Effect of vibration frequency and amplitude on formability in rotational vibration-assisted incremental sheet forming (RV-ISF)

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Effect of vibration frequency and amplitude on formability in rotational vibration-assisted incremental sheet forming (RV-ISF)

ZHU Hui, PENG Wenxuan, LONG Hui

Abstract. Incremental sheet forming (ISF) is a flexible manufacturing process, potentially for producing small-batched and customized sheet products. To improve formability of hard-to-form materials, part surface finish and forming accuracy, the rotational vibration-assisted ISF (RV-ISF) has been developed by the University of Sheffield with the use of novel tool designs with either offsets or grooves on the tool surface to introduce both mechanical vibration and localized heating into the conventional ISF process (C-ISF). With the use of double-offset (T2) and four-groove (T4) tools in the experiments, this work studies the effects of tool design and tool rotational speed on sheet vibration amplitude and frequency, as well as their effects on forming temperature and force reduction and formability improvement. Results show that the sheet vibration amplitude is mainly influenced by the tool design, while the vibration frequency is affected by both tool design and rotational speed. RV-ISF with T4 shows greater material formability improvement of AA3003-O due to greater temperature rise and low-frequency-low-amplitude vibration. RV-ISF with T2 results in greater reduction of forming force because of the higher sheet vibration amplitude.

Keywords
Incremental Sheet Forming, Rotational Vibration, Material Formability

Published online 4/24/2024, 10 pages
Copyright © 2024 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: ZHU Hui, PENG Wenxuan, LONG Hui, Effect of vibration frequency and amplitude on formability in rotational vibration-assisted incremental sheet forming (RV-ISF), Materials Research Proceedings, Vol. 41, pp 1559-1568, 2024

DOI: https://doi.org/10.21741/9781644903131-173

The article was published as article 173 of the book Material Forming

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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