Contact-free and fast
Electromagnetic forming (EMF) is a high-speed forming technology that can be applied for shaping as well as as for joining and cutting of sheet metal and profile-shaped workpieces made of electrically conductive materials.
In EMF the force application is realized via the energy density of pulsed magnetic fields and does not require any physical contact of tool (inductor) and workpiece. As a consequence of the force application, the workpieces are accelerated up to velocities of several hundreds of meters per second, resulting in strain rates in the magnitude of up to 10,000 s-1. The forming, joining or cutting process is typically completed within some tens of microseconds up to one or two hundreds of microseconds.