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A device for reducing weld residual stress by using high-pressure water jet

A high-pressure water jet and residual stress technology, applied in the field of welding, can solve the problems of inability to adapt, adjust the angle of the water jet and the welding seam, and large limitations, and achieve a simple structure, reduced stress, and reduced residual stress. Effect

Active Publication Date: 2018-10-19
SHANDONG UNIV OF SCI & TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

However, in actual working conditions, welds are not only linear welds, but also fillet welds, etc. The above-mentioned vertical water jet injection method is only suitable for linear welds, and it cannot adjust the water jet according to actual working conditions The angle between the beam and the weld seam, and the above method cannot be adaptively adjusted when facing weld seams of different widths, which has great limitations

Method used

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  • A device for reducing weld residual stress by using high-pressure water jet
  • A device for reducing weld residual stress by using high-pressure water jet
  • A device for reducing weld residual stress by using high-pressure water jet

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Embodiment Construction

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the present invention is not limited to these embodiments.

[0033] Such as Figure 1 to Figure 6 As shown, a device that uses high-pressure water jets to reduce weld residual stress includes a control system, a high-pressure water jet delivery pump 2, a mechanical arm system 5, and a nozzle system. The control system includes a controller 1 and an image collector 6. The image collector 6 is arranged in front of the following first mechanical arm 51. The image collector 6 is connected to the controller 1 and transmits the collected image information to the controller in real time. 1.

[0034] The nozzle system includes a nozzle 7, a high-pressure water jet delivery pump 2 is connected to the nozzle 7 through a high-pressure hose 3 and a high-pressure connecting pipe 8, wherein one end of the high-pressure hose 3 is connected to the...

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Abstract

The invention discloses a device for reducing weld residual stress by using high-pressure water jet, which includes a control system, a high-pressure water jet delivery pump, a mechanical arm system and a nozzle system; the nozzle system includes a nozzle, the nozzle is connected with the high-pressure water jet delivery pump, and The water jet delivery pump supplies the nozzle with high-pressure water jet; the mechanical arm system includes the first mechanical arm and the driving device that drives the first mechanical arm to complete the rotation, pitching, and lifting movements. The nozzle is set in front of the first mechanical arm; the control system It includes a controller and an image collector. The image collector is arranged in front of the first mechanical arm. The image collector is connected with the controller and transmits the collected image information to the controller in real time. The invention is flexible and has high degree of automation, and can be used to reduce the residual stress of welding seams of different types and widths.

Description

technical field [0001] The invention belongs to the field of welding technology, and in particular relates to a device for reducing the residual stress of a welding seam by using a high-pressure water jet. Background technique [0002] Welding is a processing technology that uses heating or pressure, adding or not adding filler materials to connect components together indetachably or pile up a covering layer on the surface of the base material. It is an indispensable processing technology in modern production. , but there is a highly concentrated instantaneous heat input during welding, which leads to uneven distribution of the temperature field of the entire component and inevitably produces residual stress after welding. The existence of welding residual stress will seriously affect the processing and manufacturing of weldments and the quality of welding structures. Use performance. The working stress distribution state of the welded joint has a significant impact on the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D10/00
CPCC21D10/00Y02P10/20
Inventor 胡效东祁祥松姜蓉
Owner SHANDONG UNIV OF SCI & TECH
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