Deep Laser Peening

An embodiment includes a method, comprising: applying an overlay material to a portion of a rotatable shaft; directing a pulse of laser energy to contact the overlay material to produce a shock wave; and re-positioning one or more of the portion of the rotatable shaft and the pulse of laser energy t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	Garrett Roger L
Format:	Patent
Sprache:	eng
Schlagworte:	BEARINGS BLASTING CHEMISTRY ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS 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 ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	An embodiment includes a method, comprising: applying an overlay material to a portion of a rotatable shaft; directing a pulse of laser energy to contact the overlay material to produce a shock wave; and re-positioning one or more of the portion of the rotatable shaft and the pulse of laser energy to contact the overlay material at different positions to create a laser peened surface on the portion of the rotatable shaft; the pulse of laser energy comprising a pulse sufficient to create the laser peened surface having residual compressive stress to a depth exceeding about 3 mm. Other aspects are described and claimed.