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2013 (bisherige)

Alharthi, N. H.; De Pari, L. Jr.; Güzel, A.; Jäger, A.; Misiolek, W. Z.; Tekkaya, A. Erman, 2013.
Modeling Surface Grain Structure Evolution in Aluminum Alloy 6082 Hot Direct Extrusion. In: Proceedings oft he 12th International Aluminium Conference, INALCO, October 21.-22., Montreal, Canada

Becker, C.; Isik, K.; Bayraktar, A.; Chatti, S.; Hermes, M.; Soyarslan, C.; Tekkaya, A. E., 2013.
Numerical Investigation of the Incremental Tube Forming Process, Esaform 2013, Key Engineering Materials 554-557, pp. 664-670.

Behrens, B. A.; Tekkaya, A. E.; Kosch, K. G.; Foydl, A.; Kammler, M.; Jäger, A., 2013.
Manufacturing of steel-reinforced aluminum parts by co-extrusion and subsequent forging. In: Advances in Hot Metal Extrusion and Simulation of Light Alloys,Proceedings of ICEB 2013, October 08-09, 2013, Dortmund, Germany, pp.149-156

Ben Khalifa, N.; Becker, C.; Jäger, A.; Kwiatkowski, L.; Selvaggio, A.; Tekkaya, A. E., 2013.
Geometric gradation of profiles for lightweight applications. In: Proceedings of the 6th JSTP International Seminar on Precision Forging Kyoto, Japan, pp. 23-30.

Chen, H.; Mennecar, T.; Güner, A.; Tekkaya, A. E., 2013.
Numerical Modeling of Press Hardening of Tubes and Profiles Using Shapeless Solid as Forming Media. In: 4th IN-TERNATIONAL CONFERENCE on Hot Sheet Metal Forming of High-Performance Steel, 2013, Lulea Sweden, pp.301-308.

Doig, M.; Isik, K.; Soyarslan, C.; Tekkaya, A. E., 2013.
Versagensvorhersage bei der Blechumformsimulation höchstfester Stähle. 20. Sächsische Fachtagung Umformtechnik SFU2013 27-28.11.2013, Dresden, Germany.

Foydl, A.; Kosch, K.-G.; Jäger, A.; Pfeiffer, I.; Tekkaya, A. E.; Behrens, B.-A., 2013.
Co-extrusion of discontinuosly steel-reinforced aluminium. In: Proceedings of the 6th JSTP International Seminar on Precision Forging Kyoto, Japan, pp.121-124.

Georgiadis, G.; Weigert, P.; Kurz, H.; Alsmann, M.; Engelhardt, P.; Tekkaya, A. E.; Scholtes, B., 2013.
Untersuchung der Herstellbarkeit dünner Warmumformbauteile, 8. Erlanger Workshop Warmblechumformung, 12. November 2013, Erlangen, Germany, pp. 147- 164

Gies, S; Weddeling, C.; Kwiatkowski, L.; Tekkaya, A. E., 2013.
Groove filling characteristics and strength of form-fit joints produced by die-less hydroforming, Esaform 2013, Key Engineering Materials 554-557, pp. 671-680.

Haase, M.; Jäger, A.; Tekkaya, A. E., 2013.
Recycling of aluminum chips by hot extrusion. In: Proceedings of the 4th Machining Innovations Conference, Hannover, Germany, pp. 197-201.

Hänisch, S.; Ossenkemper, S.; Jäger, A.; Tekkaya, A.E., 2013.
In: Forging Technology 2013, International Conference on „New Developments in Forging Technology”, June 04-05, 2013, Fellbach, Germany, pp. 347- 352

Hölker, R.; Jäger, A.; Ben Khalifa, N.; Tekkaya, A. E., 2013.
Cooling of extrusion dies manufactured by rapid tooling technologies. In: Proceedings of the 6th JSTP International Seminar on Precision Forging Kyoto, Japan, pp. 141-144.

Jäger, A., Selvaggio, A., Hänisch, S., Haase, M:, Becker, Ch., Kolbe, J., Ben Khalifa, N., Tekkaya, A. E., 2013.
Innovative Hybrid Process in Metal Forming, Proceedings of NAMRI/SME, 41, Madison, Wisconsin, USA, pp.

Kiliclar, Y.; Demir, O. K.; Vladimirov, I. N.; Kwiatkowski, L.; Reese, S.; Tekkaya, A. E.,2013. Simulation of electromagnetic forming of a cross-shaped cup by means of a viscoplasticity model coupled with damage at finite strains, Esaform 2013, Key Engineering Materials 554-557, pp. 2363-2368.

Kloppenborg, T.; Schwane, M.; Ben Khalifa, N.; Jäger, A.; Tekkaya, A. Erman, 2013.
Simulation Based Development and Analysis of Extrusion Processes. In: Proceedings of the European Aluminium Congress 2013, 25.-26. November 2013, Düsseldorf

May, D.; Terkowsky, C.; Haertel, T.; Pleul, C. 2013.
The laboratory in your hand; Making remote laboratories accesible through mobile devices, IEEE EDUCON2013, 13-15.03.2013, Berlin, Germany , pp. 35-344

Mennecart, T.; ul Hassan, H.; Fruth, J.; Wagner, T.; Güner, A.; Ben Khalifa, N.; Tekkaya, A. E.,2013:
Reduction of springback by use of deep drawing tools with locally and temporally varying stiffness, TTP2013, TOOLS AND TECHNOLOGIES FOR PROCESSING ULTRA HIGH STRENGTH MATERIALS, 2013 September 19 - 20 Graz, Austria

Ossenkemper, S.; Haase, M.; Soyarslan, C.; Jäger, A.; Tekkaya, A. E., 2013.
Tool design induced anisotropic flow behavior of hot extruded aluminum profiles. In: Advances in Hot Metal Extrusion and Simulation of Light Alloys, Proceedings of ICEB 2013, October 08-09, 2013, Dortmund, Germany, pp. 131-138

Pietzka, D.; Ben Khalifa, N.; Gerke, S.; Tekkaya, A. E., 2013.
Composite extrusion of thin aluminum profiles with hig reinforcing volume, Esaform 2013, Key Engineering Materials 554-557, pp. 801-808.

Pleul, C.; Hermes, M.; Chatti, S.; Tekkaya, A. E., 2013.
miniLABs - Drop in and become fascinated by engineering experiments. IEEE Global Engineering Education Conference 2013, March 13-15, Berlin, Germany.

Pleul, C., Hermes, M., Chatti, S., Tekkaya, A. E., 2013.
miniLABs Drop in and become fascinated by engineering experiments Focused experiments in manufacturing technology related to forming processes (a work in progress), IEEE EDUCON2013, 13-15.03.2013, Berlin, Germany, pp. 687-691

Schwane, M.; Kloppenborg, T.; Ben Khalifa, N.; Jäger, A.; Tekkaya, A. E., 2013.
Finite element based determination and optimization of seam weld positions in porthole die extrusion of double hollow profile with asymmetric cross section. In: Advances in Hot Metal Extrusion and Simulation of Light Alloys, Proceedings of ICEB 2013, October 08-09, 2013, Dortmund, Germany, pp.95-102

Schwane, M.; Gagliardi, F.; Jäger, A.; Ben Khalifa, N.; Tekkaya, A. E., 2013.
Modeling approach for the determination of material flow and welding conditions in porthole die extrusion with gas pocket formation, Esaform 2013, Key Engineering Materials, 55-557, pp. 787-793

Selvaggio, A.; Ben Khalifa, N.; Tekkaya, A. E., 2013.
Strangpressen von Profilen mit variabler Wandstärke. In: Forging Technology 2013, International Conference on „New Developments in Forging Technology”, June 04-05, 2013, Fellbach, Germany, pp. 353-357

Selvaggio, A.; Kloppenborg, T.; Schwane, M.; Hölker, R.; Jäger, A.; Donati, T. L., Tekkaya, A. E., 2013.
Extrusion Benchmark 2013 – Experimental analysis of mandrel deflection, local temperature and pressure in extrusion dies. In: Advances in Hot Metal Extrusion and Simulation of Light Alloys, Proceedings of ICEB 2013, October 08-09, 2013, Dortmund, Germany, pp. 13-22

Sieczarek, P., Kwiatkowski, L., Tekkaya, A. E., Krebs, E., Kersting, P., Tillmann, W., Herper, J., 2013.
Innovative tools to improve incremental bulk forming processes , Key Engineering Materials, 554-557, pp. 1490-1497, doi:10.4028/www.scientific.net/KEM.554-557.1490

Sieczarek, P., Kwiatkowski, L., Tekkaya, A. E., 2013.
Novel five-axis forming press for the incremental sheet-bulk metal forming, Key Engineering Materials, 554-557, pp. 1478-1483, doi:10.4028/www.scientific.net/KEM.554-557.1478

Schuster, A.; Raedt, H-W.; Tekkaya, A. E., 2013. Influence of Cold Upsetting on the Shape of the Microstructure and Inclusions in Different Kind of Steels and on the Notch Impact Energy. 46th ICFG Plenary Meeting, Proceedings International Cold Forging Group, 15.-18.09.2013, Paris, France.

ul Hassan, H.; Fruth, J.; Güner, A.;Mennecart, T.; Tekkaya, A. E., 2013. Finite element simulations for sheet metal forming process with functional input for the minimization of springback. IDDRG 2013 Conference June 2 – 5, 2013, Zurich, Switzerland.

2012

Becker, C., Staupendahl, D., Hermes, M., Chatti, S., Tekkaya, A. E., 2012.
Incremental tube forming and torque superposed spatial bending – A view on process parameters. In: Mori, K., Pietrzyk, M., Kusiak, J., Majta, J., Hartley, P., Lin, J. (Eds.), Steel Research International, Special Edition: 14th International Conference Metal Forming, Wiley, Weinheim, Germany, pp. 415-418.

Brosius, A., Weddeling, C., Hahn, M., Tekkaya, A. E., 2012.
Elektromagnetisches Schweißen von Aluminiumblechen. In: Neugebauer, R., Drossel, W-G. (Eds.), 4th International Conference on Accuracy in Forming Technology, ICAFT 2012, Verlag Wissenschaftliche Scripten, Auerbach, Germany, pp. 227-237.

Chatti, S., Pietzka, D., Ben Khalifa, N., Jäger, A., Selvaggio, A., Tekkaya, A. E., 2012.
Lightweight construction by means of profiles. In: Merklein, M., Hagenah, H. (Eds.), Key Engineering Materials 504-506, Special Edition: Material Forming ESAFORM 2012, Trans Tech Publications, Zurich-Durnten, Switzerland, pp. 369-374.

Demir, O. K., Kwiatkowski, L., Brosius, A., Tekkaya, A. E., 2012.
Exceeding the forming limit curve with deep drawing followed by electromagnetic calibration. In: Tekkaya, A. E., Daehn, G. S., Kleiner, M. (Eds.), High Speed Forming 2012, Proceedings of the International Conference, Dortmund, Germany, pp.277-282.

Donati, L., Ben Khalifa, N., Tomesani, L., Tekkaya, A. E., 2012.
A review of FEM code accuracy for reliable extrusion process analysis: Extrusion benchmarks 2009 and 2011. In: Proceedings of the Tenth International Aluminium Extrusion Technology Seminar ET´12, Miami, Florida (USA), pp. 481-491.

Donati, L., Ben Khalifa, N., Tomesani, L., Tekkaya, A. E., 2012.
Effect of porthole design and welding chamber dimensions on material flow and weld deformability of extruded aluminium profiles. In: Merklein, M., Hagenah, H. (Eds.), Key Engineering Materials 504-506, Special Edition: Material Forming ESAFORM 2012, Trans Tech Publications, Zurich-Durnten, Switzerland, pp. 523-528.

Foydl, A., Pfeiffer, I., Kammler, M., Pietzka, D., Jäger, A., Tekkaya, A. E., Behrens, B.-A., 2012.
Manufacturing of steel-reinforced aluminum products by combining hot extrusion and closed-die forging. In: Merklein, M., Hagenah, H. (Eds.), Key Engineering Materials 504-506, Special Edition: Material Forming ESAFORM 2012, Trans Tech Publications, Zurich-Durnten, Switzerland, pp. 481-486.

Foydl, A., Turan, E., Jäger, A., Tekkaya, A. E., 2012.
Influence of steel reinforcement geometry on position and embedding quality in discontinuously-reinforced, co-extruded aluminum profiles. In: Proceedings of the Tenth International Aluminium Extrusion Technology Seminar ET´12, Miami, Florida (USA), pp. 665-674.

Gies, S., Weddeling, C., Marré, M., Kwiatkowski, L., Tekkaya, A. E., 2012.
Analytic prediction of the process parameters for form-fit joining by die-less hydroforming. In: Merklein, M., Hagenah, H. (Eds.), Key Engineering Materials 504-506, Special Edition: Material Forming ESAFORM 2012, Trans Tech Publications, Zurich-Durnten, Switzerland, pp. 393-398.

Güley, V., Haase, M., Jäger, A., Tekkaya A. E., 2012.
Hot extrusion of aluminum chips. In: Weiland, H., Rollet, A. D., Cassada, W. A. (Eds.), Proceedings of the 13th International Conference on Aluminium Alloys ICAA-13, John Wiley and Sons, Hoboken, New Jersey (USA), pp. 1559-1573.

Güley, V., Jäger, A., Tekkaya, A. E., 2012.
The effect of die design on the mechanical properties of profiles recycled from AA6060 chips by hot extrusion. In: Proceedings of the Tenth International Aluminium Extrusion Technology Seminar ET´12, Miami, Florida (USA),pp. 391-398.

Güzel, A., Holzweissig, M. J., Jäger, A., Tekkaya, A. E., Maier, H. J., 2012.
Prediction of dynamic grain structure evolution during hot extrusion of EN AW–6082. In: Heim, H.-P., Biermann, D., Maier, H. J., (Eds.), 1st International Conference on Thermo-Mechanically Graded Materials, Verlag Wissenschaftliche Scripten, Auerbach, Germany,

Güzel, A., Jäger, A., Ben Khalifa, N., Tekkaya, A. E., 2012.
Investigation of the dynamic grain structure evolution during hot extrusion of EN AW–6082. In: Proceedings of the Tenth International Aluminium Extrusion Technology Seminar ET´12, Miami, Florida (USA), pp. 603-609.

Haase, M., Jäger, A., Tekkaya, A. E., 2012.
Influence of extrusion ratio on AA6060 aluminum alloy chips solid state recycled by integrated extrusion and equal channel angular pressing. In: Mori, K., Pietrzyk, M., Kusiak, J., Majta, J., Hartley, P., Lin, J. (Eds.), Steel Research International, Special Edition: 14th International Conference Metal Forming, Wiley, Weinheim, Germany, pp. 479-482.

Hänisch, S., Ossenkemper, S., Jäger, A., Ben Khalifa, N., Tekkaya, A. E., Nadolski, D., Schulz, A., Hoffmann, F., Zoch, H.-W., 2012.
Distortion in cold forging and cold drawing. In: Ishikawa, T., Yoshida, Y., Hayakawa, K., Wang, Z. G. (Eds.), Proceedings of the 45th ICFG Plenary Meeting, Nagoya, Japan, pp. 32-38.

ul Hassan, H., Ivanov, M., Fruth, J., Kuhnt, S., Kolbe, J., Tekkaya, A. E., 2012.
Planung und Analyse von FE-Simulationen von Blechumformprozessen mit funktionalem Input. In: Tillmann, W., Nebel, J. (Eds.), Sonderforschungsbereich 708, 5. öffentliches Kolloquium, Verlag Praxiswissen, Dortmund, Germany, pp.173-183.

Hermes, M., Staupendahl, D., Becker, C., Weinrich, A., Tekkaya, A. E., Kleiner, M., 2012.
Bending of tubes, profiles and sheet metals for lightweight structures. In: Gronstojanski, Z. (Ed.), Advanced Metal Forming Processes in Automotive Industry – The 3rd International Lower Silesia-Saxony Conference AutoMetForm, Wroclaw, Poland, pp. 251-263.

Hölker, R., Jäger, A., Ben Khalifa, N., Tekkaya, A. E., 2012.
New concepts for cooling of extrusion dies manufactured by rapid tooling. In: Tomesani, L., Donati, L. (Eds.), Progress in Extrusion Technology and Simulation of Light Metal Alloys, Selected, peer reviewed papers from the ICEB 2011, Key Engineering Materials 491, Trans Tech Publications, Zurich-Durnten, Switzerland, pp. 223-232.

Hölker, R., Jäger, A., Tekkaya, A. E., 2012.
Rapid laminated hot extrusion dies with integrated cooling channels. In: Mori, K., Pietrzyk, M., Kusiak, J., Majta, J., Hartley, P., Lin, J. (Eds.), Steel Research International, Special Edition: 14th International Conference Metal Forming, Wiley, Weinheim, Germany, pp. 503-506.

Jäger, A., Tekkaya, A. E., 2012.
Analysis of the radial workpiece displacement in electromagnetic forming applied subsequent to hot aluminum extrusion. In: Mori, K., Pietrzyk, M., Kusiak, J., Majta, J., Hartley, P., Lin, J. (Eds.), Steel Research International, Special Edition: 14th International Conference Metal Forming, Wiley, Weinheim, Germany, pp. 527-530.

Jäger, A., Tekkaya, A. E., 2012.
Online measurement of the radial workpiece displacement in electromagnetic forming subsequent hot aluminium extrusion. In: Tekkaya, A. E., Daehn, G. S., Kleiner, M. (Eds.), High Speed Forming 2012, Proceedings of the International Conference, Dortmund, Germany, pp. 13-22.

Kiliclar, Y., Demir, O. K., Vladimirov, I. N., Kwiatkowski, L., Brosius, A., Reese, S., Tekkaya, A. E., 2012.
Combined simulation of quasi-static deep drawing and electromagnetic forming by means of a coupled damageviscoplasticity model at finite strains. In: Tekkaya, A. E., Daehn, G. S., Kleiner, M. (Eds.), High Speed Forming 2012, Proceedings of the International Conference, Dortmund, Germany, pp. 325-334.

Kloppenborg, T., Brosius, A., Tekkaya, A. E., 2012.
Optimierung des Verbundstrangpressens. In: 15. Workshop Simulation in der Umformtechnik, Optimierung von Prozessen in der Blech- und Massivumformung, Stuttgart, Germany, pp. 8-18.

Kloppenborg, T., Schwane, M., Ben Khalifa, N., Tekkaya, A. E., Brosius, A., 2012.
Experimental and numerical analysis of material flow in porthole die extrusion. In: Tomesani, L., Donati, L. (Eds.), Progress in Extrusion Technology and Simulation of Light Metal Alloys, Selected, peer reviewed papers from the ICEB 2011, Key Engineering Materials 491, Trans Tech Publications, Zurich-Durnten, Switzerland, pp. 97-104.

Kolbe, J., Tekkaya, A. E., 2012.
Entwicklung und Untersuchung steifigkeitsangepasster hybrider Tiefziehwerkzeuge auf Polymerbasis. In: Tillmann, W., Nebel, J. (Eds.), Sonderforschungsbereich 708, 5. öffentliches Kolloquium, Verlag Praxiswissen, Dortmund, Germany, pp. 147-157.

Kwiatkowski, L., Demir, O. K., Gies, S., Tekkaya, A. E.,2012.
Recent developments in non-conventional tube forming. In: Proceedings of the North American Manufacturing Research Institution of the Society of Manufacturing Engineers, NAMRC, Vol. 40, Notre Dame, Indiana (USA).

Mennecart, T., Brosius, A., Kolbe, J., Tekkaya, A. E., 2012.
Prediction of the forming behaviour of tailor welded blanks using a modified mixture rule. In: Tewari, A., Narasimhan, K., Date, P. P. (Eds.), Lightweighting: Possibilities and Challenges, Part I, International Deep Drawing Research Group Conference, Mumbai, India, pp. 361-366.

Pfeiffer, I., Foydl, A., Kammler, M., Matthias, T., Kosch, K.-G., Jäger, A., Ben Khalifa, N., Tekkaya, A. E., Behrens, B.-A., 2012.
Compound forging of hot-extruded steel-reinforced aluminum parts. In: Mori, K., Pietrzyk, M., Kusiak, J., Majta, J., Hartley, P., Lin, J. (Eds.), Steel Research International, Special Edition: 14th International Conference Metal Forming, Wiley, Weinheim, Germany, pp. 159-162.

Pietzka, D., Lueg-Althoff, J., Tekkaya, A. E., 2012.
Innovative Umformverfahren für den Fahrzeugleichtbau, 2. VDI-Leichtbaukongress: Leichtbaustrategien für den Automobilbau, Stuttgart, Germany.

Psyk, V., Gerstein, G., Barlage, B., Albuja, B., Gies, S., Tekkaya, A. E., Bach, F.-W., 2012.
Process model and design for magnetic pulse welding by tube expansion. In: Tekkaya, A. E., Daehn, G. S., Kleiner, M. (Eds.), High Speed Forming 2012, Proceedings of the International Conference, Dortmund, Germany, pp. 197-206.

Schwane, M., Kloppenborg, T., Reeb, A., Ben Khalifa, N., Brosius, A., Weidenmann, K. A., Tekkaya, A. E., 2012.
Numerical approach for the evaluation of seam welding criteria in extrusion processes. In: Merklein, M., Hagenah, H. (Eds.), Key Engineering Materials 504-506, Special Edition: Material Forming ESAFORM 2012, Trans Tech Publications, Zurich-Durnten, Switzerland, pp. 517-522.

Sebastiani, G., Wawrosch, A., Franzen, V., Brosius, A., Tekkaya, A. E., 2012.
FlexDie: A flexible tooling-concept for incremental sheet forming. In: Merklein, M., Hagenah, H. (Eds.), Key Engineering Materials 504-506, Special Edition: Material Forming ESAFORM 2012, Trans Tech Publications, Zurich-Durnten, Switzerland, pp. 883-888.

Selvaggio, A., Ben Khalifa, N., Chatti, S., Tekkaya, A. E., 2012.
Manufacture of profiles with variable cross-sections, curvatures and twistings by influencing the material flow in hot extrusion. In: Mori, K., Pietrzyk, M., Kusiak, J., Majta, J., Hartley, P., Lin, J. (Eds.), Steel Research International, Special Edition: 14th International Conference Metal Forming, Wiley, Weinheim, Germany, pp. 507-510.

Selvaggio, A., Chatti, S., Ben Khalifa, N., Tekkaya, A. E., 2012.
New developments in extrusion of profiles with variable curvatures and cross-sections. In: Proceedings of the Tenth International Aluminium Extrusion Technology Seminar ET´12, Miami, Florida (USA), pp. 505-512.

Selvaggio, A., Segatori, A., Güzel, A., Donati, L., Tomesani, L., Tekkaya, A. E., 2012.
Extrusion Benchmark 2011: Evaluation of different design strategies on process conditions, die deflection and seam weld quality in hollow profiles. In: Tomesani, L., Donati, L. (Eds.), Progress in Extrusion Technology and Simulation of Light Metal Alloys, Selected, peer reviewed papers from the ICEB 2011, Key Engineering Materials 491, Trans Tech Publications, Zurich-Durnten, Switzerland, pp. 1-10.

Sieczkarek, P., Kwiatkowski, L., Tekkaya, A. E., Krebs, E., Biermann, D., Tillmann, W., Herper, J., 2012.
Improved tool surfaces for incremental bulk forming processes of sheet metals. In: Merklein, M., Hagenah, H. (Eds.), Key Engineering Materials 504-506, Special Edition: Material Forming ESAFORM 2012, Trans Tech Publications, Zurich-Durnten, Switzerland, pp. 975-980.

Steinbach, F., Koch, L., Hermann, M., Witulski, J., Tekkaya, A. E., 2012.
Processing of new solar absorbers in steel design based on partially cold roll bonded hybrid semi-finished parts. In: Merklein, M., Hagenah, H. (Eds.), Key Engineering Materials 504-506, Special Edition: Material Forming ESAFORM 2012, Trans Tech Publications, Zurich-Durnten, Switzerland, pp. 137-142.

Tekkaya, A. E., 2012.
Recent developments in bulk metal forming. In: Ishikawa, T., Yoshida, Y., Hayakawa, K., Wang, Z. G. (Eds.), Proceedings of the 45th ICFG Plenary Meeting, Nagoya, Japan, pp. 48-57.

Tekkaya, A. E., Franzen, V., Hiegemann, L., 2012.
Inkrementelle Walzbearbeitung thermisch gespritzter Werkzeugwirkflächen und deren Einsatzverhalten in der Blechumformung. In: Tillmann, W., Nebel, J. (Eds.), Sonderforschungsbereich 708, 5. öffentliches Kolloquium, Verlag Praxiswissen, Dortmund, Germany, pp. 33-41.

Tekkaya, A. E., Güley, V., Haase, M., Jäger, A., 2012.
Hot extrusion of aluminium chips. In: Weiland, H., Rollet, A. D., Cassada, W. A. (Eds.), Proceedings of the 13th International Conference on Aluminium Alloys ICAA-13, John Wiley and Sons, Hoboken, New Jersey (USA), pp. 1559-1574.

Weddeling, C., Gies, S., Nellesen, J., Kwiatkowski, L., Tillmann, W., Tekkaya, A. E., 2012.
Influencing factors on the strength of electromagnetically produced form-fit joints using knurled surfaces. In: Tekkaya, A. E., Daehn, G. S., Kleiner, M. (Eds.), High Speed Forming 2012, Proceedings of the International Conference, Dortmund, Germany, pp. 243-254.

Weinrich, A., Hermes, M., Chatti, S., Tekkaya, A. E., 2012.
Experimental and numerical investigations on incremental stress superposition in air bending. In: Mori, K., Pietrzyk, M., Kusiak, J., Majta, J., Hartley, P., Lin, J. (Eds.), Steel Research International, Special Edition: 14th International Conference Metal Forming, Wiley, Weinheim, Germany pp. 423-426.

Yin, Q., Brosius, A., Tekkaya, A. E., 2012.
Möglichkeiten des ebenen Torsionsversuchs für die Charakterisierung des Verfestigungsverhaltens von Blechwerkstoffen. In: Borsutzki, M., Moninger, G. (Eds.), Fortschritte in der Werkstoffprüfung für Forschung und Praxis, Tagung für Werkstoffprüfung 2012, Verlag Stahleisen, Düsseldorf, Germany, pp 51-56.

2011

Alkas Yonan, S.; Haupt, P.; Kwiatkowski, L.; Franzen, V.; Brosius, A.; Tekkaya, A. E.
A Viscoplastic Material Model Based on Overstress for the Simulation of Incremental Sheet Forming of Thermoplastics, 14th International Conference on Material Forming, ESAFORM 2011, 27.-29.04.2011, Queen’s University, Belfast (UK), pp. 803-808.

Alkas Yonan, S.; Haupt, P.; Kwiatkowski, L.; Franzen, V.; Brosius, A.; Tekkaya, A. E.
Three-Dimensional Formulation and Validation of a New Viscoplastic Material Model for the Simulation of lncremental Forming of Thermoplastics, International Conference on Technology of Plasticity, ICTP 2011, 25.-30.09.2011, Aachen (Germany), pp. 973-977.

Becker, C.; Hermes, M.; Tekkaya, A. E.
Machine concepts for Incremental Tube Forming, DORP 2011 - 4th Dortmund Tube and Profile Bending Colloquium, 24.-25.11.2011, Dortmund (Germany), pp. 21-24.

Ben Khalifa, N.; Tekkaya, A. E.
Newest Developments on the manufacture of helical profiles by hot extrusion, Proceedings of the ASME 2011 International Manufacturing Science and Engineering Conference MSEC 2011, 13.-17.06.2011, Corvallis (Oregon), pp. 1-5.

Canpolat, A.; Gerlach, J.; Kessler, L.; Tekkaya, A. E.
Aspects for a calibration of yield locus models with biaxial cruciform tests, International Conference on Technology of Plasticity, ICTP 2011, 25.-30. 09. 2011, Aachen (Germany), pp. 817-822.

Chu, Y. Y.; Psyk, V.; Tekkaya, A. E.; Lee, R. S.
Frequency Effect on Electromagnetic Free Impacting Velocity, International Conference on Technology of Plasticity, ICTP 2011, 25.-30.09.2011, Aachen (Germany), pp. 1148-1153.

Cwiekala, T.; Brosius, A.; Tekkaya, A. E.
Analytical Simulation of Deep Drawing Processes, Proceedings of IDDRG 2011, IDDRG Conference 2011, 05.-08.06.2011, Bilbao (Spain).

Donati, L.; Ben Khalifa, N.; Tomesani, L.; Tekkaya, A. E.
Comparison of different FEM codes approach for extrusion process analysis, TMS Annual Meeting 2 (2011), 27.02.-03.03.2011, San Diego, California (USA), pp. 245-252.

Foydl, A.; Haase, M.; Ben Khalifa, N.; Tekkaya, A. E.
Co-extrusion of Discontinuously, Non-centric Steel reinforced Aluminum, 14th International Conference on Material Forming, ESAFORM 2011, 27.-29.04.2011, Queen`s University, Belfast (UK), pp. 443-448.

Franzen, V.; Tekkaya, A. E.
Kontaktbeschreibung beim Glattwalzen, Sonderforschungsbereich 708, 4. Öffentliches Kolloquium, 15.11.2011, Dortmund (Germany), pp. 37-46.

Güley, V.; Ben Khalifa, N.; Tekkaya, A. E.
The Effect of Extrusion Ratio and Material Flow on the Mechanical Properties of Aluminum Profiles Solid State Recycled from 6060 Aluminum Alloy Chips, 14th International Conference on Material Forming, ESAFORM 2011, 27.-29.04.2011, Queen`s University, Belfast (UK), pp. 1609-1614.

Güley, V.; Ben Khalifa, N.; Tekkaya, A. E.
The Effect of Extrusion Ratio and Die Design on the Mechanical Properties of Aluminum Profiles Solid State Recycled from 6060 Aluminum Alloy Chips, 6th Int. Conference and Exhibition on Design and Production of Machines and Dies/Molds, 23.-26.06.2011, Ankara (Turkey), S. 99-101.

Güner, A.; Soyarslan, C.; Brosius, A.; Tekkaya, A. E.
Characterization of Initial Anisotropy of Sheet Metals Employing Inhomogeneous Strain Fields, AIP Conference Proceedings 1383 (2011), Numisheet 2011, 23.08.2011, Seoul (Korea), pp. 750-757.

Güzel, A.; Jäger, A.; Ben Khalifa, N.; Tekkaya, A. E.
Influence of Geometric Parameters of Die and Billet on Plastic Flow during Composite Rod Extrusion, Proceedings of the International Conference on Extrusion and Benchmark (ICEB 2011), 03.-05.10.2011, Bologna (Italy), pp. 102-111.

Haase, M.; Pietzka, D.; Ben Khalifa, N.; Tekkaya, A. E.
Manufacturing of discontinuous steel-reinforced aluminum profiles by means of co-extrusion, Proceedings of The Aluspecialists‘ Meeting Aluminium Two Thousand 7th World Congress, 17.-21.05.2011, Bologna (Italy).

Hänisch, S.; Nadolski, D.; Ben Khalifa, N.; Schulz, A.; Tekkaya, A. E.; Hoffmann, F.; Zoch, H.-W.
Distortion in Cold Forging, 12th International Cold Forging Congress Proceedings, 12th ICFC 2011, 19.05.2011, Fellbach (Germany), pp. 35-39.

Hänisch, S.; Nadolski, D.
Analyse der Wirkzusammenhänge zwischen Wärmebehandlung und Verzug von Kaltmassivumformteilen, Tagungsband AiF-Anwenderforum „Verzug in der Kaltmassivumformung“, 27.10.2011, Düsseldorf (Germany).

Hölker, R.; Jäger, A.; Ben Khalifa, N.; Tekkaya, A. E.
New Concepts for Cooling of Extrusion Dies Manufactured by Rapid Tooling, Proceedings of the International Conference on Extrusion and Benchmark (ICEB 2011), 03.-05.10.2011, Bologna (Italy), pp. 64-65.

Hudovernik, M.; Staupendahl D.; Hermes, M.; Kuzman, K.; Tekkaya, A. E.; Slabe, J. M.
Numerical Simulation of Two Dimensional Profile Bending using the Torque Superposed Spatial Bending Method, Proceedings of the 8th International Conference on Industrial Tools and Material Processing Technologies - ICIT&MPT 2011, 02-05.10.2011, Ljubljana (Slovenia), pp. 111-116.

Hudovernik, M.; Staupendahl, D.; Hermes, M.; Kuzman, K.; Tekkaya, A. E.; Slabe, J. M.
Numerical Simulation of Profile Bending using the TSS Bending Method, DORP 2011 - 4th Dortmund Tube and Profile Bending Colloquium, 24.-25.11.2011, Dortmund (Germany), pp. 101-104.

Isik, K.; Soyarslan, C.; Richter, H.; Tekkaya, A. E.
Analysis of formability of advanced high strength steel sheets with phenomenologically based failure criteria with separate treatment of instability, shear and normal fracture, 8th European LS-DYNA Users Conference, 23.-24.05.2011, Strasbourg (France).

Kloppenborg, T.; Schwane, M.; Ben Khalifa, N.; Tekkaya, A. E.; Brosius, A.
Experimental and numerical analysis of material flow in porthole die extrusion, International Conference on Extrusion and Benchmark, Conference Proceedings Latest Advances in Extrusion Technology and Simulation and 4th Extrusion Benchmark, ICEB 2011“, 03.-05.10. 2011,Bologna (Italien), pp. 39-40.

Koch, L.; Hermann, M.; Steinbach, F.; Trompeter, M.; Tekkaya, A. E.
Entwicklung von Solarabsorbern aus Stahl auf Basis partiell plattierter Hybridhalbzeuge, 21. Symposium Thermische Solarenergie, 11.-13.05.2011, Bad Staffelstein (Germany), pp. 59-64.

Malekipour Gharbi, M.; Soyarslan, C.; Hermes, M.; Brosius, A.; Tekkaya, A. E.
Failure Analysis in Bending of a Class of High Strength Steel Sheets Using Porous Plasticity Tools and Technologies for Processing Ultra High Strength Materials, TTP 2011, Science meets Industry, 19.-21.09.2011, Graz (Austria), pp. 383-394.

Melsheimer, O.; Sebastiani, G.; Wenzel, S.; Tekkaya, A. E.; Kunert, J.
Aufbereitung von optischen Messdaten zur Analyse der asymmetrischen inkrementellen Blechumformung (AIBU), SFB 823 Discussion Paper, 51 (2011).

Mennecart, T.; Rostek, T.; Witulski, J.; Brosius, A.; Tekkaya, A. E.
Presshärten von Rohren und Profilen mittels formloser fester Stoffe, 6. Erlanger Workshop Warmblechumformung, 17.11.2011, Erlangen (Germany), pp. 117-128.

Merklein, M.; Tekkaya, A. E.; Brosius, A.; Opel, S.; Koch, J.
Overview on Sheet-Bulk Metal Forming Processes, International Conference on Technology of Plasticity, ICTP 2011, 25.-30.09.2011, Aachen (Germany), pp. 1109-1114.

Nadolski, D.; Hänisch, S.; Schulz, A.; Ben Khalifa, N.; Hoffmann, F.; Zoch, H.-W.; Tekkaya, A. E.
Distortion related aspects of cold forging as part of the manufacturing process, 3rd IDE 2011, Distortion Engineering 2011, 14.-16.09.2011, Bremen (Germany), pp. 267-274.

Pantke, K.; Güley, V.; Biermann, D.; Tekkaya, A. E.
Aluminum Scrap Recycling without Melting, 1. WGP-Jahreskongress, Megatrend: Ressourceneffizienz, 08.-09.06.2011, Berlin (Germany).

Pleul, C.; Staupendahl, D.; Tekkaya, A. E.
Master of Science in Manufacturing Technology (MMT), Tagungsband TeachING-LearnING.EU Fachtagung, Symposium „Next Generation Engineering Education”, 08.06.2011, Aachen (Germany), p. 97.

Pleul, C.; Tekkaya, A. E.
ProLab@Ing: Project-based Laboratory for Engineering Education in Forming Technology, Tagungsband TeachING-LearnING.EU Fachtagung, Symposium „Next Generation Engineering Education“, 08.06.2011, Aachen (Germany), p.96.

Pleul, C.; Terkowsky, C.; Jahnke, I.; Tekkaya, A. E.
Interactive Demonstration of PeTEX - Platform for e-Learning and Telemetric Experimentation - Enhancedlaboratory experiments for engineering education, Proceedings of REV 2011, REV 2011 International Conference on Remote Engineering und Virtual Instrumentation, 28.06.-01.07.2011, Brasov (Romania), pp. 186-190.

Pleul, C.; Terkowsky, C.; Jahnke, I.; Tekkaya, A. E.
Platform for e-learning and tele-operative experimentation (PeTEX). Holistically integrated laboratory experiments for engineering education in manufacturing technology, 1st World Engineering Education Flash Week, 27.09.-04.10.2011, Pavilhão Atlântico, Lisbon (Portugal), pp. 578-585.

Plugge, B.; Schunck, S.; Kwiatkowski, L.; Brosius, A.; Tekkaya, A. E.
Investigation of Forming Strategies to Set up Mechanical Properties of Parts Made by Incremental Sheet Bulk Rolling, The 14th International Conference on Material Forming, ESAFORM 2011, 27.-29.04.2011, Queen’s University, Belfast (UK), pp. 195-200.

Rocha, A. S.; Haenisch, S.; Coser, T. B.; de Souza, T. F.; Soares, C. A. T.
Simulação Computacional de um Processo de Trefilação para Produção de Barras Redondas de Aço AISI 1045, Revista Escola de Minas, 2011.

Rocha, A.; Hänisch, S.; Coser, B.; de Souza, T. F.; Soares, C. A. T.
Simulação computacional de um processo de trefilação para produção de barras redondas de aço AISI 1045 - Computational simulations of a wire-drawing process in the production of AISI 1045 steel bars, Metallurgy and materials, 2011, pp. 513-518.

Rocha, A. S.; Nunes, R. M.; de Souza, T. F.; Soares, C. A. T.; Hänisch, S.; Tekkaya, A. Erman; Hirsch, T.
Experimental characterization and simulation of a wire drawing process and related distortion potentials, 3rd International Conference on Distortion Engineering IDE 2011, 14.-16.09.2011, Bremen (Germany), pp. 229-237.

Rudolf, S.; Schwane, M.; Felde, A.; Ben Khalifa, N.; Liewald, M.; Tekkaya, A. E.
The Influence of Wall Thickness on Hollow Lateral Extrusion of Tubular Billets, Proceedings of the 12th International Cold Forging Congress (ICFC), 19.05.2011, Fellbach (Germany), pp. 15-21.

Schuster, A.; Raedt, H.-W.; Tekkaya, A. E.
lnfluence of a Forging Operation on the Deformation of lnclusions, International Conference on Technology of Plasticity, ICTP 2011, 25.-30.09.2011, Aachen (Germany), pp. 198-203.

Segatori, A.; Foydl, A.; Donati, L.; Ben Khalifa, N.; Brosius, A.; Tomesani, L.; Tekkaya, A. E.
Investigation And Prediction of Grain Texture Evolution in AA6082, The 14th International Conference on Material Forming, ESAFORM 2011, 27.-29.04.2011, Queen’s University, Belfast (UK), pp. 449-454.

Selvaggio, A.; Segatori, A.; Güzel, A.; Donati, L.; Tomesani, L.; Tekkaya A. E.
Extrusion Benchmark 2011: Evaluation of different design strategies on process conditions, die deflection and seam weld quality in hollow profiles, Conference Proceedings „Latest Advances in Extrusion Technology and Simulation and 4th Extrusion Benchmark”, ICEB 2011, 03.-05.10.2011, Bologna (Italien), pp. 3-5.

Selvaggio, A.; Tekkaya, A. E.
Extrusion of 3D-Curved Profiles, Werkstoff-Forum Intelligenter Leichtbau, 04.-08.04.2011, Hannover (Germany).

Staupendahl, D.; Becker, C; Hermes, M.; Tekkaya, A. E.; Kleiner, M.
New methods for manufacturing 3D-bent lightweight structures, Proceedings of the 3rd International Conference on Steels in Cars and Trucks, SCT 2011, 05.-09.06.2011, Salzburg (Austria), pp. 120-129.

Staupendahl, D.; Hermes, M.; Tekkaya, A. E.
Process Limit Extension of the TSS Profile Bending Process, DORP 2011 – 4th Dortmund Tube and Profile Bending Colloquium 2011, 24.11.2011, Dortmund (Germany), pp. 85-88.

Taebi, F.; Demir, O. K.; Stiemer, M.; Psyk, V.; Brosius, A.; Blum, H.; Tekkaya, A. E.
Computational Design and Forming Limits of Process Chains Composed of Quasistatic and Dynamic Processes, International Conference on Technology of Plasticity, ICTP 2011, 25.-30.09.2011, Aachen (Germany), pp. 1164-1169.

Tekkaya, A. E.; Kloppenborg, T.; Ben Khalifa, N.
Rechnergestützte Auslegung und Entwicklung von Strangpressprozessen, Umformtechnisches Kolloquium, 23.-24.02.2011, Hannover (Germany).

Tekkaya, A. E; Hänisch, S.; Nadolski, D.; Ben Khalifa, N.; Schulz, A.; Zoch, H.-W.; Hoffmann, F.
Verzug von kaltumgeformten Bauteilen nach der Wärmebehandlung, Tagungsband VDI-Wissensforum, 26. Jahrestreffen der Kaltmassivumformer, 02.-03.03.2011, Düsseldorf (Germany).

Terkowsky, C.; Jahnke, I.; Pleul, C.; Tekkaya, A. E.
Platform for E-Learning and Telemetric Experimentation (PeTEX) - Tele-Operated Laboratories for Production Engineering Education, Proceedings of the 2011 IEEE Global Engineering Education Conference (EDUCON) – Learning Environments and Ecosystems in Engineering Education, 04.-06.04.2011, Amman (Jordan), pp. 491-497.

Terkowsky, C.; Pleul, C.; Tekkaya, A. E.; Jahnke, I.
PeTEX - Platform for eLearning and Telemetric Experimentation, Praxiseinblicke - Forschendes Lernen in den Ingenieurwissenschaften, 2011, pp. 28-31.

Yin, Q.; Brosius, A.; Tekkaya, A. E.
Sheet Metal Characterization by Plane Torsion, Proceedings of IDDRG 2011, IDDRG Conference 2011, 05.-08.06.2011, Bilbao (Spain).