Cold welding metal together on earth

Cold welding is the phenomenon of two pieces of metal fusing on contact. It's a big problem in space, but it can even happen on earth at room temperatures with the right metal, as Cody demonstrates. Read the rest

These inertia friction welding videos are sooooo satisfying

Inertia friction welding joins two metal objects by spinning one at high rates of speed, then pressing it against the stationary piece. The friction heats both pieces and makes a weld sturdy enough for drive shafts, jet engines, spacecraft, and other machinery where joined pieces will endure tremendous stresses. Read the rest

Welding mishap

This welder was perched on a column when the roof collapsed around him. He didn't fall. Read the rest