Engineers at the University of California, Los Angeles, were able to weld an aluminum alloy that was invented in the 40’s and had not yet been welded thanks to nano technology.

Aluminum alloy 7075 (AA 7075) has a steel strength but lighter. However, the welding of this alloy was impossible until now. The 7075 aluminum alloy was very valuable in the 1940s, as it is equally power-efficient with many popular steel sheets available today, with good corrosion resistance and machining, while its weight is one Third is steel weight.

Aluminum 7075 welding is not easy and almost impossible. However, researchers at the University of California, Los Angeles Engineering School have found a way to boil it using nanotechnology. When the AA 7075 is heated at the welding temperature, its molecular structure creates an inconsistent flow of formed elements, which results in the formation of resistance to the alloy and even the under-heating failure. The alloy is from 5.6 to 6.1 percent zinc, 2.1 to 2.5 percent magnesium, 1.2 to 1.6 percent copper and less than half a percent silicon, iron, manganese, titanium, chromium and other metals. Has been.

The researchers used nanoparticles to solve this problem. Using nanoparticles as filler materials between two separate wire of AA 7075, titanium carbide nanoparticles were injected into the alloy. With this, the alloy was not resistant to welding and did not fail. Now with the strength of this alloy and can withstand pressure up to 551 MPa, it can be used in the air industry and can compete with steel.

With a steel alloy that is lighter than steel, manufacturers can produce faster and more efficient vehicles. According to Xiaocheng Li, the main researcher in the study, companies can use the same processes and equipment they use to produce products with this alloy, and their products can be lighter and more energy efficient while maintaining strength and strength.