Method for manufacturing multilayer composite aluminum/steel transition joint

Abstract

The invention discloses a method for manufacturing a multilayer composite aluminum / steel transition joint. The transition joint comprises a multilayer composite metal layer, wherein the multilayer composite metal layer sequentially comprises an alloy aluminum layer, a titanium layer, a copper-nickel alloy layer and a steel layer, or an aluminum layer is added between the alloy aluminum layer and the titanium layer, wherein the layers are connected in an explosive welding mode; the thicknesses of the layers are different and range from 0.5 to 20mm and the total thickness of the layers is 10 to 60mm; and the layers are strip, blocky, platy, annular, round or rectangular. Multilayer composite metal is taken as an aluminum / steel transition structural material, and the layers are connected in the explosive welding mode, so that the comprehensive performance of the aluminum / steel transition material is effectively improved.

Description

technical field [0001] The invention relates to the field of an aluminum / steel transition connection structure applied to large and medium-sized ships, aviation and spacecraft, in particular to the field of aluminum / steel structure transition connection, a manufacturing process and method of a multilayer composite aluminum / steel transition connection material . Background technique [0002] The demand for aluminum / steel transition connections exists in various industries, such as: electrolysis, petroleum, chemical industry, electric power, aviation, aerospace and shipbuilding and other industries. [0003] In the traditional earlier shipbuilding industry, the aluminum / steel transition connection in the construction of civilian ships and small ships was mainly carried out by rivet riveting and bolt crimping. [0004] In order to "reduce weight, lower the center of gravity, improve stability, and increase speed", the superstructure of ships around the 1980s gradually began to...

AI Technical Summary

Problems solved by technology

[0007] Early aluminum / steel, aluminum / aluminum / steel, aluminum / titanium / steel combinations, and aluminum / steel transition joints manufactured by explosive welding, in terms of their performance, have been comprehensively analyzed through years of experience in use, manufacturing, and research and development. There are safety hazards in performance and usability, as well as many problems such as low welding temperature resistance and poor fatigue performance.

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