Magnetic Pulse System

Metal tube fitting by compression

Magnetic Pulse System (MPS), or Technologie par Impulsion Magnétique (TIM), is an innovative process which uses an intense pulsed magnetic field to "move" a metallic part through the discharge of electrical current into a coil. An eddy current is created in the conductive workpiece, and consequently, a repulsive magnetic pressure rises and push the workpiece away from the coil at speeds greater than 300 m/s.

This technique allows to achieve crimping (with a null sringback), welding, forming or cutting.

This increasingly popular technique based on the use of electromagnetic forces ( Lorentz force) can be used with a wide range of metals. Even non-magnetic metal (aluminum, copper, etc.) can be worked, because the Eddy currents induced in the parts are only temporary (one pulse).

This technology is a technological breakthrough that allows assemblies or shapes that used to be impossible to achieve, in a clean, stable, very efficient and very cheap way. As an example, a 30KJ pulse costs about € 0.0012...

Principle of operation

Electrical energy is stored in capacitors and then discharged through low inductance switches into a coil in microseconds.