this process used to join metal tubes and fitting toghether in aircraft industry
Electromagnetic forming (EM forming or Magneforming) is a type of high energy rate metal forming process that uses pulsed power techniques to create ultrastrong pulsed magnetic fields to rapidly reshape metal partsThe technique is sometimes called high velocity formingThe forming process is most often used to shrink or expand cylindrical tubing, but it can also form sheet metal by repelling the work piece onto a shaped die at a high velocitySince the forming operation involves high acceleration and deceleration, mass of the work piece plays a critical role during the forming processThe process works best with good electrical conductors such as copper or aluminum, but it can be adapted to work with poorer conductors such as steelsource:wikipedia
