Distortion compensation strategies in the production process of bearing rings

Abstract

In the SFB570, several sub-processes of the standard process chain for manufacturing bearing rings have been modified in order to compensate distortion. This paper presents control strategies that enable a precise deployment of the compensation potential, on a local (sub-process) level as well as along the process chain. Two different control strategies for local compensation are demonstrated at the example of the cutting and the gas quenching processes. Furthermore, a concept for a process-wide compensation of distortion is presented.Key words: Quality control, compensation, bearing ring, roundness, wall thickness Im SFB 570 wurden mehrere Teilprozesse der Standard-Prozesskette eines Wälzlagerrings für eine Verzugskompensation modifiziert. Dieses Paper präsentiert Regelungsstrategien, die eine gezielte Auslösung des Kompensationspotenzials auf einer lokalen (Teilprozess-) Ebene sowie entlang der gesamten Prozesskette ermög-lichen. Zwei verschiedene Regelungsstrategien für eine lokale Verzugskompensation werden am Beispiel des Zerspan-und Gasabschreckprozesses demonstriert. Darüber hinaus wird ein Konzept für eine prozessübergreifende Verzugskompensation vorgestellt.

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