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Double-sided laser titanium-steel clad plate full penetration welding method based on transition layer control

A welding method and composite plate technology, applied in laser welding equipment, welding equipment, welding/welding/cutting items, etc., can solve the problems of complicated welding process operation, large welding stress and deformation, large accumulated heat input, etc. Efficiency and quality, improved toughness, simplified welding technology

Active Publication Date: 2017-02-22
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of complex welding process operation, large cumulative heat input, large welding stress deformation and low welding efficiency in the existing titanium steel clad plate welding, and then provide a double-sided laser based on transition layer control Full penetration welding method of titanium steel clad plate

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  • Double-sided laser titanium-steel clad plate full penetration welding method based on transition layer control
  • Double-sided laser titanium-steel clad plate full penetration welding method based on transition layer control

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Embodiment Construction

[0029] A specific embodiment of the present invention is: the size specification of the titanium-steel clad plate used is 3mm+3mm, which is obtained by rolling.

[0030] The method for full penetration welding of the titanium-steel clad plate includes the following steps:

[0031] 1) Processing welding groove: at the composite transition line of the welding section of the titanium steel clad plate to be welded, process a semi-elliptical groove along the length direction of the composite transition line, and the depth of the groove is a semi-elliptical short 1 / 2 of the axis a, the major axis b of the semi-ellipse is perpendicular to the bonding surface between the titanium coating of the titanium-steel composite plate to be welded and the steel base, the minor axis a of the semi-ellipse is 1-1.6mm, and the major axis b=1-2mm; the titanium-steel composite plate to be welded after processing the groove is as figure 1 shown.

[0032] 2) Clean up the welding area: clean the groov...

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Abstract

Provided is a double-sided laser titanium-steel clad plate full penetration welding method based on transition layer control. The method is suitable for welding of titanium-steel clad plates. The double-sided laser titanium-steel clad plate full penetration welding method based on transition layer control is provided in order to solve the problems that in the existing titanium-steel clad plate welding process, operation is complex, accumulated heat input is large, welding stress deformation is large, and the welding efficiency is low. The method comprises following steps that 1, semi-elliptical groove is prepared along a titanium-steel clad plate interface; 2, a welding area is cleaned; 3, a transition layer is prepared, wherein the transition layer is prepared by mixing a certain proportion of metal powder to be uniform; 4, laser welding is conducted on both sides, wherein after assembling and clamping are conducted, the titanium-steel clad plate is preheated to 100 DEG C to 120 DEG C, synchronous welding is conducted on the two sides with laser, and when welding is conducted, metal on the two sides is merged uniformly by controlling the linear energy. According to the double-sided laser titanium-steel clad plate full penetration welding method based on transition layer control, by means of control of the transition layer, the mechanical property of a welded joint of the titanium-steel clad plate is improved, an existing welding technology is simplified, and high-quality and high-efficiency welding is achieved.

Description

technical field [0001] The invention relates to a full-penetration welding method for a double-sided laser titanium-steel composite plate based on transition layer control, and belongs to the field of welding technology. Background technique [0002] Because of its very high affinity for oxygen, metal titanium can form a dense oxide film on its surface, which can protect titanium from medium corrosion. Therefore, titanium has good stability and corrosion resistance in acidic, alkaline, neutral saline solution and oxidizing medium. Titanium alloys are widely used in petroleum, chemical industry, metallurgy, seawater desalination shipbuilding, electric power and marine engineering and other industries. However, the cost of titanium alloy is relatively high. Combining titanium with other metals to make a metal composite material can not only exert the excellent performance of titanium, but also reduce costs. Titanium-steel composite material is such a material. The titanium-s...

Claims

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Application Information

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IPC IPC(8): B23K26/211B23K26/60B23K26/12B23K103/24
CPCB23K26/123B23K26/211B23K26/60B23K2103/24
Inventor 陈勇陈辉杨涛苟国庆李仁东
Owner SOUTHWEST JIAOTONG UNIV
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