Narrow groove gas shielding and related method
AssigneeGeneral Electric Company
InventorsLawrence Grycko, John Nolan, Andrew Tomko
Life of this patent
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Abstract
A shielding gas supply tube for delivering shielding gas to a welding arc at the bottom of a narrow groove includes at least one substantially hollow, elongated planar tube having a gas supply end and a gas discharge end; a pair of gas passageways within the tube, isolated from each other, extending between the supply end and the discharge end, and a pair of gas supply fittings at the supply end communicating separately with the pair of gas passageways.
Claims20
A shielding gas supply tube for delivering shielding gas to a welding arc at the bottom of a narrow groove comprising:
- at least one substantially hollow, elongated planar tube having a gas supply end and a gas discharge end;
- a pair of gas passageways within said tube, isolated from each other, extending between said supply end and said discharge end, and a pair of gas supply fittings at said supply end communicating separately with said pair of gas passageways.
Welding apparatus comprising:
- a welding electrode;
- a wire nozzle assembly;
- a pair of shielding gas supply tubes, one on either side of said welding electrode, each comprising a substantially hollow, planar tube having a gas supply end and a gas discharge end;
- and
- a pair of gas passageways within each said tube, isolated from each other, extending between said supply end and said discharge end, and a pair of gas supply fittings at said supply end communicating separately with said pair of gas passageways.
A method of supplying shielding gas to a welding electrode in a narrow groove comprising:
- (a) arranging a first shielding gas supply tube adjacent a forward side of a welding electrode;
- (b) arranging a second shielding gas supply tube adjacent a trailing side of the welding electrode;
- and
- (c) supplying shielding gas through a pair of passageways in each of said first and second shielding gas supply tubes arranged to direct first streams of shielding gas along said welding, electrode, and second streams of gas to a weld arc adjacent a tip of the welding electrode.
Dependencies are inferred from the claim text.