omsättningshärdning
Omsättningshärdning, also known as tempering or case hardening, is a surface heat treatment process used to harden the outer layer of steel while leaving the core relatively soft and ductile. This is achieved by heating the steel to a specific temperature, typically above its critical transformation temperature, and then rapidly cooling it in a quenching medium such as oil or water. The rapid cooling causes the surface layer to transform into a hard, brittle structure called martensite.
Following the quenching process, the steel is subjected to a tempering heat treatment. This involves reheating
Omsättningshärdning is commonly applied to components that require a hard, wear-resistant surface, such as gears, shafts,