Vertical fillet weld welding device for titanium alloy parts is disclosed

Abstract

The invention discloses a titanium alloy part vertical fillet weld welding device, which comprises a protective cover enclosed by a plurality of cover plates, wherein the first cover plate is parallelto the second cover plate, the third cover plate is perpendicular to the fourth cover plate, and the fifth cover plate is parallel to the sixth cover plate; The first cover plate is perpendicular tothe fifth cover plate and the third cover plate is perpendicular to the fifth cover plate; The second cover plate is a mesh hole plate, and the first cover plate is provided with a TIG welding gun, the TIG welding gun penetrates the first cover plate and the second cover plate, and points to one side of the second cover plate; Between that first cov plate and the second cover plate, a gas deliverypipe is arrange, a plurality of air outlet holes are arranged on the circumference of the gas delivery pipe, and the inside of the gas delivery pipe is filled with protective gas. The invention aimsto provide a vertical fillet weld welding device for titanium alloy parts, which can effectively prevent the titanium alloy from being oxidized in the welding process and ensure the welding quality, and is particularly suitable for the situation of right fillet weld.

Description

technical field [0001] The invention belongs to the field of welding equipment, in particular to a vertical fillet weld welding device for titanium alloy parts. Background technique [0002] Titanium alloy has the advantages of low density, high tensile strength, and good corrosion resistance, but its chemical properties are extremely active at high temperatures. Above 200 ° C, titanium has a strong absorption effect on hydrogen, oxygen, and nitrogen in the air, so When welding titanium alloys, the welding high-temperature area needs to be protected by inert gas, and the weld pool, heat-affected zone, and base metal high-temperature area should be protected to prevent hydrogen, oxygen, nitrogen and other gases in the air from entering the weld. cause deterioration of weld performance. [0003] Among the existing titanium alloy welding protection technologies, some use a vacuum chamber to weld titanium alloy parts, and some use a protective drag cover to weld titanium alloys...

AI Technical Summary

Problems solved by technology

[0003] Among the existing titanium alloy welding protection technologies, some use a vacuum chamber to weld titanium alloy parts, and some use a protective drag cover to weld titanium alloys, etc.; when using a vacuum chamber for protection, the welded titanium alloy is zero Part size is affected by the vacuum chamber, and welding titanium alloys using a vacuum chamber makes the welding cost higher

At present, the most commonly used protection method is to use a protective drag cover, and the currently disclosed titanium alloy welding protective drag cover is mainly limited to welding relatively regular welding structures, such as: butt welds, lap welds, etc., and for circular fillet welds seams, square welds, etc. without effective welding devices

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