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Laser brazing method of titanium alloy-stainless steel dissimilar metals using copper-based solder

A technology of copper-based solder and brazing method, which is applied in the direction of metal processing equipment, welding equipment, welding/welding/cutting items, etc., to achieve the effects of stable process, beautiful weld shape and good welding process performance

Active Publication Date: 2021-09-07
XINJIANG UNIVERSITY
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  • Abstract
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Problems solved by technology

Although its brittleness is lower than that of Ti-Fe intermetallic compounds, it still increases the risk of brittle fracture of joints

Method used

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  • Laser brazing method of titanium alloy-stainless steel dissimilar metals using copper-based solder
  • Laser brazing method of titanium alloy-stainless steel dissimilar metals using copper-based solder
  • Laser brazing method of titanium alloy-stainless steel dissimilar metals using copper-based solder

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Embodiment Construction

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] Please combine Figure 1-5 , the present invention provides the following technical solutions:

[0025] A titanium alloy-stainless steel dissimilar metal laser brazing method adopting copper-based brazing material is carried out according to the following process steps:

[0026] (1) Joint form: The joint form is I-shaped groove butt joint, and the thickness of copper-based solder is 0.2mm. When assembling and clamping, ensure that there is a certain pre-tightening for...

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Abstract

The invention relates to a laser brazing method of titanium alloy-stainless steel dissimilar metals using copper-based solder in the technical field of laser gun welding, aiming at the problem of brittle Ti-Fe intermetallic compounds produced during the welding process of titanium alloy-stainless steel dissimilar metals, using The laser is used as the welding heat source, and the copper-based solder is used as the intermediate layer material. The formation of Ti-Fe intermetallic compounds during the titanium alloy-stainless steel welding process is avoided by laser brazing, which reduces the brittleness of the joint and improves the performance of the joint. Using laser single-pass welding, obtain high-quality, high-efficiency welded joints of dissimilar metal materials including stainless steel fusion welds, unmelted stainless steel and brazed welds. The present invention is a titanium alloy-stainless steel dissimilar metal laser brazing method using copper-based brazing material. The beam is focused on the stainless steel plate for welding at 1.5mm to achieve the connection of titanium alloy-stainless steel dissimilar metals.

Description

technical field [0001] The invention relates to the technical field of laser welding, in particular to a titanium alloy-stainless steel dissimilar metal laser brazing method using copper-based solder. Background technique [0002] Titanium and its alloys have been widely used in various industrial fields due to their advantages of high strength, high toughness, low density, high temperature resistance and good corrosion resistance. However, the high cost of titanium alloys, poor weldability, poor processability, and poor creep resistance limit the application of titanium alloys. Stainless steel is currently the most commonly used structural material. It has a series of excellent properties, such as weldability, wear resistance, and mechanical properties, and its cost is relatively low. If titanium alloy and stainless steel are connected together by welding, the welded structure of titanium alloy and stainless steel combines the good weldability of stainless steel with the e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K1/00B23K1/005B23K103/24
CPCB23K1/0008B23K1/0056B23K2103/24
Inventor 张岩周建平陈言坤高一迪毕元波
Owner XINJIANG UNIVERSITY
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