Aluminum alloy 7075, around since the 1940s, is a promising lightweighting alloy because it is almost as strong as steel but one-third the weight. The problem is that it was not weldable … until now. UCLA engineers have developed a process that produces good weld strength by adding tiny titanium-carbide nanoparticles into the 7075 welding rods.
Welding the Unweldable
April 25, 2019