6005A ultra-thin aluminum alloy plate friction-stir welding method

A technology of friction stir welding and friction stir, which is applied in welding equipment, welding/welding/cutting items, metal processing, etc., can solve the problems that it is difficult to meet the size and performance requirements of ultra-thin plates, and improve welding efficiency and dimensional accuracy The effect of high and low production cost

Inactive Publication Date: 2017-08-18
辽宁忠旺铝合金精深加工有限公司
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Problems solved by technology

[0002] The material used for the bottom plate of the bus is 6005A aluminum alloy, its wall thickness is 1.85mm, and its dimensional accuracy is ultra-high-precision. 260, A(%)≥7, and the existing welding technology is difficult to meet the size and performance requirements of ultra-thin plates

Method used

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Embodiment Construction

[0007] Preferred embodiments of the present invention will be described in detail below.

[0008] In this embodiment, the ESAB automatic friction stir welding machine is used to weld the 6005A ultra-thin aluminum alloy plate, and the process parameters of the friction stir welding are controlled during the welding process; wherein, the downward insertion speed of the stirring head is 12mm / min, and the stirring head The rotation speed is controlled at 1000r / min, the insertion depth of the stirring needle is 1.85mm, the welding pressure of the stirring head is set at 4.7KN, the rotating speed of the stirring head is controlled at 1400r / min during the welding process, and the welding speed is 1020mm / min.

[0009] For thin plate long welds, problems such as subsidence, weld leakage, and low weld performance are prone to occur during the welding process. By improving the existing friction stir welding process, increasing the speed of the stirring head and reducing the pressure of th...

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Abstract

The invention discloses a 6005A ultra-thin aluminum alloy plate friction-stir welding method. The rotating speed of a stirring head is increased, the welding pressure of the stirring head is reduced, and therefore the lap connection problem of a long-weld-joint ultra-thin plate is solved. A sectional material lap connection welding joint is attractive in appearance and high in size precision, the postwelding size and mechanical property of a sectional material meet technical requirements, the welding efficiency is greatly improved, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the field of welding, and in particular relates to a friction stir welding method for a 6005A ultra-thin aluminum alloy plate. Background technique [0002] The material used for the bottom plate of the bus is 6005A aluminum alloy, its wall thickness is 1.85mm, and its dimensional accuracy is ultra-high-precision. 260, A(%)≥7, and the existing welding technology is difficult to meet the size and performance requirements of ultra-thin plates. Joining by friction stir welding, the mechanical properties of the weld can reach 95% of the properties of the base metal, but for the aluminum alloy bus body, the thickness of the profiles welded by the friction stir welding process is greater than 2mm, therefore, it is necessary to propose A friction stir welding method suitable for wall thickness below 2mm to meet the size and performance requirements of ultra-thin plates. Contents of the invention [0003] In view of this, the purpo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/12
CPCB23K20/123B23K2101/006B23K2103/10
Inventor 洪浩洋王睿王爽冯小东祝哮谢方亮
Owner 辽宁忠旺铝合金精深加工有限公司
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