A process for surface hardening steel in which the surface of the steel is heated to an austenitic condition, by eddy currents from an inductor coil carrying a high-frequency alternating current, and then quenched immediately to form martensite. The depth of hardening achieved can be modified by changing the frequency of the inductor coil current. To obtain sufficient hardness the steels hardened in this manner usually contain at least 0.3%C.
A form of hardening in which the heating is done by induced electrical current.
Process of hardening the surface of a casting be heating it above the transformation range by electrical induction, followed by rapid cooling.
Heat treatment by means of an induced current and subsequent rapid cooling.
The localised surface heating of a medium carbon steel by an induction coil so that the temperature is raised above 900oC. The part is quenched (or self-quenches by virtue of the remaining cool bulk of the component) and tempered to produce a hard martensitic structure at the surface.
An electrical process of heat treating, where a camshaft is passed through a coil, through which a high frequency current is passed. The camshaft inside the coil is quickly heated to a cherry red and quenched in oil. Ivan Tighe Engineering hardens all new camshafts using this process.
A widely used process for the surface hardening of steel. The components are heated by means of an alternating magnetic field to a temperature within or above the transformation range followed by immediate quenching. The core of the component remains unaffected by the treatment and its physical properties are those of the bar from which it was machined, whilst the hardness of the case can be within the range 37/58 Rc. Carbon and alloy steels with a carbon content in the range 0.40/0.45% are most suitable for this process.
Quench hardening in which the heat is generated by electrical induction. (2) A process of hardening a ferrous alloy by heating it above the transformation range by means of electrical induction, and then cooling as required.
A process of hardening the surface of a part by placing electric coils next to it.
Induction Hardening is form of heat treatment in which a metal part is heated inductively and then quenched. The quenched metal undergoes a martensitic transformation, increasing the hardness and brittleness of the part. Induction hardening is used to selectively harden areas of a part or assembly without affecting the properties of the part as a whole.
