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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

Shielding Gases for Arc Welding[1]

Published:
2011
Page range:
296 - 301
Publication history
July 19, 2011

Abstract

The shielding gas used in an arc welding process has a significant influence on the overall performance of the welding system. These gases are argon, helium, oxygen, hydrogen, nitrogen, and carbon dioxide. This article discusses the shielding gas selection criteria for plasma arc welding, gas metal arc welding, and flux cored arc welding. It describes the basic properties of shielding gases, namely, dissociation, recombination, reactivity potential, oxidation potential, and gas purity. The article also provides information on the influence of the shielding gas on weld mechanical properties and self-shielded flux cored arc welding.

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2011. "Shielding Gases for Arc Welding", Welding Fundamentals and Processes, T. Lienert, T. Siewert, S. Babu, V. Acoff

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