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Titanium alloy-stainless steel dissimilar metal laser welding method with composite intermediate layer

A composite intermediate layer, laser welding technology, used in laser welding equipment, welding equipment, metal processing equipment and other directions, can solve the problem of small improvement in the performance of welded joints, and achieve good welding process performance, stable welding process, and weld formation. beautiful effect

Active Publication Date: 2021-09-28
XINJIANG UNIVERSITY
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  • Abstract
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Problems solved by technology

Based on the above two reasons, at present, when the method of adding an intermediate layer is used to melt and weld titanium alloy-stainless steel dissimilar metals, the performance of the welded joint is improved slightly

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  • Titanium alloy-stainless steel dissimilar metal laser welding method with composite intermediate layer
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  • Titanium alloy-stainless steel dissimilar metal laser welding method with composite intermediate layer

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Embodiment Construction

[0022] Next, the technical scheme in the embodiment of the present invention will be described in conjunction with the embodiment of the present invention, which is apparent from the embodiments of the present invention, and not all of the embodiments of the invention, not all of the embodiments of the invention. Based on the embodiments of the present invention, there are all other embodiments obtained without making creative labor without making creative labor premises.

[0023] Please combine Figure 1-4 The present invention provides the following technical solutions:

[0024] A titanium alloy-stainless steel xenograft metal laser welding method for adding composite intermediate layers, according to the following process steps:

[0025] a) Connector: The joint form is the I-shaped port docking. The composite intermediate layer is an explosive welding form. The composite intermediate layer thickness is 4mm, and the group welding clip ensures that there is a certain pre-tension f...

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Abstract

The invention relates to the technical field of laser welding, in particular to a laser welding method for titanium alloy-stainless steel dissimilar metals with a composite intermediate layer. The technology aims at the brittleness of titanium alloy-stainless steel dissimilar metal joints, adopts laser as a welding heat source, and uses TA2 / Q235 explosion The welded composite plate is used as the middle layer. By precisely controlling the welding process parameters, Ti-Fe intermetallic compounds are avoided during the welding process, which reduces the brittleness of the joints. Laser double-pass welding is used to obtain welds containing titanium alloy-TA2 and unmelted TA2 , TA2-Q235 explosive welding interface, high-quality and high-efficiency welded joints of dissimilar metal materials of unmelted Q235 and Q235-stainless steel welds, the process steps of the present invention are: plate assembly and clamping, titanium alloy-TA2 / Q235 Explosive welding compound intermediate layer-stainless steel contact surface preload adjustment, laser welding on titanium alloy-TA2 contact surface and Q235-stainless steel contact surface respectively, to realize the connection of titanium alloy-stainless steel dissimilar metals.

Description

Technical field [0001] The present invention relates to the field of laser welding technology, and in particular to add a compound intermediate layer of titanium alloy-stainless steel xenograft metal laser welding method. Background technique [0002] Due to its advantages such as high toughness, high ratios, good high temperature, low density, anti-fatigue resistance, etc., are widely used in various industrial fields. In aerospace sectors, titanium and their alloys have been used in place of metallic materials such as nickel-based alloys and copper alloys. However, due to the high manufacturing cost of the titanium alloy itself, the welding and machining performance is poor, and the creep resistance is affected by the application. Stainless steel is currently the most commonly used structural material, which own a range of excellent performance, such as weldability, wear resistance, mechanical properties, and relatively low cost. Although stainless steel is far less than titani...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/24B23K26/323B23K103/24
CPCB23K26/24B23K26/323B23K2103/24
Inventor 张岩许燕高一迪陈言坤毕元波
Owner XINJIANG UNIVERSITY
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