TIG welding equipment and TIG welding methods

Details TIG welding equipment and TIG welding methods TIG welding equipment and TIG welding methods

2011-03-29

2011-03-29

Paschall, Mark H (Department: 3742)

Electric heating

Metal heating

Nonatmospheric environment at hot spot

C219S121460

Reexamination Certificate

active

07915560

ABSTRACT:
The TIG welding methods of the present invention include generating an electric arc between an electrode and an object to weld the object, wherein a first shielding gas including an inert gas flows toward the welded object surrounding the electrode, a second shielding gas containing an oxidative gas flows toward the welded object along a periphery of the first shielding gas, and the concentration of the oxidative gas in the second shielding gas is set such that the oxygen concentration in the welded metal portion of the welded object is within a range of 70 to 220 wt. ppm.

REFERENCES:
patent: 4161645 (1979-07-01), Shimada et al.
patent: 4527038 (1985-07-01), Cuny et al.
patent: 4680440 (1987-07-01), Barlet
patent: 5597109 (1997-01-01), Ohmi et al.
patent: 6371359 (2002-04-01), Kimura et al.
patent: 2608115 (1976-09-01), None
patent: 0799666 (1997-10-01), None
patent: 1459830 (2004-09-01), None
patent: 50-92844 (1975-07-01), None
patent: 55-122684 (1980-09-01), None
patent: 60-170580 (1985-09-01), None
patent: 61-017371 (1986-01-01), None
patent: 06-277847 (1994-10-01), None
patent: 6-297149 (1994-10-01), None
patent: 9-10943 (1997-01-01), None
patent: 09-070667 (1997-03-01), None
patent: 10-249529 (1998-09-01), None
patent: 11-138264 (1999-05-01), None
patent: 2003-019561 (2003-01-01), None

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