Investigation of a composite ring rolling process considering bonding behaviour in FEM and experiment

Abstract

Abstract Transferring the principle of roll bonding to ring rolling could enable production of seamless radial composite rings tailored to specific applications. This process was further studied experimentally and numerically via FE simulations of the ring rolling process, which consider bonding and debonding behaviour of the rings by use of a contact subroutine. Model experiments used to estimate the material bond strength during the process show strong bonding behaviour. However, no bonding between both rings was observed after rolling trials. Using FE simulations, possible explanations for failure to achieve a lasting material bond between both rings are identified and necessary steps to successfully produce a composite rolled ring are introduced.