Method for welding titanium and titanium alloy and steel or stainless steel

By using argon arc welding between titanium alloy and steel or stainless steel, and using alloys with mixed metal elements as the transition layer, the problem of difficulty in welding titanium alloy and other metals in the prior art is solved, and efficient and reliable welding effect is achieved.

CN119703488AActive Publication Date: 2025-03-28DALIAN SHIPBUILDING INDUSTRY CO LTD +1
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Patent Information

Application Number
CN202411873820.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-03-28
Estimated Expiration
2044-12-19

AI Technical Summary

Technical Problem

It is difficult to effectively weld titanium alloys and steels or stainless steels in the prior art, especially in complex curved surfaces or small areas, and traditional welding methods are prone to form intermetallic brittle compounds, resulting in poor binding strength and reliability.

Method used

By argon arc welding, an alloy material with mixed metal elements is welded as a transition layer between titanium alloy and carbon steel or stainless steel to form a composite material that is metallurgically combined, avoiding the formation of intermetallic brittle compounds.

Benefits of technology

It realizes efficient fusion welding of titanium alloys and steel or stainless steel, and can weld and connect composite materials with different shapes and complex curves, improving bonding strength and reliability.

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Abstract

According to the welding method for the titanium and the alloy thereof and the steel or the stainless steel, the titanium and the alloy thereof are metallurgically bonded with the steel or the stainless steel through alloy of metal mixed elements, and metallurgical bonding is achieved in an argon arc welding mode. The alloy of the metal mixed elements comprises the following chemical components in percentage by weight: 20%-80% of copper, 1%-70% of nickel, 1%-20% of iron, 0.001%-0.2% of carbon, 0.02%-0.3% of cobalt, 0.5%-2.0% of manganese and 0.1%-30% of zinc. According to the process method, manual argon arc wire filling welding is adopted, the welding process method is simple and easy to implement, the mixed element alloy welding wire for the transition layer is free of Be and Ti components, special control is not needed in the welding process, and intermetallic brittle compounds cannot be formed. Titanium alloy and steel or stainless steel composite materials with different shapes and complex curved surfaces can be welded and connected.
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