Publications

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Journal Article (6)

  1. 1.
    Journal Article
    Wichern, C. M.; Rasp, W.: Measuring and Quantifying the Surface-Roughness Anisotropy of Modelled and Industrial Produced Surfaces. Advanced Materials Research 6-8, pp. 573 - 582 (2005)
  2. 2.
    Journal Article
    Wichern, C. M.; De Cooman, B. C.; Van Tyne, C. J.: Surface roughness of a hot-dipped galvanized sheet steel as a function of deformation mode. J. Mat. Proc. Technol. 160, pp. 278 - 288 (2005)
  3. 3.
    Journal Article
    Wichern, C. M.; De Cooman, B. C.; Van Tyne, C. J.: Surface roughness changes on a hot-dipped galvanized sheet steel during deformation at low stain levels. Acta Materialia 52, pp. 1211 - 1222 (2004)
  4. 4.
    Journal Article
    Rasp, W.; Wichern, C. M.: A Survey of the Morphology of Surface Features during Metal-Forming Operations. Steel Research International 74, pp. 300 - 303 (2003)
  5. 5.
    Journal Article
    De Cooman, B. C.; De Wit, K.; Wichern, C.: Influence of texture on the electro-galvanized Zn coating formability in the absence of die contact. Steel Research 73, pp. 498 - 507 (2002)
  6. 6.
    Journal Article
    Rasp, W.; Wichern, C. M.: Effects of surface-topography directionallity and lubrication condition on frictional behaviour during plastic deformation. Journal of Materials Processing Technology 125-126, pp. 379 - 386 (2002)

Book Chapter (1)

  1. 7.
    Book Chapter
    Rasp, W.; Wichern, C. M.: Areal and Volumetric Material-Property Changes during Metal Forming. In: Umformtechnik im Spannungsfeld zwischen Plastomechanik und Werkstofftechnik, pp. 287 - 293. GRIPS media 2008, Bad Harzburg (2008)

Conference Paper (7)

  1. 8.
    Conference Paper
    Rasp, W.; Wichern, C. M.; Jamet, J.-M.: Improvement of Formability via Superimposed Hydrostatic Pressure. In: DFG Abschlusskolloquium Erweiterung der Formgebungsgrenzen bei Umformprozessen. Abschlusskolloquium zum DFG-Schwerpunkt 1074 "Erweiterung der Formgebungsgrenzen bei Umformprozessen", Aachen, Germany, May 03, 2005. Verlagshaus Mainz, Aachen, Germany (2005)
  2. 9.
    Conference Paper
    Wichern, C. M.; Rasp, W.: Measuring and Quantifying the Surface-Roughness Anisotropy of Modelled and Industrial Produced Surfaces. Proc. 11th Int. Conf. on Sheet Metal, pp. 573 - 580 (2005)
  3. 10.
    Conference Paper
    Wichern, C. M.; Rasp, W.: Improved Deformability of Intermetallic Materials by Superimposition of Hydrostatic Pressure. In: Proc. 8th ICTP (CD-ROM). 8th ICTP 2005: International Conference on Technology of Plasticity, Verona, Italy, October 09, 2005 - October 13, 2005. (2005)
  4. 11.
    Conference Paper
    Wichern, C. M.; Rasp, W.: Effects of idealized surface geometry on lubricant entrapment during plane-strain upsetting - An FEM study. In: Metal forming, pp. 355 - 359. 10th International conference on Metal forming. Steel Grips, Bad Harzburg, Germany (2004)
  5. 12.
    Conference Paper
    Rasp, W.; Wichern, C. M.; Krone, L.: Deformation of Idealized Lubrication Pockets during Plane-Strain Upsetting. In: Proc. 6th Int. ESAFORM Conf. on Material Forming, pp. 755 - 758. International ESAFORM Conference on Material Forming, Salerno, Italy, April 28, 2003 - April 30, 2003. (2003)
  6. 13.
    Conference Paper
    Rasp, W.; Wichern, C. M.: Using the aspect ratio of surface void-volumes to quantify surface-topography directionality. In: Proc. 8th Int. Rolling Conference. 8th Int. Rolling Conference, Orlando, FL, USA, 2002. Iron and Steel Society, Orlando, FL, USA (2002)
  7. 14.
    Conference Paper
    Wichern, C. M.; Van Tyne, C. J.: On the forming limit diagram, von Mises equivalent strain, strain path, and surface roughness. In: Proc. XXI Verformungskundliches Kolloquium, pp. 156 - 164. Verformungskundliches Kolloquium, Leoben, Austria, 2002. Selbstverlag Montanuniversität Leoben, Leoben, Austria (2002)

Talk (7)

  1. 15.
    Talk
    Rasp, W.; Wichern, C. M.; Valentin, J.: Correlation of Surface Topography and Friction Coefficient for Different Metals Subjected to Flat Die Drawing. 25th Int. Deep-Drawing Research Group Congress (IDDRG), Porto, Portugal (2006)
  2. 16.
    Talk
    Laugier, M.; Raulf, M.; Kaefer, D.; Johnsson, A.; Rasp, W.; Wichern, C. M.; Hermann, H.: Lubrication Evaluation Method in Cold Rolling. 32nd Leeds-Lyon Symposium on Tribology, Lyon, France (2005)
  3. 17.
    Talk
    Wichern, C. M.; Rasp, W.: Measuring and Quantifying the Surface-Roughness Anisotropy of Modelled and Industrial Produced Surfaces. 11th Int. Conf. on Sheet Metal, Erlangen (2005)
  4. 18.
    Talk
    Wichern, C. M.; Rasp, W.: Improved Formability of Intermetallic Materials by Superimposition of Hydrostatic Pressure. 8th ICTP, Verona, Italy (2005)
  5. 19.
    Talk
    Wichern, C. M.; Rasp, W.: A study of roughness anisotropy of surfaces produced by laboratory and industrial rolling and surfaces generated by mathematical modelling. 24th Int. Deep-Drawing Research Group Congress (IDDRG), Besancon, Frankreich (2005)
  6. 20.
    Talk
    Wichern, C. M.; Rasp, W.: Beurteilung der Rauheitsanisotropie von unterschiedlich hergestellten Oberflächen. IDDRG Sitzung, Düsseldorf (2005)
 
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