Post Weld Heat Treatment
Post Weld Heat Treatment (PWHT) is the heating process carried out after welding is complete. In some cases, an intermediate bake-out / de-gas will be performed if not going directly into the stress relieving phase.
Post Weld Heat Treatment (PWHT) is the heating process carried out after welding is complete. In some cases, an intermediate bake-out / de-gas will be performed if not going directly into the stress relieving phase.
Cryogenics is generally used as a stage in particular hardening processes. Tempering and ageing are usually low-temperature final stages in a hardening process.