Shielding gas mixture for welding superalloys

Details Shielding gas mixture for welding superalloys Shielding gas mixture for welding superalloys

1991-01-10

1992-01-21

Shaw, Clifford C.

Electric heating

Metal heating

Nonatmospheric environment at hot spot

219137R, B23K 916

Patent

active

050830023

ABSTRACT:
This invention discloses a novel shielding gas mixture for use in gas shielded arc welding processes. The shielding gas of this invention may be used in a wide variety of processes when welding various superalloy compositions. In the broad range, the composition contains, in percent by volume, 5 to 12 helium, 0.1 to 0.9 carbon dioxide and the balance argon. The typical composition contains about 10 helium, about 0.25 to 0.55 carbon dioxide and the balance argon plus impurities.

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