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High-energy beam precision welding tool for thin-walled cylinder and welding method

A thin-walled cylinder, precision welding technology, used in electron beam welding equipment, welding equipment, manufacturing tools, etc., can solve the problem of precision welding manufacturing of thin-walled cylinders without good tooling, shortening of measuring cylinders, and changes in the coaxiality of the cylinder. Accuracy control is very difficult and other problems, to achieve the effect of improving welding work efficiency, improving stability and precision of arc, and saving operation time

Active Publication Date: 2020-03-17
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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AI Technical Summary

Problems solved by technology

However, for high-energy beam welding of thin-walled cylinders with precise dimensions, it is difficult to achieve precision welding and manufacturing of thin-walled cylinders without good tooling.
If the usual electron beam or laser penetration welding is used, it will be a big problem to clean the metal spatter in the inner cavity. Due to the lack of assembly accuracy, it is difficult to control the geometric size after welding, and the shortening after welding and the coaxiality of the cylinder will occur. Changes, precision control is very difficult

Method used

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  • High-energy beam precision welding tool for thin-walled cylinder and welding method
  • High-energy beam precision welding tool for thin-walled cylinder and welding method
  • High-energy beam precision welding tool for thin-walled cylinder and welding method

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Embodiment 1

[0032] The inner diameter is 300mm, the wall thickness is 1.5mm, and the length is 1200mm. The electron beam welding manufacturing method of the titanium alloy cylinder is as follows:

[0033] A welding method for high-energy beam precision welding tooling for thin-walled cylinders. The thin-walled cylinder to be welded is placed on the arc-shaped tooling on the back, and the cylinder is spot-welded after precision assembly, and the position to be welded is aligned with the center of the welding seam B Line setting, and then press the front arc-shaped tooling pressing device on the front arc-shaped fixed tooling, adjust the gap between the welds to be welded to be less than 0.1mm, and the amount of misalignment to be less than 0.1mm, leaving space on both sides of the weld to be welded. 3mm distance to ensure that the electron beam passes through well during the welding process, and then manually fix it through the screw on the front arc-shaped tooling pressing device or fix it...

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Abstract

Disclosed are a thin-wall barrel high-energy beam precise welding tool and welding method. The thin-wall barrel high-energy beam precise welding tool comprises a fixed support base, a front-side arc-shaped tool compressing device, a front-side arc-shaped fixing tool and a reverse-side arc-shaped fixing tool. A to-be-welded thin-wall barrel placed on the thin-wall barrel high-energy beam precise welding tool can be fixed stably through the front-side arc-shaped fixing tool and the reverse-side arc-shaped fixing tool. The front-side arc-shaped tool compressing device compresses on the front-side arc-shaped fixing tool. A high-energy beam welds a to-be-welded weld joint after passing a weld joint A and a weld joint B. After welding, a screw or a pneumatic pressure device is loosened, the front-side arc-shaped fixing tool is taken out, and the welded barrel is taken out. Compared with the prior plane fixing mode, the thin-wall barrel high-energy beam precise welding tool and welding method improve the stability of barrel fixing and precision of radian, barrel deformation during fixing is avoided, the good shape dimensional precision of the thin-wall barrel is ensured, operation is convenient, so that operation time is saved, and welding work efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of metal material welding, in particular to a high-energy beam precision welding tool for a thin-walled cylinder and a welding method. Background technique [0002] Thin-walled cylinders are frequently used components in the aerospace field. For example, the inner cavity of a fuel tank cylinder is filled with fuel, and the movement of the fuel is realized by the unidirectional push of the piston along the inner wall of the cylinder. In order to ensure the utilization rate of fuel, it is required that there is no gap between the piston and the inner wall of the cylinder as much as possible to reduce the influence of fuel residue on power. Therefore, not only the cylinder is required to have a high roundness, but also the surface roughness of the inner wall is required to be extremely high. However, due to the limitation of the processing technology, the overall machining of the cylinder cannot be realized, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K15/00B23K15/10
CPCB23K15/0006B23K15/0013B23K15/006B23K15/10
Inventor 高福洋张毅张明辉高奇付文刘甲李瑞武刘志颖蒋鹏
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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