Felix Kolpak M. Sc.
Baroper Str. 303
MB III / Raum 4.030
Campus Süd
44227 Dortmund
Germany

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+49 231 755 8433

Key activities

Cold forging
Numerical modeling
Load reversal effects

Projects

Analysis and Extension of the Limits of Application in Metal Forming-Based Recycling of Aluminum Chips (completed)

Prediction of Local Product Properties in FEM Forming Simulations (completed)

 

Publications

2019
Hering, O., Kolpak, F., Dahnke, C., Tekkaya, A. E., 2019. High Strain Flow Curves by Mechanical Tests on Specimens Pre-strained by Forward Rod Extrusion. In: Proceedings of the 52nd ICFG Plenary Meeting, 15-18 September 2019, Donostia-San Sebastian, Spain. (Digital)
Kolpak, F., Hering, O., Dahnke, C., Tekkaya, A. E., 2019. Producing Hollow Shafts by Composite Extrusion Utilizing Granular Cores. In: Proceedings of the 52nd ICFG Plenary Meeting, 15-18 September 2019, Donostia-San Sebastian, Spain. (Digital)
Kolpak, F., Schulze, A., Dahnke, C., Tekkaya, A.E., 2019. Predicting weld-quality in direct hot extrusion of aluminium chips. Journal of Materials Processing Technology, 274, pp. 116–294
Hering, H., Kolpak, F., Tekkaya, A.E., 2019. Flow curves up to high strains considering load reversal and damage. International Journal of Material Forming.  DOI: 10.1007/s12289-018-01466-z
Kolpak, F., Dahnke, C., Tekkaya, A. E., 2019. Forming-induced anisotropy of product properties in cold extrusion. In: Proceedings of the METEC and 4th European Steel Technology and Application Days, June 24-28, 2019, Düsseldorf, Germany. (Digital)
2018
Kolpak, F., Dahnke, C., Tekkaya, A. E., 2018. Influence of the Bauschinger Effect on the Product Properties of Cold Forged Parts. In: Proceedings of the 8th International Seminar on Precision Forging, Nagoya, Japan.
Kolpak, F., Dahnke, C., Tekkaya, A. E., 2018. Prediction of Product Properties in Cold Forging Considering the Bauschinger Effect. In: Proceedings of the 51st ICFG Plenary Meeting, Columbus, USA, pp. 159-166.
2017
Dahnke, C., Kolpak, F., Kloppenborg, T., Tekkaya, A. E., 2017. Manufacturing of reinforced profiles by means of combined continuous and discontinuous composite extrusion. In: Proceedings of the ICEB 2017, Verona, Italy. (Digital)
Kolpak, F., Schwane, M., Dahnke, C., Tekkaya, A. E., 2017. Improved property prediction of cold forged components by means of enhanced material models. SCT 2017, 18.-22.06.2017, Amsterdam, Niederlande.
Kolpak, F., Dahnke, C., Tekkaya, A. E., 2017. Numerical Prediction of the Process Limits of Aluminum Chip Extrusion. In: WGP Jahreskongress 2017. (Digital)
2016
Napierala, O., Kolpak, F., Dahnke, C., Tekkaya, A. E., Wälder, J., Liewald, M., 2016. Potentials and Limits of Hollow Lateral Extrusion. ICFG 2016, 49th Plenary Meeting, 04.-07.09.2016, Stuttgart, Germany.