Induction hardening is a heat treatment technique used to selectively harden specific areas of components, such as automobile steering shafts and valve cores. Here’s how it works:
Process Overview:
Induction hardening involves passing an alternating current through a water-cooled copper coil that induces eddy currents in the part’s outer surface.
These eddy currents resistively heat the surface, creating a martensitic layer with improved hardness and wear resistance.
Benefits:
Enhanced mechanical performance near the surface without affecting the core metallurgy.
Improved hardness, wear resistance, and contact fatigue strength.
Application:
Steering shafts and valve cores are critical components in automobiles.
Induction hardening ensures durability and reliability under demanding conditions.
