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Aluminum alloy laser welding method

A laser welding, aluminum alloy technology, applied in laser welding equipment, welding equipment, cleaning methods and utensils, etc., can solve the problem of increasing the size of the keyhole, increasing the size of the molten pool and heat input, and aggravating the burning loss of the low melting point alloy elements of the aluminum alloy. and other problems to achieve the effect of improving the strength of the joint and overcoming the increase in heat input

Inactive Publication Date: 2019-07-26
JIANGSU JICUI ADVANCED METAL MATERIAL RES INST CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0006] However, due to the complexity of the operation of the above-mentioned existing welding methods, on the one hand, it increases the equipment cost and the complexity of the process; and the improvement of the mechanical properties of the joints, and it will also increase the burning loss of low melting point alloy elements such as magnesium and zinc during the aluminum alloy welding process

Method used

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  • Aluminum alloy laser welding method
  • Aluminum alloy laser welding method
  • Aluminum alloy laser welding method

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Embodiment

[0030] Embodiment: the angle between the axis of the laser head and the vertical direction is α=5°, and the angle between the axis of the laser head and the vertical direction is β=40°;

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Abstract

The invention discloses an aluminum alloy laser welding method. The aluminum alloy laser welding method is used for carrying out aluminum alloy laser welding under the specific laser head angle, wirefeeding angle and specific spot welding wire molten pool position relation, the stability of a molten pool and the timely liquid metal supplement of process air holes during the collapse of key holesare guaranteed, so that the generation of the process air holes is effectively controlled, and meanwhile, the heat input increase caused by the fact that the size of the key holes is added to maintainthe stability of the molten pool is overcome, the deformation is increased, the burning loss of the alloy element is intensified, and the strength of a joint is effectively improved.

Description

technical field [0001] The invention relates to the technical field of advanced welding of lightweight aluminum alloys, in particular to the technical field of laser wire-filled welding of aluminum alloys. Background technique [0002] Due to its high specific strength, good corrosion resistance, easy forming, and good regeneration performance, aluminum alloys are widely used in automobile manufacturing, aerospace, new energy power batteries and other industries. The selection of aluminum alloy materials is an effective way to achieve lightweight. The laser welding technology has the advantages of high efficiency and small heat-affected zone. In developed countries such as Japan and Germany, the laser welding technology of aluminum alloys has been used in automobile manufacturing, aerospace and other fields. With the continuous maturity of aluminum alloy laser welding technology, This technology is gradually used in shipbuilding, new energy power batteries and other fields. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/24B23K26/12B23K26/70B08B7/00B08B3/12B23K103/10
CPCB08B3/12B08B7/0042B23K26/123B23K26/24B23K26/702B23K2103/10
Inventor 薛志清赵锐李乡亮
Owner JIANGSU JICUI ADVANCED METAL MATERIAL RES INST CO LTD
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