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Titanium 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 easy operation, good weld formation and high production efficiency

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

[0006] The invention proposes a titanium alloy electron beam welding method based on laser cleaning treatment to solve the technical problem of how to improve the quality of titanium alloy electron beam welding

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Embodiment Construction

[0031] 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.

[0032] This embodiment proposes a TA15 titanium alloy electron beam welding method based on laser cleaning treatment. The specification of the TA15 titanium alloy electron beam welding test piece is 300 mm × 100 mm × 1.5 mm. The electron beam welding method includes the following steps:

[0033] 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;

[0034] S2. Pre-welding preparation: Laser cleaning the surface to be welded and the surrounding 20mm area of ​​the test piece to ...

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Abstract

The invention belongs to the technical field of welding, and particularly relates to a titanium alloy electron beam welding method based on laser cleaning treatment. The titanium alloy electron beam welding method based on laser cleaning treatment comprises the steps that a machining method is adopted, the faces, to be welded, of titanium alloy test parts to be welded are processed, and the surface quality of the faces to be welded is improved; a laser cleaning facility is adopted to conduct laser cleaning treatment on the faces, to be welded, of the test parts to be welded, and oil stains andnon-metallic impurities on the surfaces of the test parts are removed; welding clamps and tools are utilized to assemble the test parts to be welded, and the situation that the welded faces of the test parts to be welded align and are clamped and fixed is guaranteed; and an electron beam welding machine is utilized to weld the test parts to be welded. According to the titanium alloy electron beamwelding method based on laser cleaning treatment, the laser cleaning is utilized to conduct pre-welding treatment on materials, no physical damage to workpieces can be caused, the physical contact isnot required, the operation is easy and convenient, and the production efficiency is high. A weld joint is well formed after welding is accomplished, the surface of the weld joint is free of the defects such as cracks, pores, pits, undercutting and overlap, and the welding interior quality and the normal temperature mechanical properties can meet the standard requirements.

Description

technical field [0001] The invention belongs to the field of welding technology, and in particular relates to a titanium alloy electron beam welding method based on laser cleaning treatment. Background technique [0002] Titanium and titanium alloys are widely used in aerospace, marine engineering, petrochemical and other fields due to their high specific strength, specific stiffness, corrosion resistance, and high temperature resistance. [0003] Titanium is a kind of active metal. It reacts with oxygen, nitrogen and hydrogen at high temperature quickly. It starts to absorb hydrogen at 250°C, oxygen at 400°C, and nitrogen above 600°C. Effectively protect parts with high temperature. The main component of TA15 titanium alloy is Ti-6.5Al-2Zr-1Mo-2V, which has high room temperature, high temperature strength and good thermal stability. [0004] Laser cleaning is an efficient and environmentally friendly cleaning method. It can be used for pre-welding cleaning of materials su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K15/00B08B7/00
CPCB08B7/0042B23K15/0046B23K15/0033
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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