Optimisation process for internal tension distribution in spring elements

The invention relates to a method for optimizing the residual stress distribution in spring elements used as vehicle suspension springs, especially in the bar cross-section of helical compression springs of relatively high strength, the helical compression springs being set and shot-peened. To provi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	HANS VONDRACEK
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CHEMISTRY ENGINEERING ELEMENTS AND UNITS 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 MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS SHOCK-ABSORBERS SPRINGS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a method for optimizing the residual stress distribution in spring elements used as vehicle suspension springs, especially in the bar cross-section of helical compression springs of relatively high strength, the helical compression springs being set and shot-peened. To provide such a method which allows a further improvement in the life, in particular, of helical compression springs with strengths of Rm >/= 1800 N/mm , the helical compression springs are fed to the production steps of setting and shot-peening with a predetermined strength profile related to the bar cross-section.