Inductive surface hardening is a process in which only the surface layer of the component in the desired thickness is heated by eddy currents and subsequently hardened. The thickness of the layer is, if desired, within the range from a few tenths of a millimetre to several millimetres. The result is a hard surface layer on the tough core of the component. The most common components this process is used for are camshafts, hydraulic pistons, gearboxes, shaft diameters for bearings, and the like.
This process is carried out with the GV 80 (80 KW / 250 KHz) high-frequency machine and the Martenzit SP-01-14Q CNC medium-frequency aggregate.