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Enhancement blowing-half-dry type underwater friction stir soldering set

A technology of friction stir welding and friction stir, applied in welding equipment, manufacturing tools, non-electric welding equipment, etc., can solve problems affecting the quality of welded joints, complicated welding operations, hydrogen absorption defects, etc., achieve simple structure, improve welding quality, The effect of air propulsion enhancement

Inactive Publication Date: 2014-12-10
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, both water immersion and water mist cooling have disadvantages, that is, it makes the welding operation more complicated, and what is more serious is that it is prone to hydrogen absorption defects and corrosion, which affects the quality of welded joints

Method used

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  • Enhancement blowing-half-dry type underwater friction stir soldering set
  • Enhancement blowing-half-dry type underwater friction stir soldering set

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Embodiment Construction

[0017] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0018] Such as Figure 1~2 As shown, an enhanced blowing-semi-dry underwater friction stir welding tool includes a columnar friction stir head 1, a driving gear 2 coaxially fixed on the friction stir head 1, and is sleeved on the friction stir head 1 through a bearing. The terminal gear 3 on the friction stirring head 1, as well as the transmission gear, the fan blade 6 and the air cover 7, wherein the friction stirring head 1 can be made of conventional high-speed steel...

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Abstract

The invention discloses an enhancement blowing-half-dry type underwater friction stir soldering set which comprises a columnar friction stir head, a drive gear coaxially and fixedly connected on the friction stir head, a terminal gear connected on the friction stir head in a sleeved mode through a bearing bush, a transmission gear, fan blades and an air cover. The transmission gear comprises a large gear and a small gear, wherein the large gear and the small gear are coaxial, the diameter of the large gear is larger than that of the small gear, the small gear is meshed with the drive gear, and the large gear is meshed with the terminal gear at the same time. The fan blades are arranged on the terminal gear and rotate along with the terminal gear, the air cover is arranged on the outer side of the friction stir head, and the fan blades are wrapped into an inner cavity of the air cover. An additional compressed air source is not needed, by utilizing a device of the friction stir head and double-stage transmission speed increasing of revolving speed of the fan blades, partial air environment nearby a soldering position is formed, moisture is effectively prevented from entering into a welding joint, and an adapting range of the revolving speed of the friction stir head by the soldering set can be large.

Description

technical field [0001] The invention belongs to the technical field of technical material processing and welding, and in particular relates to a water-cooled friction stir welding device. Background technique [0002] Friction stir welding (FSW) has been widely researched and applied since the invention of TWI in 1991, especially in the welding of aluminum, magnesium and its alloys with low melting point and easy oxidation, and in copper, titanium, composite materials and dissimilar materials. Welding and other fields have been widely researched and promoted. However, the friction stir welding process is essentially a non-uniform, unstable, dynamic process of thermodynamics, plastic rheology, heat transfer, mass transfer, and phase change, which fundamentally leads to the asymmetry of joint temperature, rheology, structure, and performance. Non-uniformity and discontinuity, so that the joints are mostly damaged due to "weak connections" and lead to a decrease in the joint s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K20/12
Inventor 陈书锦胡晓晴胡庆贤胥国祥刘川
Owner JIANGSU UNIV OF SCI & TECH
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