An aluminum alloy thin plate welding equipment

Abstract

The invention provides an aluminum alloy thin plate welding method and an aluminum alloy thin plate welding device. The aluminum alloy thin plate welding method and the aluminum alloy thin plate welding device are easy to use and are slightly influenced by welding space. The method includes the steps that high-temperature metal with strength unrecovered after welding is rolled to compensate compression plastic strain generated in the heating process, so that the shrinkage amount of weld joints is reduced, transient stress in the welding process is lowered, and then transient welding deformation is reduced; the metal which is rolled and is still in a cooling shrinkage and stretched state is extruded, under the action of extrusion force, a part of tensile stress is offset, and workpieces are protected against hot cracks. The aluminum alloy thin plate welding device comprises a trolley frame, a TIG welding device, a plate pressing device, a rolling device, an extrusion device and a control system, wherein the TIG welding device, the plate pressing device, the rolling device, the extrusion device and the control system are arranged on the trolley frame; the plate pressing device, the TIG welding device, the rolling device and the extrusion device are sequentially arranged in alignment at predetermined intervals. The aluminum alloy thin plate welding method can be achieved by using the aluminum alloy thin plate welding device.

Description

technical field [0001] The invention relates to the field of aluminum alloy welding, in particular to an aluminum alloy sheet welding equipment. Background technique [0002] Aluminum and its alloys are one of the most widely used non-ferrous metals. Aluminum alloy materials have the advantages of high specific strength, corrosion resistance, good electrical and thermal conductivity, and weldability. The thin-plate aluminum alloy structure has the characteristics of light weight, good process performance (easy to process and form), and convenient connection, so it replaces the traditional steel structure and is widely used in various welded structure products. During the welding process of aluminum alloy sheet, due to its large thermal conductivity and linear expansion coefficient, the temperature gradient between the vicinity of the molten pool and the surrounding metal is large during the welding process, and the vicinity of the weld is prone to deflection due to high temp...

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Problems solved by technology

The equipment is huge and scattered, which increases equipment cost, clamping man-hours and reduces production efficiency to a certain extent

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