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A dual-speed dual-shaft shoulder internal feeding friction stir welding device

A friction stir welding, double shoulder technology, applied in welding equipment, non-electric welding equipment, metal processing equipment, etc., can solve the thickness of friction stir welding and the complexity of the welded structure, prone to voids, tunnels, toe heels, cracks , increase the scope of application and other issues, to achieve the effect of a wide range of welding structures, reliable performance, and improved welding quality

Active Publication Date: 2022-05-03
SICHUAN AEROSPACE LONG MARCH EQUIP MFG CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a double-speed double-shaft internal feeding friction stir welding device, in order to solve the defects such as cavities, tunnels, toes and cracks that are prone to occur in the friction stir welding process, and at the same time improve the friction stir welding thickness and be welded The complexity of the welded structure increases the scope of application

Method used

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  • A dual-speed dual-shaft shoulder internal feeding friction stir welding device
  • A dual-speed dual-shaft shoulder internal feeding friction stir welding device
  • A dual-speed dual-shaft shoulder internal feeding friction stir welding device

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Embodiment

[0022] Example: see attached Figure 1-6 , a double-speed double-shaft internal feeding friction stir welding device, including two parts of a double-speed double-shaft shoulder mechanism and a feeding system, the double-speed double-shaft shoulder mechanism includes a stirring pin 1, a sealing head 2, and a sealing ring a3, shaft sleeve 4, heat insulation sleeve 5, upper shaft shoulder 6, string bearing 7, seal ring b8 nozzle 9, lower shaft shoulder 12, lock nut 13, plug 14, stirring needle 1 is installed on the upper shaft shoulder 6 Between it and the lower shoulder 12, the stirring needle 1 is installed inside the upper shoulder 6 through the string bearing 7, and the sealing ring b8 is used to seal the stirring needle 1 and the upper shoulder 6 to prevent the material from entering the string bearing 7 during the welding process. area, between the stirring pin 1 and the upper part of the upper shaft shoulder 6, install the shaft sleeve 4 and the heat insulation sleeve 5 i...

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Abstract

The invention relates to a double-speed double-shoulder internal feeding type friction stir welding device. The device comprises a double-speed double-shoulder mechanism and a feeding system. The double-speed double-shoulder mechanism includes a stirring needle, an upper shoulder, a string bearing and The lower shaft shoulder, the mechanism is the upper and lower double shaft shoulders to solve the problem of complicated clamping and high tooling cost. At the same time, the working speed of the upper and lower shaft shoulders and the stirring needle are respectively controlled to improve the welding quality. For the welding of space curved structure, the feeding system mainly includes feeding, rotary sealing joint, feeding conveying pipe and heating conveying device. In the process of double-shoulder friction stir welding, the feeding system sends the feeding needed for welding to welding. In the welding area, supplementary materials are used while welding to avoid the occurrence of defects such as voids, tunnels, toes and heels, and cracks during the welding process, so as to improve the welding quality and welding strength of friction stir welding.

Description

technical field [0001] The invention relates to the technical field of friction stir welding, in particular to a double-speed double-shaft shoulder internal feeding type friction stir welding device for welding processing. Background technique [0002] Friction stir welding is a solid-phase welding method. Through the friction heat between the rotating shoulder and the stirring pin and the metal to be welded, as well as the extrusion and stirring of the stirring pin, the welded metal undergoes plastic flow to form a firm connection. . Friction stir welding is widely used in the welding of high-performance metal materials such as aluminum alloy and magnesium, which avoids the defects such as air holes and cracks caused by traditional welding techniques when welding such materials, enhances the quality of the weld seam, and reduces the joint Deformation saves welding materials. Friction stir welding has the advantages of beautiful weld shape, good comprehensive mechanical pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K20/12B23K20/26
CPCB23K20/122B23K20/1245
Inventor 朱志郑森木林磊文远华卢启强沈勇陈勇唐帅蔡奇彧钟涵伍庆
Owner SICHUAN AEROSPACE LONG MARCH EQUIP MFG CO LTD
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