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An integrated platform and method for ultrasonic-assisted synchronous welding and heat treatment

An auxiliary synchronization and integrated platform technology, applied in heat treatment furnaces, heat treatment equipment, welding equipment, etc., can solve problems such as reduction of hot crack tendency, increase in strength, refinement of weld grains, etc., to achieve increased strength, convenient operation, and safety. high sex effect

Active Publication Date: 2022-07-08
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem of existing workpiece welding, the present invention proposes an integrated platform and method for ultrasonic-assisted synchronous welding and heat treatment. The present invention uses ultrasonic vibration devices for degassing, so that the pores in the molten pool are reduced, and quenched by liquid nitrogen Grain refinement, followed by post-weld heat treatment, can refine the weld grain, reduce the tendency of thermal cracks, and increase the strength

Method used

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  • An integrated platform and method for ultrasonic-assisted synchronous welding and heat treatment
  • An integrated platform and method for ultrasonic-assisted synchronous welding and heat treatment
  • An integrated platform and method for ultrasonic-assisted synchronous welding and heat treatment

Examples

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Effect test

Embodiment 1

[0032] Example 1: as figure 1 As shown, an integrated platform for ultrasonic-assisted synchronous welding and heat treatment includes a box body, a welding backing plate 3, a liquid nitrogen nozzle 4, a welding torch 5, a fixture 6, a control panel 7, a moving backing plate 10, a heating base plate 11, an electric Window 12, mechanical arm 13, ultrasonic vibration plate 14 and vertical partition,

[0033] The vertical partition is vertically fixed in the box, and the two sides of the vertical partition are respectively the welding cavity and the heat treatment cavity. The ultrasonic vibration plate 14 is arranged at the bottom of the box and the ultrasonic vibration plate 14 is located in the welding cavity. The welding pad The plate 3 is arranged at the top of the ultrasonic vibration plate 14, the bottom end of the robotic arm 13 is fixedly arranged at the bottom of the box body, and the robotic arm 13 is located between the welding pad 3 and the heating base plate 11, and ...

Embodiment 2

[0042] Example 2: The integrated platform for ultrasonic-assisted synchronous welding and heat treatment in this embodiment is basically the same as the integrated platform for ultrasonic-assisted synchronous welding and heat treatment in Example 1, except that the four corners of the moving backing plate 10 are provided with rollers , the four corners of the heat treatment cavity are vertically provided with longitudinal slide rails, and the rollers are slidably arranged on the longitudinal slide rails; the moving backing plate 10 is a magnetic backing plate, and a ring-shaped electromagnet is arranged on the inner wall of the middle part of the heat treatment chamber. The ring-shaped electromagnet Located on the edge of the sealing ring, the annular electromagnet is connected to the control panel 7;

[0043] like figure 2 As shown, the four corners of the heat treatment chamber are provided with support members, the support members include support beams 9, electric telescop...

Embodiment 3

[0047] Embodiment 3: The integrated platform for ultrasonic-assisted synchronous welding and heat treatment in this embodiment is basically the same as the integrated platform for ultrasonic-assisted synchronous welding and heat treatment in Embodiment 2, except that the ultrasonic vibration plate 14 includes a vibrating top plate, a casing , Ultrasonic generator, the vibrating top plate is fixed on the top of the shell, the shell is filled with water, the transmitting end of the ultrasonic generator is set with the center in the shell, and the ultrasonic generator is connected with the control panel.

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Abstract

The invention relates to an integrated platform and method for ultrasonic-assisted synchronous welding and heat treatment, and belongs to the technical field of welding. The platform includes a box, a welding backing plate, a liquid nitrogen nozzle, a welding torch, a fixture, a control panel, a moving backing plate, a heating bottom plate, an electric window, a mechanical arm, an ultrasonic vibration plate and a vertical partition. In the invention, the ultrasonic-assisted welding process and the heat treatment process are carried out synchronously, the ultrasonic-assisted welding makes the gas in the weld be discharged, the liquid nitrogen quenching can refine the crystal grains, and the synchronous heat treatment makes the molten pool rapidly cool from a high temperature of 700-750°C to room temperature. Through the ultrasonic auxiliary and synchronous heat treatment method, the invention can refine the grains of the welded joints, better improve the metal welding performance, reduce the sensitivity of hot cracks, and has the advantages of convenient operation and high safety.

Description

technical field [0001] The invention relates to an integrated platform and method for ultrasonic-assisted synchronous welding and heat treatment, and belongs to the technical field of welding. Background technique [0002] At present, in actual production, the integrated use of the welding platform is less, and the welding process is prone to defects such as pores, cracks and joint softening. In aluminum alloy laser welding, the free electron density of aluminum alloy is high, and it is easy to react with the photons carrying energy in the laser to reflect the energy, so the absorption rate of the laser during welding is relatively low. Porosity is a key problem in aluminum alloy welding, and is generally divided into two categories, namely hydrogen holes and process pores. Under normal circumstances, the shrinkage rate of aluminum alloys during solidification is relatively large, and the welding stress and welding deformation are large. At the same time, the weld metal wil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K20/10B23K20/24B23K20/26C21D9/50C21D1/63
CPCB23K20/10B23K20/24B23K20/26C21D9/505C21D1/63Y02P10/20
Inventor 严继康董石玉周国琼甘国友冷崇燕万祥明邱哲生李家奇
Owner KUNMING UNIV OF SCI & TECH
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