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ASM Handbook

Welding, Brazing and Soldering

Edited by
David LeRoy Olson
David LeRoy Olson
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;
Thomas A. Siewert
Thomas A. Siewert
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;
Stephen Liu
Stephen Liu
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;
Glen R. Edwards
Glen R. Edwards
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ASM International
Volume
6
ISBN electronic:
978-1-62708-173-3
Publication date:
1993
Book Chapter

Gas-Metal Arc Welding[1]

By
D.B. Holliday
D.B. Holliday
Westinghouse Electric Corporation
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Published:
1993
Page range:
180 - 185

Abstract

Gas-metal arc welding (GMAW) is an arc welding process that joins metals together by heating them with an electric arc that is established between a consumable electrode (wire) and a workpiece. This article discusses the advantages and limitations, operating principle, metal transfer mechanisms, and process variables of the GMAW process. The process variables include welding current, polarity, arc voltage, travel speed, electrode extension, electrode orientation, and electrode diameter. The major components of the basic equipment for a typical GMAW installation are discussed. The article also describes two consumable elements, such as electrode and shielding gas, of the GMAW process. It concludes with information on the safety aspects.

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D.B. Holliday, 1993. "Gas-Metal Arc Welding", Welding, Brazing and Soldering, David LeRoy Olson, Thomas A. Siewert, Stephen Liu, Glen R. Edwards

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