Geometrical Accuracy in Two-Stage Incremental Sheet Forming with Active Medium

Research output: Contributions to collected editions/worksArticle in conference proceedingsResearchpeer-review

Authors

Incremental sheet forming with active medium (IFAM) is a modification of the well-known single point incremental forming (SPIF) and allows convex forming operations by applying pressure of an active medium on the bottom surface of the blank. Both convex and concave forming can be combined to a multi-stage forming strategy when the part is turned between these two forming steps. Experiments on a truncated pyramid are conducted to evaluate the influence of the two-stage forming strategy on the geometrical accuracy in comparison with an equivalent single-stage forming strategy. The findings indicate that the height of the convex preform has a major impact on the final accuracy. If the height of preform amounts 75% of the target height, the undesired bending in the flange region is significantly reduced and can be explained by a decreased vertical forming force. This effect leads to an increased geometrical accuracy in contrast to single-stage SPIF.
Original languageEnglish
Title of host publicationProduction at the Leading Edge of Technology : Proceedings of the 11th Congress of the German Academic Association for Production Technology (WGP), Dresden, September 2021
EditorsBern-Arno Behrens, Alexander Brosius, Welf-Guntram Drossel, Wolfgang Hintze, Steffen Ihlenfeldt, Peter Nyhuis
Number of pages10
Place of PublicationCham
PublisherSpringer Verlag
Publication date2022
Pages65-74
ISBN (print)978-3-030-78423-2, 978-3-030-78426-3
ISBN (electronic)978-3-030-78424-9
DOIs
Publication statusPublished - 2022
Event11th Congress of the German Academic Association for Production Technology (WGP) - 2021: Produktion im Grenzbereich – Durch Innovation den Wandel gestalten - Technische Universität Dresden, Dresden, Germany
Duration: 28.09.202101.10.2021
Conference number: 11

Bibliographical note

Funding Information:
Acknowledgements. The authors would like to thank the German Research Foundation (DFG) for financially supporting this research project under the grant number BE 5196/14-1.

Publisher Copyright:
© 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.

    Research areas

  • Engineering - Invremental sheet forming with active medium, multi-stage forming, geometrical accuracy

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