Geometrical Accuracy in Two-Stage Incremental Sheet Forming with Active Medium
Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
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Production at the Leading Edge of Technology: Proceedings of the 11th Congress of the German Academic Association for Production Technology (WGP), Dresden, September 2021. ed. / Bern-Arno Behrens; Alexander Brosius; Welf-Guntram Drossel; Wolfgang Hintze; Steffen Ihlenfeldt; Peter Nyhuis. Cham: Springer Verlag, 2022. p. 65-74 (Lecture Notes in Production Engineering; Vol. Part F1160).
Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
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TY - CHAP
T1 - Geometrical Accuracy in Two-Stage Incremental Sheet Forming with Active Medium
AU - Thiery, Sebastian
AU - Ben Khalifa, Noomane
N1 - Conference code: 11
PY - 2022
Y1 - 2022
N2 - 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.
AB - 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.
KW - Engineering
KW - Invremental sheet forming with active medium
KW - multi-stage forming
KW - geometrical accuracy
UR - https://www.mendeley.com/catalogue/dbeed5d1-8a46-31f9-a153-ffe651f5b2dc/
UR - http://www.scopus.com/inward/record.url?scp=85166082997&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/4412bfdd-228d-35e9-adb5-7e189ed06a3e/
U2 - 10.1007/978-3-030-78424-9_8
DO - 10.1007/978-3-030-78424-9_8
M3 - Article in conference proceedings
SN - 978-3-030-78423-2
SN - 978-3-030-78426-3
T3 - Lecture Notes in Production Engineering
SP - 65
EP - 74
BT - Production at the Leading Edge of Technology
A2 - Behrens, Bern-Arno
A2 - Brosius, Alexander
A2 - Drossel, Welf-Guntram
A2 - Hintze, Wolfgang
A2 - Ihlenfeldt, Steffen
A2 - Nyhuis, Peter
PB - Springer Verlag
CY - Cham
T2 - 11th Congress of the German Academic Association for Production Technology (WGP) - 2021
Y2 - 28 September 2021 through 1 October 2021
ER -