Cold Pressure Welding Process Joining process where a large plastic deformation joins together two workpieces without pre-heating.
Diffusion Welding, DFW Process Joining process by heat and pressure where the contact surfaces are joined by diffusion of atoms.
Explosion Welding Process Joining process where two metal sheets are welded together by the heat and pressure created by an explosive which is detonated above the upper plate.
Friction stir welding, FSW Process Joining process done by rotating a non-consumed tool that creates friction and pressure.