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Driven by the demand for resource efficiency, increased reliability, and a need for higher performance, rolling bearings offer optimisation potential with regard to component design and manufacturing processes due to their frequent use in mechanical engineering. Tailored forming technology enables mixed metal compounds to be functionalised in single components in order to partially meet the above-mentioned requirements better than conventional mono-material parts. For this purpose, a semi-finished aluminium-steel workpiece is first manufactured by co-extrusion, then formed subsequently, heat-treated, and finally machined. This hybrid product serves as a substitute for the outer ring of an angular contact ball bearing, providing optimised characteristics with regard to component weight and operational behavior by using locally adapted material properties. Here, the base material consists of aluminium, while the tribological loaded contact zone (ball - raceway) consists of a fatigue resistant steel. In orde... |
