A few weeks ago, a tiny gallery in London was transformed into a scene straight out of the 19th century. Amid piles of sand, a worker donned a silver apron and safety helmet and poured molten hot steel down a track to create long slabs of metal. The man in the apron was Raphael Hefti—not an industrial worker, but an… »
By now we all know that graphene has tons of potential applications, from virtually no-light camera sensors, to terabit upload speeds, to all your wildest dreams. Now, researchers have figured out how to chemically spot-weld graphene, wiring tiny graphene structures to real electronics with one-atom wires.
GE has a new 20kW hybrid laser arc welding (HLAW) system that's a lot more advanced than the welding methods we have now. Comparatively speaking, the new GE laser wields enough power to weld one-inch thick steel in a single pass. Current welding technologies need up to a half dozen passes. »