2 ms·
The kickass aluminum welding process doesn't melt aluminum at all. It's called friction stir welding. Invented in the UK in the 1990s, it involves moving a ro
by pfdietz 2y ago
The kickass aluminum welding process doesn't melt aluminum at all. It's called friction stir welding. Invented in the UK in the 1990s, it involves moving a rotating tool through the aluminum. The rotation softens and mixes the solid metal, refining the grain structure and blending the two pieces together. It's what SpaceX uses to weld the tanks on the Falcon 9.