Induction welding is a form of welding that uses electromagnetic
induction to heat the workpiece.
The welding apparatus contains an induction coil that is energised with a
radio-frequency electric current . This
generates a high-frequency electromagnetic field that acts on either an
electrically conductive or a ferromagnetic workpiece. In an electrically
conductive workpiece, the main heating effect is resistive heating, which is due
to induced currents called eddy currents. In a ferromagnetic workpiece, the
heating is caused mainly by hysteresis, as the electromagnetic field repeatedly
distorts the magnetic domains of the ferromagnetic material. RVmagnetics
MicroWire sensor is essentially a metallic alloy with glass
coating. To melt the alloy we also use an induction method of melting it.