Material Flow Visualization for Metal Extrusion on near Industrial Scale

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In the simulation of bulk forming processes the validation of the applied simulation models is necessary. Then, predictive simulations are possible. A visualisation method is an advanced way to create additional evaluation parameters. In this work, the upscaling of a newly developed non-destructive method from semi-industrial to near-industrial scale for metal extrusion of aluminium alloys is presented. A copper coating, which deforms with the billet material, was applied to one half (in the longitudinal direction) of a cast billet and detected by computed tomography (CT). The copper pattern was applied by a plasma coating technology to determine the deformation of the billet material during the process until the final profile. A detailed analysis of the upscaled method with improved geometric setup shows the superiority of the newly chosen properties enabling a complete determination of strain state also in the profile.

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436-442

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July 2022

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[1] M. Bauser, G. Sauer, K. Siegert (eds.), Strangpressen (extrusion), Aluminium-Verlag, 2001, pp.153-154.

Google Scholar

[2] H. Valberg, Characterization of metal flow in metals processing by a combined approach using advanced experimental grid pattern techniques coupled with FE-Analysis, in: H. Weiland, A.D. Rollett, W.A. Cassada (eds.), Proceedings of ICAA-13, John Wiley&Sons, Hoboken, pp.1501-1513, (2012).

DOI: 10.1007/978-3-319-48761-8_227

Google Scholar

[3] D. Horwatitsch, J. Müller, H. Kilian, M. Brandecker, A. Wahlen, Validation of Simulated Material Flow in Aluminium Hot Extrusion with a Novel Visualisation Method", Materials Science Forum, Vols. 794 - 796, pp.15-20, Jun. (2014).

DOI: 10.4028/www.scientific.net/msf.794-796.15

Google Scholar

[4] J. Müller, A. Wahlen, D. Horwatitsch, FEM-Simulation des Strangpressens inkl. Fliessverhalten der Aluminiumlegierung EN AW-6082 (FEM-simulation of the metal extrusion process incl. flow behavior of aluminum alloy EN AW-6082), 8. Ranshofener Leichtmetalltage (LMT), pp.74-87, (2014).

DOI: 10.4028/p-qfc820

Google Scholar

[5] J. Kronsteiner, D. Horwatitsch, A. Hinterer, C. Gusenbauer, K. Zeman: Experimental determination of plastic strain in the extrusion process", 19th ESAFORM Conference 2016, Nantes; 27.04.2016 - 29.04.2016; in: "AIP Conference Proceedings,, AIP Publishing, 1769 (2016), Paper-Nr. 140001, 6 S.

DOI: 10.1063/1.4963538

Google Scholar

[6] D. Horwatitsch: Entwicklung eines Reibmodells für hohe Temperaturen und hohe Umformgrade (Development of a Friction Model for High Temperatures and High Strains). In: Steinhoff, K. (ed.): Berichte zur Metallformgebung – vol 3. Kassel: Kassel university press, (2013).

Google Scholar