FEA-Based Optimisation of a Clinching Process with a Closed Single-Part Die Aimed at Damage Minimization in CR240BH-AlSi10MnMg Joints

Abstract:

The paper presents results of FEA-based optimisation of the tool design of a clinching process with a closed single-part die. The studied materials are the bake-hardening steel CR240BH, 1.5 mm thick, on the punch side and the die-cast aluminium alloy AlSi10MnMg, 2.95 mm thick, on the die side. The optimisation was aimed at suppression of cracks that appear at the bottom of the clinch joint in AlSi10MnMg in the case of using conventional tool designs. By varying geometry parameters of the tools it was possible to reduce crack probability, though along with slightly worse, but still acceptable geometry parameters of the clinch joint.

• Periodical: Key Engineering Materials (Volumes 651-653)
• Pages: 1487-1492
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.651-653.1487
• Online since: July 2015
• Authors: Bernd-Arno Behrens, Anas Bouguecha, Milan Vucetic, Sven Hübner, Deniz Yilkiran, Yi Lin Jin, Ilya Peshekhodov*
• Keywords: Bake-Hardening Steel, Clinching, Die-Cast Aluminium, FEA, Process Optimisation

References

[1] Kaščák, L., Spišák, E.: Clinching as a non-standard method for joining materials of dissimilar properties, Mechanika z. 84 (3/12), Nr. 284, (2012).

DOI: 10.7862/rm.2012.3

[2] Carboni, M., Beretta, S., Monno, M.: Fatigue Behaviour of clinched Joints, 15th European Conference on Fracture, Stockholm, Sweden Aug 11-13, (2004).

[3] Ostermann, F.: Anwendungstechnologie Aluminium, Springer Verlag Berlin Heidelberg New York, Auflage 2, (2007).

[4] Stahl-Informations-Zentrum: Fügen durch Umformen, Nieten und Durchsetzfügen - Innovative Verbindungsverfahren für die Praxis. Dokumentation 707, Stahl-Informations-Zentrum, Düsseldorf.

DOI: 10.1002/bate.200301880

[5] DVS - Deutscher Verband für Schweißen und verwandte Verfahren e. V.; EFB Europäische Forschungsgesellschaft für Blechverarbeitung e. V.: Merkblatt DVS/EFB 3420 – Clinchen Überblick DVS Verlag GmbH, Düsseldorf, (2002).

DOI: 10.1002/mawe.19780090512

[6] Hübner, S.: Clinchen moderner Blechwerkstoffe, PhD thesis, Leibniz Univerität Hannover, PZH Verlag, (2005).

[7] Deutscher Verband für Schweißen und verwandte Verfahren e.V.: Taschenbuch DVS-Merkblätter und Richtlinien - Mechanisches Fügen, Fachbuchreihe Schweißtechnik, Band 153, DVS-Media GmbH, Düsseldorf, (2009).

DOI: 10.1002/maco.19890401118

[8] D. -C. Chen, C. -S. You, F. -Y. Gao: Analysis and experiment of 7075 aluminium alloy tensile test, Procedia Engineering 81 (2014) 1252-1258.

DOI: 10.1016/j.proeng.2014.10.106