LASER QUENCHING METHOD

To secure the strength of a workpiece according to design specifications by solving the problem of decreased hardness of the workpiece due to tempering at an irradiation start or end part of a laser beam.SOLUTION: A laser quenching method according to an embodiment of the present invention is a meth...

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Bibliographische Detailangaben
Hauptverfasser:	TOCHIKAWA YUKI, MAKIZOE YOSHIAKI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BLASTING CHEMISTRY ENGINEERING ELEMENTS AND UNITS GEARING GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	To secure the strength of a workpiece according to design specifications by solving the problem of decreased hardness of the workpiece due to tempering at an irradiation start or end part of a laser beam.SOLUTION: A laser quenching method according to an embodiment of the present invention is a method of irradiating a member with a laser and performing quenching, where the member is a first gear, and the position where the irradiation of the laser is started or the position where the irradiation of the laser is finished is configured to be other than the tooth surface of the first gear.SELECTED DRAWING: Figure 2 【課題】レーザ光の照射開始部分、又は照射終了部分において、焼き戻しにより被加工物の硬度が低下するという問題を十分に解決することは困難であり、被加工物の強度を設計仕様通りに確保することが必ずしもできていないという問題があった。【解決手段】本発明の一実施形態に係るレーザ焼入れ方法は、部材にレーザを照射し、焼入れを行う方法であって、該部材は第１の歯車であり、該レーザの照射が開始される位置、又は、該レーザの照射が終了する位置を、第１の歯車の歯面以外とするよう構成される。【選択図】図２