Cold welding is a technique for joining two metals by pushing them together using high pressure. Credit: ISS National Laboratory A SpaceX Dragon cargo ship delivered a cold welding experiment to the ...

One of the key engineering requirements in several applications is the control of friction. Under low pressures, films on metals lost due to friction or other effects are not replaced. Consequently, ...

While arc welding has been used for decades to join metal parts on everything from cars to boats to airplanes, the basic technology behind this multi-billion dollar industry has changed little since ...