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ASM Handbook

Welding Fundamentals and Processes

Edited by
T. Lienert
T. Lienert
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T. Siewert
T. Siewert
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S. Babu
S. Babu
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V. Acoff
V. Acoff
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ASM International
Volume
6A
ISBN electronic:
978-1-62708-174-0
Publication date:
2011
Book Chapter

Gas Tungsten Arc Welding[1]

By
Lee E. Allgood
Lee E. Allgood
The Lincoln Electric Company
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Published:
2011
Page range:
344 - 354
Publication history
June 14, 2011

Abstract

The gas tungsten arc welding (GTAW) process derives the heat for welding from an electric arc established between a tungsten electrode and the part to be welded. This article provides a discussion on the basic operation principles, advantages, disadvantages, limitations, and applications of the process. It describes the equipment used for GTAW, namely, power supplies, torch construction and electrodes, shielding gases, and filler metals as well as the GTAW welding procedures. The article concludes with a review of the safety precautions to avoid possible hazards during the GTAW process: electrical shock, fumes and gases, arc radiation, and fire and explosion.

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Lee E. Allgood, 2011. "Gas Tungsten Arc Welding", Welding Fundamentals and Processes, T. Lienert, T. Siewert, S. Babu, V. Acoff

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