Device and method for controlling deformation of thin plate with welding combined with dynamic thermal stretching and chilling

A technology of deformation control and thermal stretching, which is applied in the direction of manufacturing tools, welding equipment, welding/welding/cutting items, etc., can solve the problems of complexity, large temperature difference stretching device, limited application, etc., and achieve small heating area and high energy consumption. Easy to adjust, control the effects of buckling instability and bending deformation

Active Publication Date: 2018-02-13
CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual production, it is necessary to install a temperature difference stretching device on the weld to be welded in advance, and the temperature difference stretching device for curved surface welds and longitudinal welds is more bulky and complicated, which limits the application of this method in the field of shipbuilding

Method used

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  • Device and method for controlling deformation of thin plate with welding combined with dynamic thermal stretching and chilling
  • Device and method for controlling deformation of thin plate with welding combined with dynamic thermal stretching and chilling
  • Device and method for controlling deformation of thin plate with welding combined with dynamic thermal stretching and chilling

Examples

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Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1, thin plate with welding deformation control device

[0048] refer to figure 1 and figure 2 In this example, the thin plate welding deformation control device combined with dynamic thermal stretching and chilling includes a walking module 1, a connecting device 2 and a welding deformation control module 3, and the walking module 1 carries the welding deformation through the connecting device 2 control module 3. Wherein, the walking module 1 is an automatic walking trolley, which includes a body 11 and a connecting device mounted vertical pipe 12 arranged on it, and the body 11 is provided with a counterweight to ensure the stability of the welding deformation control module 3 during the working process. The walking module 1 can move automatically and the speed can be adjusted, and the walking direction is the same as the longitudinal direction of the welding seam.

[0049] like figure 1 and image 3 As shown, the connecting device 2 includes a first l...

Embodiment 2

[0068] Embodiment 2. Method for controlling deformation of curved thin plates with welding (butt welding of equal thickness curved thin plates)

[0069] The method for controlling deformation of a thin plate with welding in combination with dynamic thermal stretching and chilling of the present invention comprises the following steps:

[0070] (1) Butt the first curved surface thin plate 4 and the second curved surface thin plate 5 of two aluminum alloys with equal thickness of 3mm to be welded, such as Figure 10 As shown, according to the material and thickness process requirements of the thin plate to be welded, the material, thickness and size of the arc starting plate 91 and the arc extinguishing plate 92 are determined, and the arc starting plate 91 and the arc extinguishing plate 92 are fixed on such as Figure 10 location shown.

[0071] (2) Place the self-propelled trolley on the side of the weld so that the traveling direction of the self-propelled trolley is parall...

Embodiment 3

[0077] Embodiment 3, thin plate with welding deformation control method (unequal thickness thin plate welding)

[0078] (1) Butt the third flat plate 6 of 5 mm and the fourth flat plate 7 of 3 mm to be welded, and the material is aluminum alloy. like Figure 11 As shown, the arc starting plate 91 and the arc extinguishing plate 92 are fixed on such as Figure 11 location shown.

[0079] (2) Place the self-propelled trolley on the side of the weld so that the traveling direction of the self-propelled trolley is parallel to the longitudinal direction of the weld. Twist the first horizontal adjustment knob 222 and the second horizontal adjustment knob 242 so that the center of the welding torch 322 is located on the arc strike plate 91 and is directly opposite to the center of the welding seam. Adjust the distance between the dynamic thermal stretching module 31 , the welding torch module 32 and the cooling module 8 with welding, and the vertical height between them and the fi...

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Abstract

The invention relates to a device and a method for controlling deformation of a thin plate with welding combined with dynamic thermal stretching and chilling. The thin plate welding deformation control device includes a walking module, a connecting device and a welding deformation control module. The walking module carries the welding deformation control module through the connecting device; A dynamic thermal stretching module, a welding torch module, and a welding quenching module are arranged in sequence, and the dynamic thermal stretching module can realize double TIG electric arc parallel lateral swing heating. The method for controlling the deformation of the thin plate with welding uses a TIG arc to perform dynamic thermal stretching on both sides of the weld seam before welding, welds the weld seam, and then uses a chilling medium to chill the weld seam. The invention has compact overall structure and small size, and on the basis of ensuring the quality of the welding seam, it can not only reduce the welding residual stress level, but also can well control buckling instability and bending deformation.

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 controlling deformation of a thin plate with welding combined with dynamic thermal stretching and chilling. Background technique [0002] High-speed aluminum ships are mainly welded by aluminum alloy sheets with a thickness of 3 to 5 mm. The welding residual tensile / compressive stress is relatively high. If the critical buckling buckling stress of the hull panel is exceeded, buckling buckling deformation of the hull will occur. Especially after butt welding of sheets with different thicknesses, the thinner sheet side is prone to buckling deformation, and the thicker sheet side is prone to buckling instability and bending deformation. In order to solve the above problems, subsequent methods such as post-weld flame straightening and arc straightening are often used in actual production, but these methods will reduce material pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K31/00B23K101/18B23K103/10
CPCB23K31/003B23K2101/18B23K2103/10
Inventor 闫德俊蒋佳霖王旭钟美达罗玖强杨建国田鹏
Owner CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY
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