Joining device and joining method

Abstract

The invention discloses a vortex flow continuous extrusion joint device and an operation method thereof. The vortex flow continuous extrusion joint device comprises a vortex extrusion rod, an extrusion die boot, a vortex supporting wheel, an extrusion supporting ring and a locking nut. The extrusion die boot is sleeved on the periphery of the vortex extrusion rod and in loose fit with the same and connected with a non-rotating body of a frame; the extrusion supporting ring is sleeved on the periphery of the vortex supporting wheel which is arranged under an object to be jointed, a through hole is formed in the center of the vortex supporting wheel, and a vortex extrusion needle arranged at the end of the vortex extrusion rod penetrates the through hole to be fixed through the locking nut; the vortex extrusion rod is connected with a rotating spindle of the frame and is driven by the rotating spindle to rotate at a high speed; a curve-faced working belt matched with the curvature of a face to be jointed of the object to be jointed are arranged at the bottom of the extrusion die boot and the top of the extrusion supporting ring and is abutted against a joint seam of the object to be jointed; the vortex continuous extrusion joint device and the object to be jointed perform relative motion along the joint seam till joint is completed.

Description

technical field [0001] The invention relates to a joining device for non-ferrous metals such as aluminum, magnesium, titanium and their alloys, as well as steel materials such as stainless steel, in particular to a joining device and a joining method for joining thermoplastic workpieces with equal curvature surfaces. Background technique [0002] Pipes are widely used in electrical, petrochemical, air separation and many other fields. Many pipes are manufactured by rolling sheets into straight or spiral seam tube blanks, and then welding the straight or spiral seams to make pipes. Therefore, advanced welding technology is directly related to the production efficiency and quality of pipes. [0003] British Babcock Wire Equipment Company CONFORM continuous extrusion technology is to use the groove on the rotating extrusion wheel to continuously bring the aluminum rod into the extrusion shoe through the friction force, through the friction between tools, especially the internal...

AI Technical Summary

Problems solved by technology

[0005] Although the above two technologies have overcome the welding defect problems such as cracks and pores easily produced by the fusion welding method and poor material properties after welding, they both have their own disadvantages. In fact, due to the existence of curvature, the thickness loss after welding is greater. Even if the thickness compensation is given at the weld, the weld is always straight, and the same curvature surface cannot be obtained, and the excess compensation metal cannot be directly removed.

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