Experimental Investigation of the Shear Cutting Behaviour of Sandwich Panels


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Continually increasing exhaust emission standards for automobiles and an increasing environmental awareness push design engineers to develop new constructive and material concepts. So-called sandwich panels, consisting of stiff facings and light-weight cores, offer the possibility to combine properties of different materials synergistically. When processing large quantities, as is the case in the automotive industry commonly used manufacturing processes for cutting sandwich panels, like sawing or milling, are not applicable. A common manufacturing process to cut metal sheets in high quantities is shear cutting. However, pre-trials of shear cutting of sandwich panels have shown that it is not possible to achieve flawless cutting surfaces with current process layouts. Characteristic types of failure like high bending of the facings, delamination effects, burr formation and an undefined cracking of the core material were ascertained. Thus, in this study, the influence of cutting parameters, such as the clearance and the punch diameter, on these types of failure is examined. Five different clearances between 0.025 mm and 0.4 mm with two punch diameters, 8 mm and 32 mm, were investigated. In order to compare the influence of different materials, three commercially available sandwich panels were studied. The chosen sandwich panels differ both in the face sheet thickness and the core material. Finally, the shear cutting force is measured to identify a possible correlation between the cutting force and the face bending. As a result, optimal clearances to minimize the face bending are derived. Additionally, the influence of the core stiffness on the cutting force is determined.



Materials Science Forum (Volumes 825-826)

Edited by:

Christian Edtmaier and Guillermo Requena






P. Stein et al., "Experimental Investigation of the Shear Cutting Behaviour of Sandwich Panels", Materials Science Forum, Vols. 825-826, pp. 433-440, 2015

Online since:

July 2015




* - Corresponding Author

[1] R. Alderliesten, On the Development of Hybrid Material Concepts for Aircraft Structures, Recent Patents on Engineering 3 (2009) 25-28.

[2] J. Gresham, W. Cantwell, M.J. Cardew-Hall, P. Compston. S. Kalyanasundaram, Drawing behaviour of metal-composite sandwich structures, Composite Structures 75 (2006) 305-312.

DOI: 10.1016/j.compstruct.2006.04.010

[3] P. Groche, M. Ibis, C. Hatzfeld, A. Stöckigt, C. Gerlitzky, Economic production of load-bearing sheet metal parts with printed strain gages by combining forming and screen printing, International Journal of Material Forming, Springer, published online (2014).

DOI: 10.1007/s12289-014-1165-z

[4] J.R. Vinson, R.L. Sierakowski, The Behavior of Structures Composed of Composite Materials - Second Edition, Dordrecht, Springer, Berlin, (2008).

[5] M. Weiss, M.E. Dingle, B.F. Rolfe, P.D. Hodgson, The Influence of Temperature on the Forming Behavior of Metal/Polymer Laminates in Sheet Metal Forming. Journal of Engineering Materials and Technology 129 (2007) 530-537.

DOI: 10.1115/1.2772329

[6] K.J. Kim, D. Kim, S.H. Choi, K. Chung et al., Formability of AA5182/polypropylene/AA5182 sandwich sheets. Journal of Materials Processing Technology 139 (2003) 1-7.

DOI: 10.1016/s0924-0136(03)00173-0

[7] O. Sokolova, Study of metal/polymer/metal hybrid sandwich composites for the automotive industry. Dissertation, TU Clausthal, Papierflieger Verlag GmbH, Clausthal-Zellerfeld, (2013).

[8] A. Carradò, J. Faerber, S. Niemeyer, G. Ziegmann et al., Metal/polymer/metal hybrid systems: Towards potential formability applications. Composite Structures 93 (2011) 715-721.

DOI: 10.1016/j.compstruct.2010.07.016

[9] M. Takiguchi, F. Yoshida, Deformation Characteristics and Delamination Strength of Adhesively Bonded Aluminum Alloy Sheet under Plastic Bending. JSME, 46-1 (2003) 68-75.

DOI: 10.1299/jsmea.46.68

[11] M. Liewald, C. Bolay, S. Thullner, Shear cutting and counter shear cutting of sandwich materials. Journal of Manufacturing Processes 15-3 (2013) 364-373.

DOI: 10.1016/j.jmapro.2013.03.001

[12] D. Übelacker, J. Hohmann, P. Groche, Force requirements in shear cutting of metal-polymer-metal composites. Advanced Materials Research 1018 (2014) 137-144.

DOI: 10.4028/www.scientific.net/amr.1018.137

[13] K. Lange, Handbook of metal forming. McGraw-Hill Book Company, Expanded and updated translation of the German text Lehrbuch der Umformtechnik, Springer, Berlin, (1985).

[14] Data sheets for Alucobond and Hylite foam from 3A Composites GmbH, 78224 Singen, Germany.

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