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A method for controlling welding deformation 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, high-temperature hydrogen absorption, small heat input, and ensuring welding quality

Active Publication Date: 2021-10-22
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Abstract
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  • Application Information

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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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  • A method for controlling welding deformation of titanium alloy thick plate
  • A method for controlling welding deformation of titanium alloy thick plate
  • A method for controlling welding deformation 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, Figure 6 It is...

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Abstract

The invention relates to the technical field of welding deformation control, in particular to the protection and deformation control of thick-plate titanium alloy welding by installing a supporting point assembly, which is used for welding supporting points and flange edges, and realizes the control of welding deformation from two aspects. The limit device adopts the multi-layer automatic argon arc welding method. The welding limit device is adopted, the limit base and the pressure plate limit the position of the flange side from the horizontal and vertical directions respectively, the limit groove fixes the mounting point, and the argon shielded welding seam emitted from the vent hole and The back side of the heat-affected zone prevents oxidation, and the air holes of the honeycomb structure disperse the argon gas flow to prevent the welding seam from burning through defects caused by the strong air flow blowing away the molten pool. Seam defects can achieve smaller heat input, reduce the magnitude of welding deformation, and reduce welding deformation with smaller welding heat input and welding limit devices.

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 Patents(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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