Electromagnet Induction Heating

In 1831, Michael Faraday built upon the findings of Hans Christian Oersted and Andre-Marie Ampère to discover induction heating. Induction heating negates the need for an object to come into contact with a direct source of heat; instead it circulates electrical currents for increased reliability and control. Induction heating can be used to make metal malleable enough to shape, solder parts together, and create high-temperature alloys. It is highly adjustable and produces identical results when used for industrial purposes.



An induction heater requires an electromagnet, and an electronic oscillator. An electromagnet creates a magnetic field when introduced to an electric current and an electronic oscillator converts direct current to an alternating current. The alternating magnetic field generates electric currents within the conductor called eddy currents. An important fact to note is that the heat is generated inside the object and not the outside.
Induction heating is used in gaseous conductors