Instrumentation for Magnetic Pulse Metal Forming

Magnetic pulse metal forming results from kinetic energy imparted to a metallic workpiece by a magnetic pulse. Control and measurement of this energy is purely electrical. Once the parameters are established for a particular magnetic pulse forming application, the process can be monitored by a single voltage measurement. Because of general freedom from mechanical inertia, high repetition rates (for example, 16 operations per second) and microsecond capabilities can be built into the machines. Measurements of pressure on the workpiece can be derived directly from the value of the magnetic field at the surface of the metal by relatively simple equipment.