Wild T, Merklein M (2026)
Publication Type: Journal article
Publication year: 2026
Book Volume: 20
Article Number: 63
Journal Issue: 2
DOI: 10.1007/s11740-026-01435-5
For the efficient manufacturing of thin-walled components in large quantities, multistage progressive die forming processes are suitable due to the automation potential and high output rates. This process approach is extensively used for fineblanking and stamping components. However, potential for lightweight design can be further realized by functional integration of these parts. Gearing geometries are common functional elements in this case. The bulk forming of these functional elements using sheet metal as semi-finished material can be attributed to sheet-bulk metal forming (SBMF). This process class is accompanied by challenges regarding the obtainable die filling. Furthermore, previous studies have shown that there is a geometry-dependent anisotropic material flow during the extrusion of functional elements from coil. Within this study, the forming stage of a multistage process setup, which consists of various trim operations and the forming stage, is investigated using a metal strip as coil layout geometry. As a workpiece, a circular component with an abstracted locking tooth geometry is manufactured by forward extrusion. By comparing the process results of the coil layout to the forming of a circular blank, the influence of the coil layout on the direction-dependent material flow is analyzed. In particular, the effect of the workpiece connector to the carrier strip on the resulting material flow is relevant within this study. Subsequently, strategies for the improvement of die filling by geometric adaption of the semi-finished material and varying the stage sequence are derived.
APA:
Wild, T., & Merklein, M. (2026). Investigation of the influence of coil layout geometry on the extrusion of functional components from sheet metal. Production Engineering, 20(2). https://doi.org/10.1007/s11740-026-01435-5
MLA:
Wild, Thomas, and Marion Merklein. "Investigation of the influence of coil layout geometry on the extrusion of functional components from sheet metal." Production Engineering 20.2 (2026).
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