S22: Best Practices Towards Dimensional Compliance of Stamped Panels

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Springback best practices, diligently accumulated over decades, have been effective in managing dimensional compliance on mild steel and HSLA stampings – even with little or no support from virtual engineering tools. In the past dozen years however, newer grades of advanced high-strength steels and aluminum alloys have upended this store of accepted best practices and collective wisdom. The role of virtual engineering in the mitigation and management of springback for these materials is now clearly acknowledged; however, best practices toward effective application of these tools are not widely and clearly understood. This presentation will review the differences in the behavior between different classes of sheet metal (mild and advanced high-strength steel, aluminum alloys), and how these influence springback outcomes. Best practices in the application of virtual engineering tools toward engineering dies and processes capable of producing dimensionally compliant panels also will be outlined.