DIFFERENTIAL HEAT SHAPING AND HARDENING USING INFRARED LIGHT

A shaped part having at least two structural regions of different ductility is made from one unitary blank of a hardenable steel alloy by first heating the entire blank to an elevated temperature below an AC3 point of the alloy. Then only first regions of the blank are heated by a plurality of infra...

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Bibliographische Detailangaben
Hauptverfasser:	PELLMANN MARKUS, BOEKE JOHANNES
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
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Beschreibung
Zusammenfassung:	A shaped part having at least two structural regions of different ductility is made from one unitary blank of a hardenable steel alloy by first heating the entire blank to an elevated temperature below an AC3 point of the alloy. Then only first regions of the blank are heated by a plurality of infrared lamps to above the AC3 point of the alloy while maintaining the rest of the blank below the AC3 point of the alloy. Finally the first regions are hardened in a thermoshaping and hardening tool.