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  1. Manufacture of profiles with variable cross-sections, curvatures and twistings by influencing the material flow in hot extrusion

    Selvaggio, A., Ben Khalifa, N., Chatti, S. & Tekkaya, A. E., 2012, Proceedings of the 14th International Conference on Metal Forming, METAL FORMING 2012: Proceedings of the 14th International Conference on Metal forming. Kusiak, J. (ed.). John Wiley & Sons Ltd., Vol. SPL. ISSUE. p. 507-510 4 p. (Steel Research International; vol. 83.2012).

    Research output: Contributions to collected editions/works › Article in conference proceedings › Research

  2. Numerical approach for the evaluation of seam welding criteria in extrusion processes

    Schwane, M., Kloppenborg, T., Reeb, A., Ben Khalifa, N., Brosius, A., Weidenmann, K. A. & Tekkaya, A. E., 2012, Material Forming ESAFORM 2012: Proceedings. Merklein, M. & Hagenah, H. (eds.). Trans Tech Publications, Vol. 504-506. p. 517-522 6 p. (Key Engineering Materials; vol. 504-506).

    Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review

  3. Experimental and numerical analysis of material flow in porthole die extrusion

    Kloppenborg, T., Schwane, M., Ben Khalifa, N. & Tekkaya, A. E., 2012, International Conference on Extrusion and Benchmark 2011: Progress in Extrusion Technology and Simulation of Light Metal Alloys. Tomesani, L. & Donati, L. (eds.). Trans Tech Publications, Vol. 491. p. 97-104 8 p. (Key Engineering Materials; vol. 491).

    Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review

  4. New concepts for cooling of extrusion dies manufactured by rapid tooling

    Hölker, R., Jäger, A., Ben Khalifa, N. & Tekkaya, A. E., 2012, International Conference on Extrusion and Benchmark 2011: Progress in Extrusion Technology and Simulation of Light Metal Alloys. Tomesani, L. & Donati, L. (eds.). Trans Tech Publications, Vol. 491. p. 223-232 10 p. (Key Engineering Materials; vol. 491).

    Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review

  5. Effect of Porthole Design and Welding Chamber Dimensions on Material Flow and Weld Deformability of Extruded Aluminium Profiles

    Lorenzo, D., Ben Khalifa, N., Tomesani, L. & Tekkaya, A. E., 2012, Material Forming ESAFORM 2012. Merklein, M. & Hagenah, H. (eds.). Trans Tech Publications, Vol. 504-506. p. 523-528 6 p. (Key Engineering Materials; vol. 504-506).

    Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review

  6. Lightweight construction by means of profiles

    Chatti, S., Pietzka, D., Ben Khalifa, N., Jäger, A., Selvaggio, A. & Tekkaya, A. E., 2012, Material Forming ESAFORM 2012. Merklein, M. & Hagenah, H. (eds.). Trans Tech Publications, Vol. 504-506. p. 369-374 6 p. (Key Engineering Materials; vol. 504-506).

    Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review

  7. High quality extrudates from aluminum chips by new billet compaction and deformation routes

    Misiolek, W. Z., Haase, M., Ben Khalifa, N., Tekkaya, A. E. & Kleiner, M., 01.01.2012, In: CIRP Annals - Manufacturing Technology. 61, 1, p. 239-242 4 p.

    Research output: Journal contributions › Journal articles › Research › peer-review

  8. Improving mechanical properties of chip-based aluminum extrudates by integrated extrusion and equal channel angular pressing (iECAP)

    Haase, M., Ben Khalifa, N., Tekkaya, A. E. & Misiolek, W. Z., 30.03.2012, In: Materials Science & Engineering A. 539, p. 194-204 11 p.

    Research output: Journal contributions › Journal articles › Research › peer-review

  9. Published

    Arbeitszufriedenheit und flexible Arbeitszeiten: empirische Analyse mit Daten des Sozio-oekonomischen Panels

    Hanglberger, D., 05.2010, Berlin: Deutsches Institut für Wirtschaftsforschung (DIW), 13 p. (SOEPpapers on Multidisciplinary Panel Data Research; no. 304).

    Research output: Working paper › Working papers

  10. Value co-creation through collective intelligence in the public sector: A review of US and European initiatives

    Wise, S., Paton, R. A. & Gegenhuber, T., 05.2012, In: VINE. 42, 2, p. 251-276 26 p.

    Research output: Journal contributions › Journal articles › Research › peer-review

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