Lehrstuhl für Fertigungstechnologie, Universität Erlangen-Nürnberg



Modeling and Simulation (until 2016)



Finite Elemente                Knowledge Based Methods
  • Abaqus
  • Pamstamp
  • LS/Dyna
  • Forge
  • Simufact
  • Autoform
  • Approximation models
  • Six Sigma
  • Design of Experiments
  • Optimisation
  • Fuzzy-Logic
  • Artificial Neural Networks




Participants

Head of Research Group

    Members


    Projects


    Publications

      2016

      • Hildenbrand, P.; Lechner, M.; Merklein, M.:
        A new strategy for manufacturing tailored blanks by a flexible rolling process.
        Materials Science Forum 854(2016), pp. 99-105

      • Merklein, M.; Lechner, M.; Gröbel, D.; Löffler, M.; Schneider, T.; Schulte, R.; Hildenbrand, P.:
        Innovative approaches for controlling the material flow in sheet-bulk metal forming processes.
        Manufacturing Review 3(2016)2, pp. 1-17

      • Gröbel, D.; Schulte, R.; Hildenbrand, P.; Lechner, M.; Engel, U.; Sieczkarek, P.; Wernicke, S.; Gies, S.; Tekkaya, A.E.; Behrens, B.A.; Hübner, S.; Vucetic, M.; Koch, S.; Merklein, M.:
        Manufacturing of functional elements by sheet-bulk metal forming processes.
        Production Engineering: Research and Development 10(2016)1, pp. 63-80

      • Stellin, T.; van Tijum, R.; Engel, U.:
        Modelling and experimental study of a microforging process from metal strip for the reduction of defects in mass production.
        Prod. Eng. Res. Dev. 10(2016)2, pp. 103-112

      • Merklein, M.; Tsoupis, I.:
        Einfluss einer Vorlochung auf biegedominierte Umformprozesse.
        EFB-Forschungsbericht Nr. 450, : Hannover: EFB, 2016

      2015

      • Hagenah, H.; Merklein, M.; Lechner, M.; Schaub, A.; Lutz, S.:
        Determination of the mechanical properties of hot stamped parts from numerical simulations.
        Procedia CIRP 33(2015), pp. 167-172

      • Hildenbrand, P.; Schneider, T.; Merklein, M.:
        Flexible Rolling of Process Adapted Semi-finished Parts and its Application in a Sheet-Bulk Metal Forming Process.
        Key Engineering Materials 639(2015), pp. 259-266

      • Tsoupis, I.; Merklein, M.:
        Numerical Prediction of Failure within Small Curvature Bending of Advanced High Strength Steels.
        Key Eng. Mater. 639(2015), pp. 419-426

      • Hildenbrand, P.; Sieczkarek, P.; Matthias, S.; Löffler, M.; Besserer, H.:
        Inkrementelles Umformen dünnwandiger Funktionsbauteile unter Einsatz prozessangepasster Halbzeuge durch Verfahren der Blechmassivumformung.
        In: Tagungsband zum 18. Workshop Simulation in der Umformtechnik & 3. Industriekolloquium Blechmassivumformung 2015 - DFG Transregio 73 (Edtrs.): Tekkaya, A. E.; Liewald, M.; Merklein, M.; Behrens, B.-A., Shaker Verlag Aachen, 2015, pp. 149-170

      • Gröbel, D.; Hildenbrand, P.; Engel, U.; Merklein, M.:
        Influence of tailored blanks on forming of cold forged functional elements in a sheet bulk metal forming process.
        In: Stahl-Institut VDEh (Edtr.): Proceedings METEC & 2nd ESTAT, 2015, published on CD

      • Merklein, M.; Maier, A.; Kinnstätter, D.; Jaremenko, C.; Affronti, E.:
        A new approach to the evaluation of forming limits in sheet metal forming.
        In: M. Merklein, J. Duflou, A. Leacock, F. Micari , H. Hagenah (Edtr.): Key Engineering Materials, 2015, pp. 333-338

      • Rosenschon, M.; Suttner, S.; Merklein, M.:
        Validation of kinematic hardening parameters from different stress states and levels of plastic strain with the use of the cyclic bending test.
        Key Eng. Mater. 639(2015), pp. 385-392

      • Merklein, M.; Affronti, E.; Tenner (geb. Steiner), J.:
        Numerical investigation of dry and lubricated sheet metal forming processes.
        In: Aldo Ofenheimer, Cecilia Poletti, Daniela Schalk-Kitting, Christof Sommitsch (Edtr.): Key Engineering Materials, 2015, pp. 1029-1035

      • Stellin, T.; Engel, U.; Merklein, M.:
        Experimental Study of a Microforging Process of Parallel Ribs from Metal Strip.
        In: Annoni, M.; Fassi, I.; Wiens, G.J.; Dimov, S. (Edtrs.): Proc. 4M/ICOMM2015 Conf., Research Publ., 2015, pp. 218-221

      • Merklein, M.; Graser, M.; Lechner, M.:
        Experimental investigation of heat-treated aluminum profiles.
        Key Engineering Materials 651-653(2015), pp. 59-64

      • Merklein, M.; Lechner, M.; Graser, M.:
        Influence of a short-term heat treatment on the formability and ageing characteristics of aluminum profiles.
        In: WLT e.V. (Edtr.): Lasers in Manufacturing Conference, 2015, published

      • Hildenbrand, P.; Schulte, R.; Merklein, M.:
        New process strategies to manufacture tailored blanks out of DP600 by orbital forming.
        Applied Mechanics and Materials 794(2015), pp. 144-151

      • Merklein, M.; Gröbel, D.; Löffler, M.; Schneider, T.; Hildenbrand, P.:
        Sheet-bulk metal forming – forming of functional components from sheet metals.
        In: Y. Qin, T.A. Dean, J. Lin, S.J. Yuan, F. Vollertsen (Edtr.): Proceedings of the 4th International Conference on New Forming Technology, MATEC Web of Conferences, 2015, pp. 01001 1-12

      • Merklein, M.; Degner, J.:
        Influence of Pre-Strain and Simulated Paint-Bake on Mechanical Properties of High Strength Aluminium Alloy AA7020.
        Applied Mechanics and Materials 805(2015), pp. 115-122

      • Merklein, M.; Tsoupis, I.; Gnibl, T.; Lechner, M.:
        Innovative manufacturing solutions for the efficient production of car bodies.
        In: Schmeing, K. (Edtr.): Forming in Car Body Engineering 2015, Vincentz Network GmbH & Co. KG, Hannover, 2015, pp. 67-86

      • Rosenschon, M.; Suttner, S.; Merklein, M.:
        Evaluation of kinematic hardening models for multiple stress reversals under continuous cyclic shearing and multi - step bending.
        In: (Edtr.): LS-DYNA Forum 2015, published online, 2015, published online

      • Merklein, M.; Kiener, C.; Zimmermann, A.:
        Numerical Investigations on the Influence of Process Parameters on the Forming of Gears in Forward Extrusion.
        Applied Mechanics and Materials 805(2015), pp. 154-161

      • Degner, J.; Suttner, S.; Tsoupis, I.; Lechner, M.; Merklein, M.:
        Manufacturing of Innovative Aluminum Components by Combining Shear Cutting Operation and Tailor Heat Treated Blank Technique.
        In: Landgrebe, D.; Drossel, W.-G.; Putz, M. (Edtrs.): 5th International Conference on Accuracy in Forming Technology, Verlag Wissenschaftliche Scripten, 2015, pp. 193-208

      • Kahrimanidis, A.; Lechner, M.; Degner, J.; Wortberg, D.; Merklein, M.:
        Process Design of Aluminum Tailor Heat Treated Blanks.
        Materials 8(2015)12, pp. 8524-8538

      2014

      • Plettke, R.; Vipavc, D.; Grüner, M.; Hagenah, H.; Merklein, M.:
        The influence of the annealing process in the fabrication of helical needles for the suture in deep wound cavities.
        Int. J. Computer Integrated Manufacturing 27(2014)10, pp. 960-967

      • Merklein, M.; Hofmann, M.; Lechner, M.; Kuppert, A.:
        A Review on Tailored Blanks - Production, Applications and Evaluation.
        J. Mater. Process. Tech. 214(2014)2, pp. 151-164

      • Tsoupis, I.; Hildering, S.; Hagenah, H.; Merklein, M.:
        Werkstoffschädigung in der Prozesskette Schneiden - Biegen.
        In: Liewald, M.; Tekkaya, A. E. (Edtrs.): 17. Workshop Simulation in der Umformtechnik, Institut für Umformtechnik, Universität Stuttgart, 2014, pp. 73-89

      • Plettke, R.; Schaub, A.; Gröschel, C.; Scheitler, C.; Vetter, M.; Hentschel, O.; Ranft, F.; Merklein, M.; Schmidt, M.; Drummer, D.:
        A new process chain for joining sheet metal to fibre composite sheets.
        Key Eng. Mater. 611-612 (2014), pp. 1468-1475

      • Plettke, R.; Vatter, P.:
        Comparison of new analytical an numerical approaches to model the three-roll-push-bending process.
        Int. J. Mechatronics and Manufacturing Systems 7(2014)4/5/6, pp. 279-295

      • Austen, M.; Noneder, J.; Merklein, M.:
        Use of FEM and DoE to reduce the forming force during cold extrusion of prismatic cell housings.
        Key Engineering Materials 611-612(2014), pp. 989-996

      • Lutz, S.; Weninger, J.; Helldörfer, B.; Merklein, M.:
        Numerical investigation of temperature and phase development of (deformation-) dilatometer specimens.
        In: Larkiola, J. (Edtr.): Material Forming - ESAFORM 2014, 2014, pp. 1539-1544

      • Merklein, M.; Andreas, K.; Gröbel, D.; Hildenbrand, P.; Müller, M.; Noneder, J.; Zimmermann, A.; Schneider, T.; Vierzigmann, U.:
        Potenziale und Grenzen der Simulation in der Fertigungstechnik.
        In: simufact engineering GmbH (Edtr.): Tagungsband 15. RoundTable - Simulating Manufacturing, ISBN: 978-3-9813814-3-6, 2014, pp. 1-38

      • Tsoupis, I.; Merklein, M.:
        A New Way for the Adaption of Inverse Identified GTN-Parameters to Bending Processes.
        In: Cathie Walton (Edtr.): 13th International LS-DYNA Users Conference 2014, Dearborn, Michigan USA, 2014, pp. 1-14

      • Grüner, M.; Merklein, M.:
        Determination of friction coefficients in deep drawing by modification of Siebel's formula for calculation of ideal drawing force.
        Prod. Eng. Res. Devel. 8(2014)5, pp. 577-584

      • Grüner, M.; Gnibl, T.; Merklein, M.:
        Blank hydroforming using granular material as medium - investigations on leakage.
        Procedia Engineering 81(2014), pp. 1035-1042

      • Tsoupis, I.; Hildering, S.; Merklein, M.:
        Bending of high-strength low-alloyed steel with respect to edge crack sensitivity caused by shearing operations.
        Procedia Engineering 81(2014), pp. 712-717

      • Merklein, M.; Kuppert, A.; Affronti, E.:
        An improvement of the time dependent method based on the coefficient of correlation for the determination of the forming limit curve.
        In: Marion Merklein, Jörg Franke, Hinnerk Hagenah (Edtrs.): Advanced Materials Research, 2014, pp. 215-222

      • Merklein, M.; Hildenbrand, P.; Schneider, T.:
        Application of Process adapted semi-finished Parts for the Production of Thin-walled Components via Sheet-Bulk Forming.
        In: Kawalla, R. (Edtr.): AutoMetForm / SFU 2014, ACATRAIN e.V., 2014, pp. 58-66

      • Stellin, T.; van Tijum, R.; Merklein, M.; Engel, U.:
        Study of Microforging of Parallel Ribs from Metal Strip.
        In: Larkiola, J. (Edtr.): Material Forming - ESAFORM 2014, 2014, pp. 565 - 572

      • Zimmermann, A.; Engel, U.:
        Influence of manufacturing process on the fatigue strength of gears.
        Adv. Mater. Res. 1018(2014), pp. 269-276

      • Lechner, M.; Zimmermann, A.; Graser, M.; Merklein, M.:
        Efficient Aluminum - Qualifizierung des Einsatzes höchstfester Aluminiumlegierungen im Karosseriebau.
        In: Franke, J.; Kreitlein, S.; Hoeft, A. (Edtrs.): Tagungsband zum 1. Green Factory Bavaria Kolloquium 2014 - Engergieeffiziente Produktion, FAPS, 2014, pp. 200-205

      • Andreas, K.; Kiener, C.; Engel, U.; Merklein, M.:
        Smart FE-Based Tool Design in Cold Forging.
        Advanced Materials Research 1018(2014), pp. 309-316

      • Merklein, M.; Affronti, E.; Kuppert, A.; Maier, A.; Lechner, M.:
        The correlation coefficient method: from the beginning to the development.
        In: Institut für Virtuelle Produktion, ETH Zürich (Edtrs.): Workshop Time-dependent Methods for the Evaluation of FLC, 2014, pp. 115-122

      • Suttner, S.; Rosenschon, M.; Merklein, M.:
        Methodik zur Parameteridentifikation des kinematischen Verfestigungsmodells nach Chaboche und Rousselier.
        In: W. Grellmann, H. Frenz (Edtr.): Tagungsband Werkstoffprüfung, DVM e.V., 2014, pp. 205-210

      • Lutz, S.; Weninger, J.; Helldörfer, B.; Merklein, M.:
        Untersuchung des Einflusses von Chargenschwankungen auf das Umwandlungsverhalten übereutektoider Stähle.
        In: W. Grellmann, H. Frenz (Edtr.): Tagungsband Werkstoffprüfung, DVM e.V., 2014, pp. 169-174

      • Lutz, S.; Weninger, J.; Helldörfer, B.; Merklein, M.:
        Evaluierung von Modellen zur Beschreibung der Umwandlungsplastizität durch experimentelle Untersuchungen an einem Wälzlagerstahl.
        In: Merklein, M. (Edtr.): 9. Erlanger Workshop Warmblechumformung, Meisenbach, 2014, pp. 77-88

      2013

      • Merklein, M.; Lechner, M.:
        Manufacturing flexibilisation of metal forming components by tailored blanks.
        In: D. Dimitrov; C. Schutte (Edtrs.): Proc. Conf. Competitive Manufacturing, 2013, pp. 165-170

      • Vatter, P.; Plettke, R.:
        Process model for the design of bent 3-dimensional free-form geometries for the three-roll-push-bending process.
        Procedia CIRP 7(2013), pp. 240-245

      • Vatter, P.; Hildering, S.; Tsoupis, I.; Merklein, M.:
        Development of a damage prediction system for bending and cutting of high strength steels.
        Key Eng. Mater. 554-557(2013), pp. 2479-2486

      • Tsoupis, I.; Hildering, S.; Merklein, M.:
        Prediction of Damage in Small Curvature Bending Processes of High Strength Steels Using Continuum Damage Mechanics Model in 3D Simulation.
        Prod. Eng. Res. Dev. 7(2013)2-3, pp. 239-249

      • Lechner, M.; Kuppert, A.; Merklein, M.:
        Comprehensive material characterization for an intermediate heat treatment.
        Key Eng. Mater. 549(2013), pp. 39-44

      • Lechner, M.; Kuppert, A.; Hagenah, H.; Merklein, M.:
        Optimization of the heat treatment layout and blank outline of THTB.
        Key Eng. Mater. 554-557(2013), pp. 2465-2471

      • Andreas, K.; Noneder, J.; Engel, U.; Merklein, M.:
        Application of cemented carbide based forming tools in cold forging.
        In: Bouzakis, K.-D.; Bobzin, K.; Denkena, B.; Merklein, M. (Edtrs.): Proc. 10th Int. Conf. THE "A" Coatings in Manufacturing Engineering, Shaker, 2013, pp. 159-169

      • Zimmermann, A.; Engel, U.; Merklein, M.:
        Investigation on the influence of manufacturing parameters on the fatigue strength of components.
        Key Eng. Mater. 554-557(2013), pp. 280-286

      • Hildering, S.; Tsoupis, I.; Merklein, M.:
        Process and Damage Behaviour of High Strength Steels in Shearing Operations.
        In: Buchmayr, B. (Edtr.): Tagungsband XXXII. Verformungskundliches Kolloquium, Lehrstuhl für Umformtechnik, Montanuniversität Leoben, 2013, pp. 89-94

      • Vatter, P.; Plettke, R.; Merklein, M.:
        New approaches to determine the bending contour of the 3-roll-push-bending process.
        In: Kaftanoglu, B. (Edtr.): 7th Int. Conf. on Design and Production of Machines and Dies/Molds, MATIM, 2013, pp. 71-76

      • Plettke, R.; Opel, S.:
        Investigations on orbital forming of sheet metals to manufacture tailored blanks with a defined sheet thickness variation.
        Adv. Mater. Res. 769(2013), pp. 157-164

      • Tsoupis, I.; Hildering, S.; Merklein, M.:
        Numerical investigation of small curvature bendability of high strength low alloyed steel in air and die bending processes.
        In: Hora, P. (Edtr.): Proc. IDDRG 2013, Institute of Virtual Manufacturing, ETH Zurich, 2013, pp. 183-188

      • Vatter, P.; Plettke, R.:
        Geometrical variations of tubes and their impact on freeform bending processes.
        Adv. Mater. Res. 769(2013), pp. 181-188

      • Merklein, M.; Hagenah, H.; Lechner, M.; Kuppert, A.:
        Simulationsgestützte Auslegung maßgeschneiderter wärmebehandelter Aluminiumhalbzeuge.
        In: Tekkaya A. E.; Liewald M. (Edtrs.): 16. Workshop Simulation in der Umformtechnik, Institut für Umformtechnik und Leichtbau, Technische Universität Dortmund, 2013, pp. 90-101

      • Grüner, M.; Merklein, M.:
        Basic experimental and numerical investigations on chip pressing.
        Key Eng. Mater. 554-557(2013), pp. 630-637

      • Stellin, T.; Merklein, M.; Engel, U.:
        Investigation on a Microextrusion Process of Parallel Protrusions from Metal Strip.
        In: M. Jun, S. Park (Edtr.): Proc. 8th Int. Conf. Micro Manufacturing, 2013, pp. 169-174

      • Koch, J.; Merklein, M.:
        Cold forging of closely-tolerated functional components out of blanks – possibilities of the new process class sheet-bulk metal forming.
        In: Ishikawa, T. (Edtr.): Proc. 6th JSTP Int. Seminar Precision Forging, 2013, pp. 109-112

      • Zimmermann, A.; Engel, U.; Merklein, M.; Neher, R.:
        Production of gears by cold forging.
        In: VDI Wissensforum (Edtr.): Int. Conf. on Gears, VDI-Berichte 2199.2, VDI, 2013, pp. 1005-1016

      • Völkl, R.; Werner, N.; Neher, R.; Engel, U.; Zimmermann, A.:
        Beanspruchungsangepasste Bauteileigenschaften durch effiziente, optimierte Kaltumformprozesse.
        In: Liewald, M. (Edtr.): Neuere Entwicklungen in der Massivumformung, MAT INFO Werkstoff-Informationsgesellschaft, 2013, pp. 165-180

      • Schaub, A.; Lechner, M.; Merklein, M.:
        Druckversuch bei erhöhten Temperaturen.
        In: H.J. Christ (Edtr.): Tagungsband Werkstoffprüfung DGM, Stahleisen, 2013, pp. 85-90

      • Lutz, S.; Weninger, J.; Helldörfer, B.; Merklein, M.:
        Numerische Untersuchungen der Temperatur- und Phasenentwicklung in (Umform-) Dilatometerproben.
        In: Hildebrand, J.; Loose, T.; Sakkietibutra, J.; Brand, M. (Edtrs.): Simulationsforum 2013 - Schweißen und Wärmebehandlung, docupoint GmbH, Barleben, 2013, pp. 35 - 42

      2012

      • Merklein, M.; Tsoupis, I.; Hildering, S.:
        Fertigung innovativer Bauteile aus hochfesten Stählen: Biegen und Schneiden – Risse vermeiden.
        Zukunftstechnologien in Bayern - Neue Materialien, Verfahren und Produkte (2012), pp. 28-31

      • Hetzner, H.; Koch, J.; Tremmel, S.; Wartack, S.; Merklein, M.:
        Improved Sheet Bulk Metal Forming Processes by Local Adjustment of Tribological Properties.
        J. Manufacturing Science and Engineering 133(2012)6, pp. 61011_1-11

      • Buffa, Gianluca; Fratini, Livan; Gnibl, T.; Wieland, M.; Merklein, M.:
        Process Mechanics in Friction Stir Welding of Magnesium Alloys: Experimental and Numerical Analysis.
        Key Eng. Mater. 504-506(2012), pp. 735-740

      • Tsoupis, I.; Hildering, S.; Merklein, M.:
        Methodology for the analysis of the process behaviour of advanced high strength steels in bending and shearing operations.
        Key Eng. Mater. 504-506(2012), pp. 895-900

      • Merklein, M.; Plettke, R.; Schneider, T.; Opel, S.; Vipavc, D.:
        Manufacturing of sheet metal components with variants using process adapted semi-finished products .
        Key Eng. Mater. 504-506(2012), pp. 1023-1028

      • Plettke, R.; Vatter, P.; Vipavc, D.:
        Basics of process design for 3d freeform-bending.
        Steel Res. Int. (2012), pp. 307-310

      • Vierzigmann, U.; Koch, J.; Merklein, M.; Engel, U.:
        Material Flow in Sheet-Bulk Metal Forming.
        Key Eng. Mater. 504-506 (2012), pp. 1035-1040

      • Merklein, M.; Plettke, R.; Opel, S.:
        Orbital forming of tailored blanks from sheet metal.
        Annals of the CIRP 61(2012)1, pp. 263-266

      • Merklein, M.; Opel, S.; Schneider, T.; Koch, J.:
        Überblick der Blechmassivumformung.
        Umformtechnik 1(2012)3, pp. 42-43

      • Buffa, Gianluca; Fratini, Livan; Gnibl, T.; Wieland, M.; Merklein, M.:
        On The Friction Stir Welding of Titanium Alloys: Experimental Measurements and FEM Model Fine Tuning.
        Steel Res. Int. (2012), pp. 591 - 594

      • Merklein, M.; Stellin, T.; Engel, U.:
        Experimental Study of a Full Forward Extrusion Process from Metal Strip.
        Key Eng. Mater. 504-506(2012), pp. 587-592

      • Merklein, M.; Lechner, M.:
        Flexibilisierung der Fertigung umformtechnisch erzeugter Bauteile durch prozessangepasste Halbzeuge.
        In: P. Groche (Edtr.): 11. Umformtechnisches Kolloquium Darmstadt, Meisenbach, 2012, pp. 87-99

      • Merklein, M.; Engel, U.; Noneder, J.; Zimmermann, A.:
        FE-basierte Prozess- und Werkzeugauslegung zur Herstellung von Hochleistungsbauteilen mit dem Ziel einer gezielten Einstellung von Bauteileigenschaften.
        In: Schafstall, H.; Wohlmuth, M.; simufact engineering GmbH (Edtrs.): Tagungsband 13. RoundTable - Simulation in der Umformtechnik, Meisenbach Verlag , 2012, pp. 291-302

      • Hezler, C.; Tsoupis, I.; Merklein, M.; Kasparbauer, M.:
        Experimental determination of stress limit curves - comparison of applied technological tests and stamped components by fractographic examinations.
        In: Hora, P. (Edtr.): Proc. 5th Forming Technology Forum, Institute of Virtual Manufacturing, ETH Zurich, 2012, pp. 87-92

      • Merklein, M.; Vatter, P.; Plettke, R.; Grüner, M.:
        Einfluss der Fließkurve auf den Rohrbiegeradius.
        Werkstattstechnik online 10(2012), pp. 689-695

      • Merklein, M.; Böhm, W.; Lechner, M.:
        Tailoring material properties of aluminum by local laser heat treatment.
        Physics Procedia 39(2012), pp. 232–239

      • Merklein, M.; Lechner, M.; Kuppert, A.:
        Enhancement of formability of aluminum alloys in multi-stage forming operations by a local intermediate heat treatment.
        Prod. Eng. Res. Dev. 6(2012)6, pp. 541-549

      • Noneder, J.; Merklein, M.:
        Manufacturing of Complex High Strength Components out of High Nitrogen Steels at an Industrial Level.
        In: Yuan, S.J.; Vollertsen, F.; Wang, Z.R.; Dean, T.A. (Edtrs.): Proceedings of the 3rd International Conference on New Forming Technology 2012, 2012, pp. 110-115

      • Plettke, R.; Vipavc, D.; Grüner, M.; Hagenah, H.; Merklein, M.:
        Prototype Manufacturing of Helical Needles for Suture in Deep Wound Cavities.
        In: E. Ceretti, A. Fiorentino, L. Giorleo, C. Giardini (Edtr.): Proc. 1st Int.Conf. Design and Processes for medical devices PROMED, NEOS EDIZIONI srl, 2012, pp. 191-194

      • Stellin, T.; Merklein, M.; Engel, U.:
        Experimental and Numerical Investigation on a Full Forward Extrusion Process from Metal Strip.
        In: Humbert Noll, Nadja Adamovic and Stefan Dimov (Edtr.): Proc. 9th Int. Conf. Multi-Material Micro Manufacture, Research Publ., 2012, pp. 163 - 166

      • Noneder, J.; Merklein, M.:
        Manufacturing of complex high strength components out of high nitrogen steels at industrial level.
        Transactions of Nonferrous Metals Society of China 2012(2012)22, pp. 512-513

      • Noneder, J.; Merklein, M.; Engel, U.; Frank, M.; Frank, J.; Ritzenhoff, R.; Egerer, E.:
        Hochleistungsbauteile durch Kaltmassivumformung hochfester, druckaufgestickter Stähle.
        UTF-Science (2012)III, published

      2011

      • Merklein, M.; Koch, J.; Opel, S.; Schneider, T.:
        Fundamental investigations on the material flow at combined sheet and bulk metal forming processes.
        CIRP Annals - Manufacturing Technology 60(2011)1, pp. 283-286

      • Merklein, M.; Stellin, T.; Engel, U.:
        Simulation of a Full Forward Extrusion Process from Metal Strip.
        AIP Conf. Proc. 1353(2011), pp. 493-498

      • Kaupper, M.; Tsoupis, I.; Merklein, M.; Weidinger, P.:
        Characterization of damage and fracture of high strength steels within air bending.
        In: Akkök, M.; Budak, E.; Firat, M.; Kaftanoglu, B. (Edtrs.): Proc. 6th Int. Conf. and Exhibition on Design and Production of Machines and Dies/Molds, MATIM, 2011, pp. 71-76

      • Weiss (geb. Tofall), M.; Merklein, M.; Plettke, R.:
        Application of the Finite element methods on the staking process of staking fasteners .
        Key Engineering Materials 473(2011), pp. 273-280

      • Weiss (geb. Tofall), M.; Merklein, M.; Plettke, R.:
        Numerical simulation of the staking process of clinching fasteners.
        In: Wieland, H. (Edtr.): Proceedings SCT2011, Verlag Stahleisen GmbH, 2011, pp. 646-655

      • Grüner, M.; Merklein, M.:
        Consideration of elastic tool deformation in numerical simulation of hydrofroming with granular material used as a medium.
        Key Engineering Materials 473(2011), pp. 707-714

      • Lämsä, J.; Mäntyjärvi, K.; Järvenpää, A.; Grüner, M.; Merklein, M.; Karjalainen, J.:
        Methods for Determination of Residual Stress of a Formed Plate using Laser Ablation, Wire EDM and Milling.
        Key Engineering Materials 473(2011), pp. 368-375

      • Merklein, M.; Ndzomssi Zébazé, F.; Engel, U.:
        Investigation of the Influence of Tool Geometry on Effective Strain Distribution in Full Forward Extrusion.
        AIP Conf. Proc. 1353(2011), pp. 419-424

      • Merklein, M.; Tekkaya, A.E.; Brosius, A.; Opel, S.; Koch, J.:
        Overview on sheet-bulk metal forming processes.
        In: G. Hirt, A.E. Tekkaya (Edtr.): Proceedings ICTP 2011, 2011, pp. 1109-1114

      • Kroiß, T.:
        Process Modeling in Cold Forging Considering Process Machine Interactions and Scatter of Influencing Factors.
        In: Hora, P. (Edtr.): Proc. 4th Form. Technol. Forum, Institute of Virtual Manufacturing, ETH Zurich, ISBN: 978-3-909386-48-2, 2011, pp. 129-134

      • Schaper, M.; Lizunkova, Y.; Vucetic, M.; Hetzner, H.; Schneider, T.; Plugge, B.; Koch, J.; Opel, S.:
        Sheet-bulk metal forming a new process for the production of sheet metal parts with functional components.
        Metallurgical and Mining Industry 3(2011)7, pp. 53-58

      • Grüner, M.; Merklein, M.:
        Influences on the Molding in Hydroforming Using Granular Material as a Medium.
        In: Chung, K.; Han, H. N.; Huh, H. Barlat, F.; Lee, M.-G. (Edtrs.): AIP Conference Proceedings Volume 1383 - The 8th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes (NUMISHEET 2011), American Institute of Physics, 2011, pp. 645-652

      • Plettke, R.; Vipavc, D.; Vatter, P.:
        Influence factors of three-roll-push-bending.
        In: Tekkaya, A. E. (Edtr.): Proc. 1st Int. Tube and Profile Bending Conf., 2011, pp. 131-135

      • Merklein, M.; Biasutti, M.:
        Forward and Reverse Simple Shear Test Experiments for Material Modeling in Forming Simulations.
        In: Tekkaya, E.A. (Edtr.): Proc. of the 10th International Conference on Technology of Plasticity (ICTP), Springer, 2011, accepted

      • Biermann, D.; Merklein, M.; Engel, U.; Tillmann, W. ; Surmann, T. ; Hense, R.; Herper, J. ; Koch, J.; Krebs, E. ; Vierzigmann, U.:
        Umformwerkzeuge in der Blechmassivumformung.
        In: Merklein, M.; Bach, Fr.-W.; Tekkaya, A. E. (Edtrs.): 1. Workshop Blechmassivumformung, Meisenbach, 2011, pp. 119-138

      • Merklein, M.; Lechner, M.; Kuppert, A.:
        Verfahren und Werkzeug zur Wärmebehandlung von Aluminiumblechwerkstoff sowie nach einem derartigen Verfahren wärmebehandelter Aluminiumblechwerkstoff
        Deutsches Patent EP 12 178 269.2, Priorität 05.08.2011, Anmeldetag 27.07.2012, 2011

      2010

      • Plettke, R.; Vatter, P.; Vipavc, D.; Cojutti, M.; Hagenah, H.:
        Investigation on the Process Parameters and Process Window of "Three-Roll-Push-Bending".
        In: Hinduja, S.; Li, L. (Edtrs.): Proc. 36th Matador Conf., Springer, 2010, pp. 25-28

      • Hagenah, H.; Vipavc, D.; Vatter, P.; Cojutti, M.; Plettke, R.:
        Creation of the Data Base for the Process Design of the Three-Roll-Push Bending Process.
        In: Teti, R. (Edtr.): 7th CIRP Int. Conf. Intelligent Computation in Manufacturing Engineering, 2010, pp. 259-264

      • Plettke, R.:
        Application of a genetic algorithm for the assessment of the capabilities of actuator systems for laser micro adjustment.
        International Journal of Material Forming 3(2010)0, pp. 17-20

      • Merklein, M.; Koch, J.; Schneider, T.; Opel, S.; Vierzigmann, U.:
        Manufacturing of Complex Functional Components with Variants by Using a new Metal Forming Process – Sheet-Bulk Metal Forming.
        International Journal of Material Forming 3 (2010), pp. 347-350

      • Grüner, M.; Merklein, M.:
        Numerical Simulation of Hydroforming at Elevated Temperatures with Granular Material Used as Medium Compared to the Real Part Geometry.
        Int J Mater Form 3(2010)1, pp. 279-282

      • Eichenhüller, B.; Engel, U.; Geiger, M.:
        Microforming and investigation of parameter interactions.
        Production Engineering 4(2010)2-3, pp. 135-140

      • Grüner, M.; Merklein, M.:
        Comparison of numerical simulation and measurement of shear test and uniaxial compression test to verify material model for granular material used as medium for hydroforming.
        In: Warsaw University of Technology, Faculty of Production Engineering 2010 (Edtr.): Proc. 5th International Conference on Advances in Production Engineering, Publishing and Printing House of the Institute for Suitainable Technologies, 2010, pp. 418-426

      • Kroiß, T.; Engel, U.; Merklein, M.:
        Process Modeling In Cold Forging Considering The Process-Tool-Machine Interactions.
        In: Barlat, F.; Moon, Y. H.; Lee, M.-G. (Edtrs.): Proc. of the 10th Int. Conf. on Numerical Methods in Industrial Forming Processes; AIP Conference Proceedings 1252, American Institute of Physics, 2010, pp. 312-319

      • Kroiß, T.; Engel, U.; Merklein, M.:
        Modeling of the Behavior of a Cold Forging Process Considering the Deflection of Tooling System and Press.
        In: (Edtr.): Proc. 2nd Int. Conf. on Process Machine Interactions (PMI), ISBN: 978-0-9866331-0-2, 2010, published on CD

      • Hagenah, H.; Vipavc, D.; Plettke, R.; Merklein, M.:
        Numerical Model of Tube Freeform Bending by Three-Roll-Push-Bending.
        In: Associacao Portuguesa de Mecanica Teória, Aplicada e Computacional (Edtrs.): 2nd International Conference on Engineering Optimization, 2010, published on CD

      • Kroiß, T.; Engel, U.; Merklein, M.:
        Simulation-Based Determination of Deflection Characteristic of Tooling System and its Modeling in FE Simulation of Cold Forging Process.
        In: K. Mori et al. (Edtr.): steel research international (special edition Metal Forming 2010), Wiley-VCH Verlag GmbH & Co. KGaA, 2010, pp. 318-321

      • Groenbaek, J.; Engel, U.; Hinsel, C.; Kroiß, T.; Meidert, M.; Neher, R.; Räuchle, F.; Schrader, T.:
        Tooling Solutions for Challenges in Cold Forging.
        In: Groche, P. (Edtr.): 43rd ICFG Plenary Meeting 2010, Institut für Fertigungsforschung e. V., 2010, pp. 112-130

      • Li, H.; Dong, X.; Huang, S.; Diehl, A.; Hagenah, H.:
        Material intrinsic length in plastic strain gradient theory and microbending process of metal foils.
        In: (Edtr.): 6th International conference on MEMS NANO, and Smart Systems (ICMENS 2010), 2010, pp. 218-211

      • Plettke, R.:
        Mehrkriterielle Optimierung komplexer Aktorsysteme für das Laserstrahljustieren.
        : Meisenbach Verlag Bamberg, 2010, 1. Ed.

      2009

      • Grüner, M.; Merklein, M.:
        Mechanical Behaviour of Ceramic Beads Used as Medium for Hydroforming at Elevated Temperatures.
        Key Engineering Materials (2009)410-411, pp. 61-68

      • Eichenhüller, B.; Engel, U.:
        Investigation of effects and parameter interactions in metal microforming processes.
        In: SAILE, V.; EHMANN, K.; DIMOV, S. (Edtrs.): 4M/ICOMM 2009, Proc. Global Conf on Micro Manufacture (incorp. 5th Int. Conf. on Multi-Material Micro Manufacture 4M and 4th Int. Conf. on Micro Manufacturing ICOMM), The Charlesworth Group, 2009, pp. 245-248

      • Kroiß, T.; Engel, U.:
        FE-Based Modeling of Interactions Between Cold Forging Process, Tooling System and Force Controlled Press.
        In: Gantar, G. (Edtr.): ICIT&MPT 2009, Proc. of the 7th Int. Conf. on Industrial Tools and Material Processing Technologies, Oktober 4-7, Ljubljana, Slovenia, TECOS, 2009, pp. 293-300

      • Merklein, M.; Hagenah, H.; Cojutti, M.:
        Investigations on Three-Roll Bending of Plain Tubular Components.
        Key Eng. Mater. 410-411(2009), pp. 325-334

      • Grüner, M.; Merklein, M.:
        Mechanical Behaviour of Ceramic Beads Used as Medium for Hydroforming at Elevated Temperatures.
        In: Shirvani, B.; Clarke, R.; Duflou, J.; Merklein, M.; Micari, F.; Griffiths, J. (Edtrs.): Proc. 13th Int. Conf. on Sheet Metal (SheMet 2009), Trans Tech Publications, 2009, pp. 61-68

      2008

      • Hagenah, H.; Plettke, R.; Geiger, M.:
        Algorithms for Planning and Control of Laser Forming.
        In: Vollertsen, F. (Edtr.): Proceedings of the IWOTE 08, BIAS Verlag, 2008, pp. 191-203

      • Plettke, R.; Hagenah, H.; Geiger, M.:
        Developing a computer aided design system for actuator design for laser micro adjustment.
        In: (Edtr.): Proceedings of the 18th CIRP International Design Seminar (March 2008), 2008, pp. 1-5

      • Hagenah, H.; Plettke, R.; Klämpfl, F.:
        Fast, problem specific approaches for the evaluation of laser beam propagation in process planning.
        In: Teti, R. (Edtr.): Proceedings of the 6th CIRP International Conference on Intelligent Computation in Manufacturing Engineering, Edizioni Zino, 2008, pp. 413-418

      • Merklein, M.; Geiger, M.; Hagenah, H.; Cojutti, M.:
        3-Rollen-Schubbiegen zur flexiblen Herstellung freiformgebogener Rohrleitungen.
        Zukunftstechnologien in Bayern (2008), pp. 24-26

      • Hußnätter, W.; Grüner, M.; Merklein, M.:
        Material Characterization of Sheet Metal at Elevated Temperatures Using Optical Technologies.
        In: AMA Service GmbH (Edtr.): OPTO 2008 - 8. Internationaler Kongress für Optische Technologien, 2008, pp. 87-92

      • Eichenhüller, B.; Engel, U.:
        Microforming of titanium - forming behaviour at elevated temperature.
        Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 222(2008)1, pp. 77-82

      • Engel, U.; Geißdörfer, S.; Weidel, S.; Eichenhüller, B.:
        Ursache und Wechselwirkung in der Mikroumformtechnik.
        Mikroproduktion (2008)2, pp. 39-43

      • Engel, U.; Geißdörfer, S.; Diehl, A.; Eichenhüller, B.; Weidel, S.:
        Mikroumformen - Ähnlich wie Makro?.
        Umformtechnik im Spannungsfeld zwischen Plastomechanik und Werkstofftechnik, Bad Harzburg: GRIPS media GmbH, 2008

      • Eichenhüller, B.; Engel, U.; Geißdörfer, S.:
        Process parameter interaction in microforming.
        In: BOISSE, P. (Edtr.): Proceedings of the 11th ESAFORM2008 conference on material forming, 2008, published on CD

      • Eichenhüller, B.; Engel, U.:
        Investigation of Parameter Interactions in Microforming.
        In: OZDOGANLAR, B. (Edtr.): Proc. of the 3rd Int. Conf. on Micromanufacturing , 2008, pp. 207-210

      • Kroiß, T.; Völkl, R.; Engel, U.; Geiger, M.:
        Modeling of Process-Tool-Machine Interactions in Cold Forging.
        In: Denkena, B. (Edtr.): Proc. 1st Int. Conf. on Process Machine Interactions (PMI), PZH, 2008, pp. 175-182

      • Kroiß, T.; Engel, U.; Völkl, R.; Geiger, M.:
        Process-machine interactions in cold forging – calculation of press / tooling stiffness and its integration into FE process simulation.
        In: Yang, D.Y. (Edtr.): Proc. of the 9th International Conference on Technology of Plasticity (ICTP), 2008, pp. 1735-40

      2007

      • Plettke, R.; Hagenah, H.; Geiger, M.:
        Rechnergestützter Entwurf von Aktorsystemen für die lasergebundene Mikrojustage.
        In: Schulze, T.; Preim, B.; Schumann, H. (Edtrs.): Simulation und Visualisierung 2007. Proceedings of the 18th Conference on Simulation and Visualization (SimVis), SCS Publishing House e.V., 2007, pp. 43-54

      • Plettke, R.; Hagenah, H.; Geiger, M.:
        Computer assisted design of actuator systems for laser micro adjustment.
        Key Eng. Mater. 344(2007), pp. 807-814

      • Plettke, R.; Hagenah, H.; Geiger, M.:
        Computer assisted design of complex actuator systems for laser micro adjustment.
        In: Geiger, M.; Otto, A.; Schmidt, M. (Edtrs.): Proceedings of the LANE 2007, Meisenbach, 2007, pp. 533-544

      • Plettke, R.; Hagenah, H.; Geiger, M.:
        Application of genetic algorithms for the optimization of actuator systems for laser micro adjustment.
        In: Kuzman, K. (Edtr.): Proceedings of the 6th International Conference on Industrial Tools and Material Processing Technologies 2007 (ICIT&MPT 2007), 2007, pp. 297-302

      • Eichenhüller, B.; Egerer, E.; Engel, U.:
        Microforming at elevated temperature - forming and material behaviour.
        The International Journal of Advanced Manufacturing Technology 33(2007)1-2, pp. 119-124

      • Kroiß, T.; Völkl, R.; Engel, U.:
        Berechnung der Wechselwirkungen zwischen Umformmaschine und -prozess auf Basis der Integration eines Pressenmodells in die FE-Fließpresssimulation.
        In: DWM (Edtr.): Proc.12th Dresdner Werkzeugmaschinen-Fachseminar, 2007, published

      2006

      • Hagenah, H.; Plettke, R.; Geiger, M.:
        Planning and Control of Laser Forming Applications.
        In: Butala, P.; Hlebanja, G (Edtrs.): Proceedings of the 39th CIRP International Seminar on Manufacturing Systems, Dept. of Control and Manufacturing Systems, Faculty of Mechanical Engineering, Univ. of Ljubljana, 2006, pp. 359 - 367

      • Eichenhüller, B.; Engel, U.:
        Microforming of titanium - forming behaviour at elevated temperature.
        In: MENZ, W.; FILLON, B.; DIMOV, S. (Edtrs.): 2nd International Conference on Multi-Material Micro Manufacture, Elsevier, 2006, pp. 339-342

      • Geißdörfer, S.; Diehl, A.; Eichenhüller, B.; Engel, U.:
        Microforming - Application and 3D Simulation.
        In: TETI, R. (Edtr.): Proceedings of the 5th CIRP Seminar on Intelligent Computation in Manufacturing Engineering, University of Naples, 2006, pp. 521 - 526

      2005

      • Geiger, M.; Engel, U.; Eckstein, R.; Eichenhüller, B.; Räbiger, K.; Tiesler, N.:
        Umformtechnische Herstellung metallischer Kleinstteile.
        Sonderforschungsbereich 356 Produktionssysteme in der Elektronik, Bamberg: Meisenbach, 2005

      • Eichenhüller, B.; Egerer, E.; Engel, U.:
        Einfluss erhöhter Prozesstemperatur auf die Formänderungsgrenzen beim Mikrofließpressen.
        Erweiterung der Formgebungsgrenzen bei Umformprozessen. Abschlussbericht DFG Schwerpunktprogramm 1074, Aachen: Verlagshaus Mainz, 2005

      • Eichenhüller, B.; Egerer, E.; Engel, U.:
        Microforming at elevated temperature - forming and material behaviour.
        In: MENZ, W.; DIMOV, S. (Edtrs.): 1st International Conference on Multi-Material Micro Manufacture, Elsevier, 2005, pp. 151-154

      Last Update: 07.03.2014