Thin-wall aluminum alloy three-plate butting one-time fusion welding process method

Abstract

The invention discloses a thin-wall aluminum alloy three-plate butting one-time fusion welding process method, which specifically comprises the following steps of: 1, preparing welding workpieces which comprise a box plate (1) and a stud partition plate (2), wherein the upper end and the lower end of the stud partition plate (2) are embedded into the box plate (1) and protrude out of the box plate (1), and the protrusion is 2 mm; 2, preparing welding process equipment to guarantee uniform stressing of a head region to be welded; 3, cleaning the welding workpieces and clamping the welding workpieces on the welding process equipment; 4, setting welding parameters on a welding machine and welding the welding workpieces; and 5, disassembling the welding process equipment and removing the welding workpieces. Through the method, the problems of difficulty in realizing welding of a thin-wall aluminum alloy box body structure in a narrow space and high probability of collapse and burn-through and difficulty in repair of welding of an aluminum alloy thin plate existing in the conventional fillet weld and butting weld are solved.

Description

technical field [0001] The invention relates to an aluminum alloy one-time fusion welding process method, in particular to a thin-walled aluminum alloy three-plate butt joint one-time fusion welding process method. Background technique [0002] For the welded structure of the rib partition, usually when the space is open and the thickness of the plate is suitable for welding, a single-sided or double-sided fillet weld is used to weld a vertical rib plate as a partition between one or two flat plates. This is accomplished by fillet or butt welding with molten electrode or tungsten filler metal. Since the welding process mainly relies on forced forming of process equipment, welding process correction, and post-weld machining to achieve deformation control, it often brings welding defects such as waves, warping, torsion, shrinkage deformation, and weld seam collapse. However, in the case of the above-mentioned structure in a narrow space and an aluminum alloy sheet below 2 mm,...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a thin-walled aluminum alloy three-plate butt joint fusion welding process method, which solves the problem that conventional fillet welds and butt welds are difficult to realize the welding of thin-walled aluminum alloy box structures in narrow spaces, and the welding of aluminum alloy thin plates is easy to collapse, Burn-through and hard-to-remediate problems

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