Laser oscillation filler single-side welding double-side forming welding method for thick framework T-shaped structure

A welding method and single-sided welding technology, applied in welding equipment, manufacturing tools, auxiliary devices, etc., can solve problems such as poor stability, low efficiency, and difficulty in welding thick skeleton curve welds, and achieve consistency and control stability. Effect

Active Publication Date: 2020-09-18
HARBIN WELDING INST LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] The present invention aims to solve the technical problems of poor stability and low efficiency in the existing T-shaped structure welding method, and it is difficult to weld th

Method used

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  • Laser oscillation filler single-side welding double-side forming welding method for thick framework T-shaped structure
  • Laser oscillation filler single-side welding double-side forming welding method for thick framework T-shaped structure
  • Laser oscillation filler single-side welding double-side forming welding method for thick framework T-shaped structure

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specific Embodiment approach 1

[0037] Specific implementation mode 1: This implementation mode is a kind of welding method for thick skeleton T-shaped structure laser oscillation filling wire single-sided welding and double-sided forming, which is specifically carried out according to the following steps:

[0038] 1. Carry out mechanical processing on the end face of the skeleton to be welded and the area to be welded on the skin; the thickness of the end face of the skeleton to be welded is d 1 3 ~ 12mm;

[0039] 2. Use a fixture to make the end surface of the skeleton to be welded in step 1 horizontal, and then fix it;

[0040] 3. Adjust the laser gun, and control the laser beam irradiation area to be located in the central area of ​​the end face of the skeleton to be welded, and then move the laser welding head to perform point-by-point calibration;

[0041] 4. Taking the center of the end face of the skeleton to be welded as the benchmark, check and adjust the walking path of the laser moving device to...

specific Embodiment approach 2

[0044] Embodiment 2: This embodiment differs from Embodiment 1 in that: the end surface of the skeleton to be welded in step 1 is a straight line or a curved surface. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0045] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the thickness d of the end surface of the skeleton to be welded described in step one 1 and skin thickness d 2 The ratio of is the bone-to-skin ratio γ, that is Wherein 0.2≤γ≤0.8. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to the field of material processing engineering, in particular to a laser oscillation filler single-side welding double-side forming welding method for a thick framework T-shapedstructure. The laser oscillation filler single-side welding double-side forming welding method aims to solve the technical problems that by using an existing T-shaped structure welding method, the stability is poor, the efficiency is low, and welding of thick framework curve welds is difficult. The method comprises the steps that firstly, the to-be-welded end face of a framework and a to-be-welded area of skin are processed; secondly, the framework is placed and fixed; thirdly, a laser gun is adjusted, and calibrating is carried out; fourthly, the walking path is adjusted; fifthly, the skin is assembled; and sixthly, the laser oscillation filler welding parameters are set, and welding is carried out. By the adoption of the laser oscillation filler single-side welding double-side forming welding method, laser oscillation filler welding is adopted, the effect of synchronous forming of the back face of the skin and the two sides of the framework is achieved through skin front face welding, and only one-time welding is needed to achieve synchronous forming of fillet welds of the two sides of the framework, achieve the purpose of improving the welding efficiency manyfold and guaranteethe consistency and stability of the forming process. The welding method is used for complex curve weld welding of the thick framework T-shaped structure formed by the skin-framework.

Description

technical field [0001] The invention relates to the field of material processing engineering. Background technique [0002] The T-shaped structure formed by the close contact between the skin and the skeleton is a common typical structure in engineering. The optimized design of the skeleton structure can not only effectively reduce the weight of the component and realize the lightweight manufacturing of the component, but also significantly improve the structure in some application fields. The comprehensive service performance of the components makes the key components based on the skin-skeleton T-shaped structure widely used in key fields such as aircraft shells, ships, and energy equipment. The manufacture of skin-skeleton T-shaped structures by welding is still the mainstream technology for mass production of such components. For this reason, domestic and foreign scholars have conducted a lot of research work on the efficient and high-quality welding of skin-skeleton T-sh...

Claims

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Application Information

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IPC IPC(8): B23K1/005B23K1/20B23K3/06B23K3/08
CPCB23K1/0056B23K1/20B23K3/063B23K3/08
Inventor 黄瑞生杨义成杜兵梁晓梅李小宇孙谦方乃文邹吉鹏曹浩聂鑫蒋宝方迪生武鹏博宋建廷
Owner HARBIN WELDING INST LTD
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