Compensating geometric inaccuracies in incremental sheet forming at elevated temperatures

Abstract

Abstract Incremental sheet metal forming (ISF) at elevated temperatures is used to counteract the constraints of forming at room temperature (e.g. the resulting forming forces, formable materials, achievable deformation). However, the current state of the art does not only show the benefits of forming at elevated temperatures but also the fact that hot formed parts tend to be smaller than parts which have been formed at room temperature. Responding to this rather unwanted effect, this work intends to identify the shrinking effect and to develop a compensation strategy. This paper presents the approach as well as first experimental results to compensate inaccuracies in incremental sheet forming caused by local heating.