Self-supporting device and method for controlling root gap and welding deformation of suspended weld seam

A technology of welding seam root and welding deformation, which is applied in the direction of auxiliary equipment, welding equipment, welding equipment, etc., can solve the problems of reducing production efficiency, and achieve the effect of improving production efficiency, high work efficiency and beautiful shape

Active Publication Date: 2017-04-19
CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the entire welding process, the production efficiency is greatly reduced due to additional processes such as spot welding, welding and removal of clips and angle aluminum, grinding and shaping of the back of the weld, and post-welding correction.

Method used

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  • Self-supporting device and method for controlling root gap and welding deformation of suspended weld seam
  • Self-supporting device and method for controlling root gap and welding deformation of suspended weld seam
  • Self-supporting device and method for controlling root gap and welding deformation of suspended weld seam

Examples

Experimental program
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Effect test

Embodiment 1

[0054] The self-supporting device for controlling the gap at the root of the suspended weld and welding deformation according to the present invention includes a positioning block 2, an upper rigid pressing block 3, a lower rigid pressing block 5 and a forming groove 6, and a groove is provided in the middle of the forming groove 6 61, the groove 61 is provided with a limit groove 62, the positioning block 2 includes a positioning block body and a positioning part, and the positioning part includes the first-level protrusion 21 on the positioning block body and the first-level The second-stage protruding part 22 on the protruding part 21, the shape of the first-stage protruding part 21 matches the weld root gap 11, and fits in the weld root gap 11, and the limiting groove The shape of 62 is matched with the second-stage protruding portion 22, and the second-stage protruding portion 22 is fitted in the limiting groove 62; the upper rigid pressure block 3 is symmetrically install...

Embodiment 2

[0063] In this embodiment, the device and welding method for self-supporting and controlling the gap at the root of the suspended weld seam and welding deformation are basically the same as in Embodiment 1, but the contact surfaces of the positioning block and the upper and lower rigid pressure blocks are all curved surfaces, so as to be used for welding of curved surface parts , the schematic diagram of the welding process is shown in figure 1 shown. In this embodiment, the thickness of the hull side plate is 4mm, and the butt welding part is a curved surface. Install the square positioning block whose contact surface is a curved surface, the upper and lower rigid pressing blocks, and the forming groove in sequence, and turn on the magnet. The magnets inside the upper and lower rigid pressing blocks will produce an anisotropic magnetic force. Strong pressure restraint, and then start TIG wire filler welding, because there is a forming groove below, the TIG welding single-sid...

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Abstract

The invention discloses a self-supporting device and method for controlling the gap at the root of a suspended weld seam and welding deformation. The device includes a positioning block, an upper rigid pressing block, a lower rigid pressing block and a forming groove, and the positioning block includes a positioning block main body and a positioning part; the positioning part passes through the weld root gap and is embedded in the forming groove; the upper rigid pressing block is symmetrically installed on both sides of the positioning block main body, and the lower rigid pressing block has an inner concave part matching the forming groove , the forming groove is installed in the inner recess; the upper rigid pressing block and the lower rigid pressing block are equipped with magnets inside. The invention also discloses a welding method using the self-supporting device for controlling the root gap and welding deformation of the suspended welding seam of the invention. The self-supporting device for controlling the root gap and welding deformation of suspended welds is easy to use, low in cost, and strong in adaptability. It can not only control the lateral shrinkage and misalignment of welds, reduce welding deformation, but also ensure that the back of the weld is well formed.

Description

technical field [0001] The invention belongs to the technical field of ship assembly and welding, and in particular relates to a device and method for self-supporting and controlling the gap at the root of a suspended weld seam and welding deformation. Background technique [0002] High-speed ships at home and abroad are mainly welded by aluminum alloys. Because the elastic modulus and yield strength of aluminum alloys are small at temperatures above 200 to 300 degrees Celsius, the deformation resistance is poor; and the thermal conductivity and thermal expansion coefficient of aluminum alloy materials are large. , the welding high-temperature zone is wide, and the welding stress and deformation are relatively large. As a result, when these aluminum hulls are assembled and closed and other suspended positions are welded, the lateral shrinkage of the weld and the welding deformation are much larger than those of the steel section. Orthopedic treatment is required after weldin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/00B23K37/04
CPCB23K9/167B23K37/04B23K37/0443B23K2103/10
Inventor 闫德俊罗玖强刘晓莉陈红亮李武凯
Owner CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY
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