Managing springback in stamped panels and assemblies is among the most challenging objectives during the engineering, build and tryout of stamping dies. Factors contributing to this challenge are: i) springback is addressed most often only by compensating the forming tools, and ii) even this only towards the end of die and process engineering.
Not all springback is “compensatable”: large magnitudes of springback, oil canning, sidewall curl, unstable springback responses, all of which lead to extended and expensive tryout.
Reduce, Countermeasure, then Compensate: this is a commonsense credo for managing springback and for achieving dimensional compliance. In this presentation, we start with a review of common springback manifestations, their identification and root cause; we then roadmap the application of state-of-the-art digital engineering tools to systematically reduce and / or countermeasure springback, and to finalize forming tools and repeatable processes that lend themselves to reliable compensation.