Aluminium alloy electron beam welding method based on laser cleaning treatment

A technology of electron beam welding and laser cleaning, which is applied to electron beam welding equipment, cleaning methods and utensils, welding equipment, etc., to achieve the effects of simple operation, good welding seam formation and high production efficiency

Inactive Publication Date: 2019-10-29
BEIJING XINGHANG MECHANICAL ELECTRICAL EQUIP
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Problems solved by technology

[0005] The invention proposes an aluminum alloy electron beam welding method based on laser cleaning treatment to solve the technical problem of how to improve the quality of aluminum alloy electron beam welding

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  • Aluminium alloy electron beam welding method based on laser cleaning treatment

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Embodiment Construction

[0030] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] This embodiment proposes a 5A06 aluminum alloy electron beam welding method based on laser cleaning treatment. The specification of the 5A06 aluminum alloy electron beam welding test piece is 300mm×100mm×1.5mm. The electron beam welding method includes the following steps:

[0032] S1. Welding surface treatment: use mechanical processing methods to process the surface to be welded of the test piece to be welded to ensure that the maximum allowable value of the surface roughness Ra is 3.2 μm, and the butt joint surface is smooth, clean, burr-free, and maintain edges and corners;

[0033] S2. Pre-welding preparation: Laser cleaning the surface to be welded and the surrounding 20mm area of ​​the test piece to remove ...

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Abstract

The invention belongs to the technical field of welding, and particularly relates to an aluminium alloy electron beam welding method based on laser cleaning treatment. A machining method is adopted, the to-be-welded face of an aluminum alloy to-be-welded test piece is machined, and the surface quality of the to-be-welded face is improved; a laser cleaning device is adopted for carrying out laser cleaning treatment on the to-be-welded face of the to-be-welded test piece, and oil contamination and non-metallic impurities of the surface of the test piece are removed; a welding clamp and a tool are used for assembling the to-be-welded test piece, and it is ensured that the welding face of the to-be-welded test piece is aligned, clamped and fixed; and an electron beam welding machine is used for welding the to-be-welded test piece. Laser cleaning is used for carrying out before-welding treatment on the material, a workpiece cannot be physically damaged, physical contact is not needed, operation is easy and convenient, and production efficiency is high. After welding, the welding line is good in forming, the welding line surface is free of defects of cracks, air holes, sinking, undercut,weld beading and the like, and welding inner quality and the normal-temperature mechanical property can meet the standard need.

Description

technical field [0001] The invention belongs to the field of welding technology, in particular to an aluminum alloy electron beam welding method based on laser cleaning treatment. Background technique [0002] Aluminum alloy has high specific strength, stable corrosion resistance, good electrical and thermal conductivity, and also has excellent processing and welding properties. Lots of applications. [0003] Laser cleaning is an efficient and environmentally friendly cleaning method. It can be used for cleaning aluminum alloys, titanium alloys, high-temperature alloys and other materials before welding to remove oil stains and oxide films on the surface of materials. Compared with traditional cleaning methods, it will not damage the workpiece. Causes physical damage without physical contact; laser directionality, good accessibility, easy automation; optional area cleaning and easy operation. Contents of the invention [0004] (1) Technical problems to be solved [0005...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K15/00B08B7/00
CPCB08B7/0042B23K15/0033B23K15/0046
Inventor 马建强胡晓勇高海涛朱冬妹赵红凯王瑞
Owner BEIJING XINGHANG MECHANICAL ELECTRICAL EQUIP
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