Combined adjustable stir-welding head of friction stir welding
A technology of friction stir welding and stirring head, which is applied in welding equipment, non-electric welding equipment, metal processing equipment, etc., can solve the problems of poor versatility, and achieve the effects of saving materials, saving processing time, and reducing production costs
Inactive Publication Date: 2013-10-02
DALIAN UNIV OF TECH
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Problems solved by technology
However, it can only weld workpieces with a fixed thickness, and its versatility is poor
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[0009] The specific implementation manner of the present invention will be described in detail in conjunction with the accompanying drawings and technical solutions.
[0010] Such as figure 1 As shown, the installation sequence of the combined adjustable friction stir welding stirring head of the present invention is: first install the sleeve 2 on the clamping part 3, then install the stirring needle 1 and adjust the extension of the stirring needle 1 according to the thickness of the welding workpiece Finally, install the set screw 4 from the other end of the clamping part 3 to fix the stirring needle 1.
[0011] According to different welding materials, the materials of the stirring needle 1, the sleeve 2 and the clamping part 3 can be stainless steel, low carbon steel or tool steel, etc. Stirring pin 1 and sleeve 2 are shaped like figure 2 As shown, the threads of each connecting part are right-handed. When welding, the stirring head should rotate counterclockwise, the ...
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The invention belongs to the related technical field of friction stir welding, and relates to a combined adjustable stir-welding head of the friction stir welding. The stir-welding head is composed of a stirring pin, a sleeve, a clamping part and set screws. The lower half portion of the stirring pin is conical, threads are machined on the conical surface, and three inclined grooves in the identical helix direction with the threads are formed in the threads. Threads are arranged on the upper half portion of the stirring pin, and the stirring pin is connected with a threaded inner hole through the threads. The end face of the sleeve is a circular conical surface concaved inwards, grooves are evenly distributed in the circular conical surface concaved inwards, threads are machined in the inner cavity of the sleeve, and the sleeve is in thread connection with the outer surface of the lower end of the clamping part. According to the combined adjustable stir-welding head of the friction stir welding, all the parts are connected by adopting threaded structures, and dismounting and mounting are convenient and fast. The length of the part, stretched out, of the stirring pin can be adjusted accordingly in a certain range according to the thickness of a welding workpiece without replacing the stir-welding head. The combined adjustable stir-welding head of the friction stir welding saves materials, reduces production cost, and has certain generality.
Description
technical field [0001] The invention belongs to the technical field of friction stir welding, and in particular relates to a combined adjustable friction stir welding stirring head. Background technique [0002] Friction stir welding technology is a new type of solid-state welding technology invented by the British Welding Institute in 1991. It has the characteristics of good weld quality, low welding temperature, small welding deformation, and no pollution. Since its inception, this technology has received extensive attention, research and application. At present, it has been successfully applied to friction stir welding of aluminum, magnesium, copper, zinc, lead and other materials. Especially the friction stir welding of aluminum alloy has been successfully applied in industrial production. The key to friction stir welding technology lies in the design of the stirring head. Therefore, the rationality of the design of the stirring head directly affects the types of frict...
Claims
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IPC IPC(8): B23K20/12B23K20/26
Inventor 王福吉贾振元徐长玉马建伟董丰波
Owner DALIAN UNIV OF TECH