding (GMAW), Flux-Cored Arc Welding (FCAW-G), and Gas Tungsten Arc Welding (GTAW) processes is specified to be 5 mph. This restriction is in place to ensure the stability and quality of the welds being made.

High wind speeds can create turbulence, which may interfere with the shielding gas that protects the weld pool from atmospheric contamination. Proper shielding is crucial for these welding processes as it prevents oxidation and other reactions that can compromise the integrity of the weld. By limiting the wind speed to 5 mph, the code helps to maintain the necessary atmosphere around the weld area, thereby ensuring that the welds produced meet the performance and quality standards outlined in the AWS D1.1 code.

Understanding this limit is vital for maintaining safe and effective welding practices, especially in outdoor conditions, where wind can be a significant factor affecting the outcome of the welding operation.