Each applies pressure via a pneumatic cylinder and heating via resistance from applied current/voltage. Photo Credit: DLR Institute of Structures and Design and ZLP Augsburg Resistance welding: ...

the joint has to be consolidated under pressure and cooled, either actively using a cooling medium such as compressed air, or passively by convection. Up to now, the standard two-dimensional ...

A welding process uses heat to soften two metals to the point of diffusion ... are exposed to the air. Even if pressure is applied directly to the oxide layer, the pieces won’t weld, regardless of ...