Vacuum electron beam welding method for aluminum alloy and vacuum electron beam welding system
A vacuum electron beam and electron beam welding technology, applied in electron beam welding equipment, welding/welding/cutting items, welding equipment, etc., can solve the problems of poor removal effect, low removal efficiency, unfriendly environment, etc., to reduce environmental protection Requirements, improve the appearance of welds, and reduce the effect of environmental pollution
Active Publication Date: 2021-03-05
南京速镭激光科技有限公司
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Problems solved by technology
[0007] At present, traditional methods such as mechanical grinding and acid-base cleaning are mainly used for cleaning, which have low removal efficiency, poor removal effect, and unfriendly environment.
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[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0027] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...
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Abstract
The invention relates to the field of welding technology, in particular to a vacuum electron beam welding method and a vacuum electron beam welding system for aluminum alloys. The method includes coupling a laser cleaning device at the front end of the electron beam gun head, using the laser beam generated by the laser cleaning device to clean and remove the oxide film on the surface of the aluminum alloy specimen; using the electron beam generated by the electron beam gun head to clean the cleaned aluminum alloy. The surface of the alloy test piece is welded; after the welding is completed, the laser beam cleans the surface of the weld. The method can effectively remove the high-density oxide film on the surface of the aluminum alloy, improve the shape of the weld seam, improve the welding quality, save the acid-base cleaning process, reduce environmental protection requirements, and reduce environmental pollution. At the same time, vacuum laser cleaning is performed on the weld seam after welding, which improves the appearance of the weld seam and facilitates the quality inspection of the weld seam.
Description
technical field [0001] The invention relates to the field of welding technology, in particular to a vacuum electron beam welding method and a vacuum electron beam welding system for aluminum alloys. Background technique [0002] Aluminum alloy materials are widely used in aviation, aerospace, ships and other fields due to their excellent corrosion resistance, high specific strength, easy processing, non-magnetism, no low-temperature transition, good electrical and thermal conductivity, etc. However, aluminum alloy is very easy to oxidize, forming a dense aluminum oxide film on the surface, with a melting point as high as 2050°C. During the welding process, defects such as pores and slag inclusions are easily formed, which reduces the mechanical properties of the weld and affects the welding quality. [0003] Aluminum alloys are very easy to absorb hydrogen during the welding process. The solubility of hydrogen in the solid state of the aluminum alloy is much lower than that ...
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IPC IPC(8): B23K15/06B08B7/00B08B15/04B23K103/10
CPCB08B7/0042B08B15/04B23K15/06
Inventor 詹云
Owner 南京速镭激光科技有限公司