A welding method for a friction stir welding device of an aerospace vehicle tank

A technology of friction stir welding and welding method, which is applied in welding equipment, non-electric welding equipment, metal processing equipment, etc., and can solve the problems of synchronism of destroying mechanism, deterioration of synchronism, difficulty of maintenance and maintenance operation, etc.

Active Publication Date: 2022-02-01
GUIZHOU AEROSPACE TIANMA ELECTRICAL TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

This type of equipment is acceptable for welding small-sized products or storage tanks, but the moment of inertia caused by the rotation of the super-long and super-large-sized storage tanks due to its large self-weight will destroy the synchronization between the mechanisms. After long-term use, the synchronization will deteriorate, resulting in Welding quality cannot be guaranteed, and there are defects such as easy damage to equipment, error reporting, frequent maintenance and difficult maintenance operations

Method used

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  • A welding method for a friction stir welding device of an aerospace vehicle tank
  • A welding method for a friction stir welding device of an aerospace vehicle tank
  • A welding method for a friction stir welding device of an aerospace vehicle tank

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Embodiment Construction

[0028] The characteristics and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only configured to explain the present invention and to exemplify the principle of the present invention, and are not configured to limit the present invention. Additionally, the mechanical components in the figures are not necessarily drawn to scale. For example, the size of some structural components or regions in the drawings may be exaggerated for other structural components or regions, so as to facilitate the understanding of the embodiments of the present invention.

[0029] The orientation words appearing in the following description are ...

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Abstract

The invention provides a welding method for a friction stir welding device of a storage tank of an aerospace vehicle. The friction stir welding device of the storage tank of an aerospace vehicle includes a friction stir welding head and a milling head. The method includes: step S1, respectively milling the barrel section of the storage tank and the part to be welded at the bottom of the tank through the milling head around the circumferential direction of the storage box to mill out a matching butt joint surface; step S2, milling the barrel section of the storage box and the The milled butt joint surfaces of the bottom of the tank are seamed, and the friction stir welding head is used to perform circumferential rotation welding around the circumferential seam of the storage tank. The method solves the problem that the accuracy of the device decreases after a long service time due to the large inertia caused by the synchronous rotation, and improves the practicability of the device.

Description

technical field [0001] The invention relates to the field of friction stir welding, in particular to a welding method used in a friction stir welding device for a storage tank of an aerospace vehicle. Background technique [0002] Friction stir welding technology has been hailed as the most creative invention in the past 30 years in the field of welding. It is a high-quality, efficient, green, low-cost, and low-distortion solid-phase welding method that completely solves the problems caused by welding of various non-ferrous metals. A series of problems in the future, and gradually replace the fusion welding method, has been widely used in aviation and aerospace fields. [0003] At present, the conventional friction stir welding equipment for storage tanks in China is in the form that the head of the friction stir welding machine is fixed, and the storage tank to be welded is moved and rotated. This type of equipment is acceptable for welding small-sized products or storage ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P23/04B23K20/12B23K20/26
CPCB23K20/12B23K20/26B23P23/04
Inventor 季卫卫苏志强于乐庆宋晓伟
Owner GUIZHOU AEROSPACE TIANMA ELECTRICAL TECH
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