Dr.-Ing. Christoph Dahnke
Head of Department

Baroper Str. 303
MB III / Raum 4.029
Campus Süd
44227 Dortmund
Germany

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+49 231 755 8441

Activities

Hot extrusion

Composite materials

Shape memory alloys

 

Projects

Manufacture by Forming and Characterization of Actuator Profiles Based on Shape-Memory-Alloys

Composite Cold Forging of Cold Forged Semi-Finished Parts (completed)

 

Publications

2019
Dahnke, C., Reeb, A., Pottmeyer, F., Weidenmann, K. A., Tekkaya, A. E., 2019. Thermomechanical behavior of shape memory alloy metal matrix composite actuator manufactured by composite extrusion. Smart Materials and Structures, 28, (5), DOI:10.1088/1361-665X/ab0ef5
Napierala, O., Dahnke, C., Tekkaya, A. E., 2019. Simultaneous deep drawing and cold forging of multi-material components: Draw-forging. CIRP Annals – Manufacturing Technology, DOI: 10.1016/j.cirp.2019.03.001
2018
Dahnke, C., Tekkaya, A. E., 2018. Influence of the Manufacturing Process on Hot Extruded Shape Memory Alloy Metal Matrix Composites. In: Proceedings of the ASME 2018 Conference on Smart Materials, Adaptive Structures and Intelligent Systems SMASIS2018, San Antonio, USA, DOI: 10.1115/SMASIS2018-7934.
Hering, O., Dahnke, C., Ben Khalifa, N., Tekkaya, A. E., 2018. Analysing damage evolution in cold forging by means of triaxiality and lode parameter. 8th JSTP International Seminar on Precision Forging. 05.-08.03.2018, Nagoya, Japan, pp. 121-124.
Hering, O., Dahnke, C., Tekkaya, A. E., 2018. Influence of Damage on the Properties of Cold Forged Parts. In: Proceedings of 51st ICFG Plenary Meeting, Columbus, USA, pp. 137-144.
Kolpak, F., Dahnke, C., Tekkaya, A. E., 2018. Influence of the Bauschinger Effect on the product properties of cold forged parts. 8th JSTP International Seminar on Precision Forging. 05.-08.03.2018, Nagoya, Japan, pp.73-76
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.
Napierala, O., Dahnke, C., Tekkaya, A. E., 2018. Presentation of Combined Deep Drawing and Cold Forging. In: Proceedings of the 51st ICFG Plenary Meeting, Columbus, USA, pp. 185-192.
Ossenkemper, S., Dahnke, C., Tekkaya, A. E., 2018. Analytical and Experimental Bond Strength Investigation of Cold Forged Composite Shafts. Journal of Materials Processing Technology 264, pp. 190-199.
2017
Kolpak, F., Dahnke, C., Tekkaya, A. E., 2017. Numerical Prediction of the Process Limits of Aluminum Chip Extrusion. In: WGP Jahreskongress 2017, Aachen, Germany, pp. 481-486.
Dahnke, C., Shapovalov, A., Tekkaya, A. E., 2017. Thermally activated lightweight actuator based on hot extruded shape memory metal matrix composites (SMA-MMC). In: Procedia Engineering 207: 12th International Conference on Technology of Plasticity, Cambridge, United Kingdom, pp. 1511-1516.
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)
Hering, O., Ossenkemper, S., Dahnke, C., Tekkaya, A. E., Nadolski, D.,  Schulz, A., Hoffmann, F., Zoch, H., 2017. Gezielte Prozesssteuerung bei der Kaltmassivumformung und Wärmebehandlung zur Minimierung des Verzugs. 06.04.2017.
Hering, O., Ossenkemper, S., Dahnke, C., Tekkaya, A. E., Nadolski, D., Schulz, A., Zoch, H. - W., 2017. Distortion Induced by Cold Forging and Subsequent Heat Treatment. SCT 2017, 18.-22.06.2017, Amsterdam, Niederlande.
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.
Ossenkemper, S., Dahnke, C., Ben Khalifa, N., Tekkaya, A. E., 2017.  Producing Steel-Aluminum-Composite Shafts with Conventional Cold Forging Tools. 50th ICFG Plenary Meeting (ICFG2017), 03.-06.2017, Shanghai, China
Schulze, A., Dahnke, C., Tekkaya, A. E., 2017. Developments in composite extrusion of complex profiles for automotive applications. Aluminium Two Thousand World Congress and International Conference on Extrusion and Benchmark ICEB 2017
2016
Ben Khalifa, N., Dahnke, C, Pietzka, D., Foydl, A., Tekkaya, A. E., 2016. Newest Developments in Composite Extrusion. 11th International Aluminum Extrusion Technology Seminar and Exposition, 02.-06.05.2016, Chicago, USA.
Dahnke, C., Lorch, Y., Haase, M., Ben Khalifa, N., Tekkaya, A. E., 2016. Manufacturing of Shape Memory Metal Matrix Composites (SM-MMCs) by Composite Extrusion. 11th International Aluminum Extrusion Technology Seminar and Exposition, 02.-06.05.2016, Chicago, USA, pp. 571-581.
Napierala, O., Dahnke, C., Tekkaya, A. E., Wälder, J., Felde, A., Liewald, M., 2016. Verfahren mit Potential für den Leichtbau – Hohl-Quer-Fließpressen. UMFORMtechnik 6
Napierala, O., Kolpak, F., Dahnke, C., Tekkaya, A. E., Wälder, J., Liewald, M., 2016. Potentials and Limits of Hallow Lateral Extrusion. ICFG 2016, 49th Plenary Meeting, 04.-07.09.2016, Stuttgart, Germany.
2015
Dahnke, C., Foydl, A., Levin, E., Haase, M., Tekkaya, A. E., 2015. Process window for the embedding of eccentric steel-reinforcing elements in the discontinuous composite extrusion process. Applied Mechanics and Materials 794, pp. 182-189
Citrea, T., Dahnke, C., Gagliardi, F., Haase, M., Ambrogio, G., Tekkaya, A. E., 2015. Optimization of Porthole Die for Non-symmetric Composite Profiles. In: Materials Today: Proceedings 2, Aluminium 2000 and International Conference on Extrusion and Benchmark (ICEB), Florence, Italy, pp. 4778-4785.
Dahnke, C., Foydl, A., Levin, E., Haase, M., Tekkaya, A. E., 2015. Process window for the embedding of eccentric steel-reinforcing elements in the discontinuous composite extrusion process. In: Advanced Materials Research, WGP Kongress 2015, Hamburg, Germany.
Dahnke, C., Hilbring, J., Kloppenborg, T., Haase, M., Tekkaya, A. E., 2015. Investigations for the Embedding of Functional Elements in the Composite Extrusion Process. In: Materials Today: Proceedings 2, Aluminium 2000 and International Conference on Extrusion and Benchmark (ICEB), Florence, Italy, pp. 4763-4770.
Dahnke, C., Selvaggio, A., Haase, M., Tekkaya, A. E., 2015. Developments in Composite Extrusion. JSTP International Seminar on Precision Forging (7th ISPF), Nagoya, Japan, pp. 119-122.
Selvaggio, A., Donati, L., Reggiani, B., Haase, M., Dahnke, C., Schwane, M., Tomesani, L., Tekkaya, A. E., 2015. Effect of Choking and Bearing Length on Metal Flow Balancing in Extrusion Dies. In: Materials Today: Proceedings 2, Aluminium 2000 and International Conference on Extrusion and Benchmark (ICEB), Florence, Italy, pp. 4704-4713.
2014
Dahnke, C., Pietzka, D., Haase, M., Tekkaya, A. E., 2014. Extending the Flexibility in the Composite Extrusion Process. In: Procedia CIRP Vol. 18, International Conference of Lightweight Components - ManuLight 2014, Dortmund, Germany
Schwane, M., Dahnke, C., Haase, M., Ben Khalifa, N, Tekkaya, A. E., 2014. Composite Hot Extrusion of Functional Elements. In: WGP Kongress 2014, 9.-10.9.2014 in Erlangen, Germany.
Schwane, M.,  Citrea, T., Dahnke, C., Haase, M., Ben Khalifaa, N., Tekkaya, A. E., 2014. Simulation of composite hot extrusion with high reinforcing Volumes. In: 11th International Conference on Technology of Plasticity, ICTP, Nagoya, Japan.