Welding deformation control method of titanium alloy thick plate

A welding deformation and control method technology, applied in welding equipment, welding accessories, manufacturing tools, etc., can solve problems such as welding deformation, achieve the effects of preventing oxidation and high-temperature hydrogen absorption, reducing the amplitude, and solving welding deformation

Active Publication Date: 2020-02-07
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Abstract
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Problems solved by technology

[0003] In order to solve the above technical problems, the present invention provides a method for controlling welding deformation of titanium alloy thick plates to solve the problem of welding deformation caused by welding titanium alloy thick plates

Method used

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  • Welding deformation control method of titanium alloy thick plate
  • Welding deformation control method of titanium alloy thick plate
  • Welding deformation control method of titanium alloy thick plate

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Embodiment Construction

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited by the accompanying drawings and specific embodiments.

[0028] figure 2 It is a schematic diagram of the structure of the part to be welded in the present invention, as shown in the figure, the part to be welded includes two parts, the supporting point 6 and the flange edge 7, figure 1 Schematic diagram of pre-grooving for the joint between the support point and the flange edge, such as figure 1 As shown, the joint between the support point 6 and the flange edge 7 is pre-grooved.

[0029] image 3 It is a top view of the welding limiting device of the present invention, Figure 4 It is the front view of the welding limiting device of the present invention, Figure 5 It is a schematic diagram of the installation of parts to be welded in the present invention, Image 6 It is ...

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Abstract

The invention relates to the technical field of welding deformation control, in particular to protection and deformation control over thick plate titanium alloy welding by mounting a supporting pointassembling unit. The protection and deformation control over thick plate titanium alloy welding is used for welding supporting points and flange edges to realize welding deformation control from two aspects, a welding limiting device is used in a combined mode, and a multilayer automatic argon arc welding method is adopted. The welding limiting device is adopted, a limiting base and a pressing plate limit the positions of the flange edges from a horizontal direction and a vertical directions separately, the supporting points are fixedly arranged in a limiting groove, argon spilling from vent hole protect welding lines and the back of a heat-affected zone to prevent oxidation, the vent holes of a honeycomb structure disperse the argon gas flow to prevent the situation that welding line burn-through defects are caused due to the fact that the strong air flow disperses a weld pool, the front side and the back side of the welding lines are well protected, the welding line defects caused byoxidation and high temperature hydrogen absorption can be effectively prevented so as to realize smaller heat input and reduce the amplitude of welding line deformation, and welding deformation is reduced with smaller welding heat input and the welding limiting device.

Description

technical field [0001] The invention relates to the technical field of welding deformation control, in particular to the protection and deformation control of a mounting bracket assembly for thick-plate titanium alloy welding. Background technique [0002] Due to the high specific strength of titanium alloy materials, it has been used more and more. However, in the process of welding titanium alloy, as the temperature rises, the ability to absorb hydrogen, oxygen or nitrogen becomes stronger, which will cause embrittlement of the welded joint and affect the performance of the weld. The elastic modulus of titanium alloy is small, and the welding residual stress is relatively large. Large, welding deformation is easy to occur, and it is not easy to correct after welding deformation. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the present invention provides a method for controlling welding deformation of titanium alloy thick p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/16B23K9/235B23K9/32
CPCB23K9/16B23K9/235B23K9/325
Inventor 桑青李晓光潘士建单易
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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