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Part of the Fundamental Manufacturing Processes Video Series, this program highlights heat treating's versatility in altering the metallurgical properties of metals and alloys. This versatility is broken down into three groups of processes: through-hardening processes, surface hardening processes and softening processes. The through-hardening segment utilizes animations, phase diagrams and photomicrographs to explain the hardening process and define its many variables. Quenching speed, mediums and temperature control are examined, as well as the tempering of heat treated materials. The surface hardening section offers examples of the processes that produce surface, or case hardened parts. Included are explanations of: flame hardening, induction hardening, carburizing, nitriding and carbonitriding. The softening processes examined in this heat treating program include: annealing, normalizing and stress relieving.
