Inventors:
Gregory L. Hoback - Greentown IN
James L. Meyers - Kokomo IN
Assignee:
Haynes International, Inc. - Kokomo IN
International Classification:
B23K 916
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.