Abstract
A new test method for sheet metal deformation, Tension under Cyclic Bending and Compression (TCBC), is developed in this study. The TCBC method is capable of testing material deformation under tension, bending, and compression with cyclic loading. The effect of each deformation mode can be independently controlled by adjusting corresponding parameters. Using the TCBC test rig developed, aluminium alloy AA5251-H22 is tested under four different testing conditions: simple tension, tension under cyclic compression, tension under cyclic bending, and tension under cyclic bending and compression. The maximum elongation of the tested specimen at fracture and the tensile force required for material plastic deformation are evaluated. The results show that the maximum elongation increases significantly under the TCBC condition due to localised plastic deformation under compression that delays the fracture. Finite element modelling of the TCBC test is developed to obtain stress distributions to explain the enhanced formability. The new TCBC method may be used for testing material formability that resembles double-side incremental forming.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Meier H, Magnus C, Smukala V (2011) Impact of superimposed pressure on dieless incremental sheet metal forming with two moving tools. CIRP Ann Manuf Technol 60(1):327–330
Smith J, Malhotra R, Liu W, Cao J (2013) Deformation mechanics in single-point and accumulative double-sided incremental forming. Int J Adv Manuf Technol 69(5–8):1185–1201
Banabic D (2000) Formability of metallicmaterials: plastic anisotropy, formability testing, forming limits. Springer Science & Business Media
Shim M-S, Park J-J (2001) The formability of aluminium sheet in incremental forming. J Mater Process Technol 113(1):654–658
Filice L, Fratini L, Micari F (2002) Analysis of material formability in incremental forming. CIRP Ann Manuf Technol 51(1):199–202
Fratini L, Ambrogio G, Di Lorenzo R, Filice L, Micari F (2004) Influence of mechanical properties of the sheet material on formability in single point incremental forming. CIRP Ann Manuf Technol 53(1):207–210
Malhotra R, Cao J, BeltranM X, Magargee J, Kiridena V, Xia ZC (2012) Accumulative-DSIF strategy for enhancing process capabilities in incremental forming. CIRP Ann Manuf Technol 61(1):251–254
Lu B, Fang Y, Xu D, Chen J, Ai S, Long H, Ou H, Cao J (2015) Investigation of material deformation mechanism in double side incremental sheet forming. Int J Mach Tools Manuf 93:37–48
Emmens WC, van der Weijde D, van den Boogaard AH (2009) The FLC, enhanced formability, and incremental sheet forming. In: Proceedings of the international deep drawing research group IDDRG 2009 international conference, pp 1–3
Martins P, Bay N, Skjødt M, Silva M (2008) Theory of single point incremental forming. CIRP Ann Manuf Technol 57(1):247–252
Eyckens P, Van Bael A, Van Houtte P (2009) Marciniak-Kuczynski type modelling of the effect of through-thickness shear on the forming limits of sheet metal. Int J Plast 25(12):2249–2268
Jackson K, Allwood J (2009) The mechanics of incremental sheet forming. J Mater Process Technol 209(3):1158–1174
Emmens WC, Van den Boogaard AH (2009) An overview of stabilizing deformation mechanisms in incremental sheet forming. J Mater Process Technol 209(8):3688–3695
Emmens WC, Van den Boogaard AH (2009) Incremental forming by continuous bending under tension—an experimental investigation. J Mater Process Technol 209(14):5456–5463
Li Y, Chen X, Liu Z, Sun J, Li F, Li J, Zhao G (2017) A review on the recent development of incremental sheet-forming process. Int J Adv Manuf Technol 1–24
Gatea S, Ou H, McCartney G (2016) Review on the influence of process parameters in incremental sheet forming. Int J Adv Manuf Technol 87(1–4):479–499
Ai S, Long H (2019) A review on material fracture mechanism in incremental sheet forming. Int J Adv Manuf Technol 104(1–4):33–61
Ai S, Dai R, Long H (2020) Investigating formability enhancement in double side incremental forming by developing a new test method of tension under cyclic bending and compression. J Mater Process Technol 275:
Emmens WC, Van den Boogaard AH (2011) Cyclic stretch-bending: mechanics, stability and formability. J Mater Process Technol 211:1965–1981
Acknowledgments
The authors would like to acknowledge the research funding support received from UK EPSRC (EP/T005254/1) and EU FP7 Marie Curie Actions (FP7-PEOPLE-2013 IIF 628055). They are also grateful to senior mechanical technician David Webster in Department of Mechanical Engineering of the University of Sheffield for his support in developing and manufacturing the TCBC test rig.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2021 The Minerals, Metals & Materials Society
About this paper
Cite this paper
Long, H., Ai, S., Tian, F., Lu, B., Chen, J., Ou, H. (2021). A New Test Method for Sheet Metal Deformation Subject to Tension Under Cyclic Bending and Compression (TCBC). In: Daehn, G., Cao, J., Kinsey, B., Tekkaya, E., Vivek, A., Yoshida, Y. (eds) Forming the Future. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-75381-8_37
Download citation
DOI: https://doi.org/10.1007/978-3-030-75381-8_37
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-75380-1
Online ISBN: 978-3-030-75381-8
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)