Content Description

Chapter 3 from the Welding Handbook, Ninth Edition, Volume 2, “Welding Processes, Part 1,” has been selected by the AWS Product Development Committee as a service to industry professionals. Gas tungsten arc welding (GTAW) is an arc welding process that uses an arc between a non-consumable tungsten electrode and the workpiece to establish a weld pool. The process is used with shielding gas and without the application of pressure, and may be used with or without the addition of filler metal. Because of the high quality of welds that can be produced by gas tungsten arc welding, the process has become an indispensable tool for many manufacturers, including those in the aerospace, nuclear, marine, petrochemical and semiconductor industries.

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