Aluminum alloy welding wire and manufacturing method thereof

Abstract

The invention relates to an aluminum alloy welding wire and a manufacturing method thereof. The aluminum alloy welding wire is prepared from the following elements in percentage by weight: 0.01 percent to 0.15 percent of iron, 0.01 percent to 0.12 percent of silicon, 0.01 percent to 0.1 percent of copper, 0 percent to 0.009 percent of scandium, 0.02 percent to 0.22 percent of manganese, 4.5 percent to 5.5 percent of magnesium, 0 percent to 0.009 percent of chromium, 0.01 percent to 0.18 percent of zinc, 0 percent to 0.003 percent of titanium, 0.001 percent to 0.03 percent of lithium, 0.001 percent to 0.01 percent of boron, 0 percent to 0.02 percent of vanadium, 0.005 percent to 0.009 percent of zirconium, 0.002 percent to 0.009 percent of cerium, 0.001 percent to 0.008 percent of yttrium,0.0001 percent to 0.002 percent of nickel, 0.0001 percent to 0.008 percent of strontium, 0.0001 percent to 0.009 percent of ytterbium, 0.0003 percent to 0.002 percent of neodymium, 0.0001 percent to 0.03 percent of niobium, and the balance aluminum. Compared with the prior art, according to the aluminum alloy welding wire and the manufacturing method thereof provided by the embodiment of the invention, the performance and the quality of the aluminum alloy welding wire can be remarkably improved, and the manufacturing cost of the aluminum alloy welding wire is comprehensively reduced.

Description

technical field [0001] The invention belongs to the field of metal materials, and relates to an aluminum alloy welding wire and a manufacturing method thereof. Background technique [0002] With the continuous development and upgrading of core key areas such as new energy, automobiles, ships, rail transit, electronics, construction, and aerospace, the requirements for lightweight and integration continue to increase, and the application of aluminum alloy materials is an inevitable trend. [0003] Welding is an important way to connect and combine aluminum alloy components or structural parts. In the case of a certain aluminum alloy matrix material, the performance of the weldment mainly depends on the welding process and welding wire. [0004] When welding aluminum alloy materials, the welding wire is used as a filler metal or as a conductive material at the same time, which is the most important factor affecting the weld metal composition, structure, thermal cracking of the...

AI Technical Summary

Problems solved by technology

First of all, the initial investment required by the traditional process method is large, and the equipment investment required is relatively large, and the equipment occupies a large area.

Secondly, the production cost of the traditional process method is high, the process is cumbersome, the production speed is slow, the material loss, tool consumption, production energy consumption and labor intensity are high

Furthermore, the surface treatment involved in the production of traditional craft methods is polluting to the environment

The biggest shortcoming of the traditional process method is that it can produce welding wire made of pure aluminum material more stably, but the performance of the aluminum alloy welding wire produced cannot meet the requirements of practical applications, mainly because the composition and structure of the alloy welding wire cannot be effectively controlled, which affects the mechanical properties of the welding wire. The performance and welding performance are poor. At the same time, the surface finish, cleanliness, uniformity of wire diameter, wire pitch and helicity cannot be guaranteed. The product has serious quality instability problems and low yield. It is difficult to meet the requirements of automatic continuous welding. requirements

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