Shielding gas mixture for gas-metal arc welding

Details Shielding gas mixture for gas-metal arc welding Shielding gas mixture for gas-metal arc welding

1999-05-24

2000-08-29

Shaw, Clifford C.

Electric heating

Metal heating

By arc

219 74, B23K 9173

Patent

active

061112194

ABSTRACT:
A shielding gas mixture for gas-metal arc welding of austenitic stainless steel is provided in which the gas mixture comprises from about 2 to about 5% carbon dioxide, from about 1 to about 4% nitrogen, and the balance being argon. Also, a process for welding austenitic stainless steel is provided by forming an electric arc between a nonconsumable electrode and the workpiece and in which the gas mixture is used.

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patent: 5739503 (1998-04-01), Rouault et al.
N. Stenbacka et al., "Shielding gases for gas-metal arc welding of stainless steels", Scandinavian Journal of Metallurgy 16 (1987) pp. 229-232.
K.A. Lyttle et al., "Select the Best Shielding Gas Blend for the Application"; Welding Journal, Nov. 1990.
W. Lucas, "Shielding Gases for Arc Welding--Part I", Welding & Metal Fabrication, Jun. 1992, pp. 218-225.
J. Medford, "Shielding Gases for Stainless Steels", Australasian Welding Journal, Second Quarter 1993, pp. 12-15.

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