Case hardening is a thermochemical heat treatment process in which the steel surface is enriched with carbon, yielding a hard surface and a tough core.
Annealing processes are intensive heat treatments. The goal is to obtain specific material properties that are suitable for subsequent processing steps.
Hardening and tempering is a heat treatment process that permeates the entire component to achieve a specified component hardness which is suitable for the intended use.
Blast cleaning results in a measurable increase in the strength of the tooth flanks and tooth root, as well as increased hardness of the toothed parts.
Heat treatment consists of raising the austenitizing temperature followed by quenching that is appropriate for the material and the required properties.
