Induction hardening is a heat treatment done on steel to improve hardness and resistance to wear, fatigue and damage to the material. The process takes place in two phases:
- a very fast heating,
- an immediately following one of rather abrupt cooling.
This sudden temperature change creates
martensite, an extremely hard material with good mechanical resistance.
Press quenching is a phase subsequent to quenching which allows to maintain the geometry of the piece by eliminating the deformations of the free quenching.