Nanotechnology enables engineers to weld previously un-weldable aluminum alloy

An aluminum alloy developed in the 1940s has long held promise for use in automobile manufacturing, except for one key obstacle. Although it's nearly as strong as steel and just one-third the weight, it is almost impossible to weld together using the technique commonly used to assemble body panels or engine parts.
Read more: https://phys.org/news/2019-01-nanotechnology-enables-weld-previously-un-weldable.html?source=Snapzu