An Ultrasonic Assisted Friction Stir Welding

A friction stir welding and ultrasonic technology, which is used in welding equipment, non-electric welding equipment, metal processing equipment, etc., can solve the problems of not being able to meet splicing welding and lap welding operation methods at the same time, affecting the welding effect of plates, and inconvenient plate fixing. The effect of improving softening efficiency, improving hardness and improving efficiency

Active Publication Date: 2021-01-26
HUNAN UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Ultrasonic transmission is weak and the refinement efficiency is low;
[0005] 2. During welding, there is a lack of pressing on the plate. Once the stirring head is tilted during welding, it will affect the welding effect of the plate;
[0006] 3. When welding, it is inconvenient to fix the plates. The same worktable can only fix plates with one welding method, so it cannot meet the two operation methods of splicing welding and lap welding at the same time.

Method used

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  • An Ultrasonic Assisted Friction Stir Welding
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  • An Ultrasonic Assisted Friction Stir Welding

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0036] see Figure 1-9, the present invention provides a technical solution: an ultrasonic-assisted friction stir welding, including a load-bearing frame 1, a hydraulic cylinder 2, a first plate surface 3, a slide rail 4, a support arm 5, a slider 6, a chute 7, a connecting Block 8, fixed magnet 9, limit bar 10, second plate surface 11, contact rod 12, metal sheet 13, electromagnetic coil 14, wire 15, steel plate 16, first motor 17, screw rod 18, conveyor belt...

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Abstract

The invention discloses an ultrasonic-assisted friction stir welding, which comprises a load-bearing frame, a support arm and a limit bar. A hydraulic cylinder is installed inside the load-bearing frame, and a first plate surface is installed above the load-bearing frame from left to right. and the second board surface, a fixed magnet is fixed above the side of the support arm, the limiting bar is connected to the chute through the connecting blocks on both sides, and the upper surfaces of the first board surface and the second board surface are set There is a contact rod, and a metal sheet and an electromagnetic coil are installed inside the first board surface and the second board surface, a wire is connected under the metal sheet, a fixed head is fixed under the protective cover, and the fixed head passes through the inside The surface-fixed heat conducting sheet and the friction sheet are connected to each other, and an ultrasonic generator is fixed inside the protective cover. In the ultrasonic-assisted friction stir welding, when the stirring head rotates, the welding head is in a fixed state, and the stirring head transfers heat to the welding head, and the stirring head and the welding head heat-melt the plate at the same time, which improves the welding efficiency.

Description

technical field [0001] The invention relates to the technical field of friction stir welding, in particular to ultrasonic-assisted friction stir welding. Background technique [0002] Friction stir welding uses frictional heat and plastic deformation heat as the welding heat source. A cylinder or other shaped stirring needle is inserted into the joint of the workpiece. Through the high-speed rotation of the welding head, it rubs against the material of the welding workpiece, so that The temperature of the material at the joint is raised and softened, and at the same time, the material is subjected to friction stir to complete the welding. In order to improve the efficiency of friction stir welding, the existing friction welding is assisted by ultrasonic waves, and the ultrasonic waves are used to refine the welded plate and reduce the strength of the welded plate. [0003] However, the existing friction stir welding still has the following problems: [0004] 1. Ultrasonic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K20/12B23K20/26
CPCB23K20/1245B23K20/127B23K20/26
Inventor 罗佑新
Owner HUNAN UNIV OF ARTS & SCI
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