Induction heating is the process of heating electrically conductive materials, namely metals or semi-conductors, by electromagnetic induction, through heat transfer passing through an inductor that creates an electromagnetic field within the coil to heat up and possibly melt steel, copper, brass, graphite, gold, silver, aluminum, or carbide.
Component of Stirling radioisotope generator is heated by induction during testing
Induction heating of 25 mm metal bar using 15 kW at 450 kHz.
Keeping silicon in crucible molten at 2,650 °F (1,450 °C) for Czochralski crystal growth, 1956.
Electromagnetic induction
Electromagnetic or magnetic induction is the production of an electromotive force (emf) across an electrical conductor in a changing magnetic field.
A current clamp
Image: Hawkins Electrical Guide Figure 292 Eddy currents in a solid armature
Image: Hawkins Electrical Guide Figure 293 Armature core with a few laminations showing effect on eddy currents
Image: Small DC Motor pole laminations and overview