Lehrstuhl für Fertigungstechnologie, Universität Erlangen-Nürnberg



Manufacturing Processes



Gruppe FP R01fr




Participants

Head of Research Group

Members


Projects


Publications

    2017

    • Leicht, U.; Michalski, M.; Merklein, M.:
      Ultraschallunterstütztes Umformen und Verstemmen - Aktuelle Ergebnisse aus dem Verbundprojekt "UltraCaulk".
      wt Werkstattstechnik online 107(2017)H. 1/2, pp. 52-58

    • Michalski, M.; Piott, F.; Merklein, M.:
      Compression testing of martensitic stainless steel with superimposed ultrasonic vibration.
      Procedia Engineering 207(2017), pp. 1970-1975

    • Michalski, M.; Leicht, U.; Heath, A.; Merklein, M.:
      Dynamic correction of oscillatory forces during ultrasonic-assisted metal forming.
      Production Engineering 11(2017)4-5, pp. 455-465

    • Hörhold, R.; Müller, M.; Merklein, M.; Meschut, G.:
      Specimen´s Geometry Related Influences on Load-Bearing Capacity of Joining Aluminium and UHSS by Innovative Shear-Clinching.
      Journal of Materials Science Research 6(2017)4, published online

    • Dubjella, P.; Merklein, M.:
      Influence of Warm Bending on the Surface Topography of Titanium Alloy Ti-6Al-4V.
      In: (Edtr.): Procedia Engineering, 2017, pp. 23-30

    • Butzhammer, L.; Dubjella, P.; Huber, F.; Schaub, A.; Aumüller, M.; Baum, A.; Petrunenko, O.; Merklein, M.; Schmidt, M.:
      Experimental investigation of a process chain combining sheet metal bending and laser beam melting of Ti-6Al-4V.
      In: WLT e.V. (Edtr.): Lasers in Manufacturing Conference 2017, 2017, accepted

    • Hentschel, O.; Scheitler, C.; Fedorov, A.; Junker, D.; Gorunow, A.; Haimerl, A.; Merklein, M.; Schmidt, M.:
      Experimental investigations of processing the high carbon cold-work tool steel 1.2358 by LMD for the additive Manufacturing of cold forging tools.
      Journal of Laser Applications 29(2017)2, pp. 022307

    • Junker, D.; Hentschel, O.; Schramme, R.; Schmidt, M.; Merklein, M.:
      Perfomance of Hot Forging Tools built by Laser Metal Deposition of Hot Work Tool Steel X37CrMoV5-1.
      In: Laser in Manufacturing Conference 2017 (Edtr.): 2017, published

    2016

    • Schaub, A.; Degner, J.; Ahuja, B.; Schmidt, M.; Merklein, M.:
      Numerical Investigation for Superplastic Forming Tool Development Within the Combined Process Chain of Forming and Additive Manufacturing.
      In: Dimitrov, D; Oosthuizen, T. (Edtrs.): Int. Conf. Competitive Manufacturing, 2016, pp. 173-179

    • Hörhold, R.; Müller, M.; Merklein, M.; Meschut, G.:
      Mechanical properties of an innovative shear-clinching technology for ultra-high-strength steel and aluminium in lightweight car body structures.
      Welding in the World 60(2016)3, pp. 613-620

    • Hildering, S.; Michalski, M.; Engel, U.; Merklein, M.:
      Tool Load Sensitivity against Multidimensional Process Influences in Microblanking of Thin Metal Foils with Silicon Punches.
      J. Manuf. Sci. Eng. 138(2016)9, pp. 091004 1-9

    • Michalski, M.; Merklein, M.:
      Ultrasonic-Assisted Upsetting of Steel with 15 kHz Oscillation Frequency.
      Key Eng. Mater. 716(2016), pp. 544-551

    • Frey, P.; Hildering, S.; Tsoupis, I.; Stellin, T.; Merklein, M.:
      Simulationsbasierte Untersuchung eines neuartigen Fügekonzepts für Rotoren elektrischer Maschinen.
      In: simufact engineering GmbH (Edtr.): Tagungsband 17. RoundTable - Simulating Manufacturing, 2016, pp. 70-79

    • Tsoupis, I.; Merklein, M.:
      Edge crack sensitivity of lightweight materials under different load conditions.
      IOP Conference Series: Materials Science and Engineering 159(2016)1, pp. 1-8

    • Nguyen, H.; Böhm, W.; Tsoupis, I.; Göken, M.; Höppel, H. W.; Schmidt, C.; Hausöl, T.; Ruppert, M.; Merklein, M.:
      Tailored heat treated accumulative roll bonded aluminum blanks: failure under bending stresses.
      Prod. Eng. Res. Dev. 10(2016)4-5, pp. 399-407

    • Merklein, M.; Gnibl, T.; Tsoupis, I.; Friedrichsen, M.; Beck, J.:
      Influence of Cutting Processes on Edge Cracking Sensitivity of Bright Finishing Alloys.
      Key Eng. Mater. 716(2016), pp. 443-450

    • Hörhold, R.; Müller, M.; Merklein, M.; Meschut, G.:
      Fundamental Studies on a Novel Die Concept for Round-Point Shear-Clinching.
      AIP Conference Proceedings 1769(2016)100003, pp. 1-6

    • Müller, M.; Hörhold, R.; Meschut, G.; Merklein, M.:
      Numerische Untersuchung des Werkstoffflusses beim Fügen artungleicher Werkstoffe mittels Schneidclinchen.
      In: Brosius, A. (Edtr.): Tagungsband SFU 2016, 2016, pp. 158-165

    • Frey, P.; Höhler, C.; Merklein, M.:
      Effect of Residual Stress on the Distortion of Microembossed Metal Inserts for Assembly Injection Moulding.
      In: Tosello, G.; Nørgaard Hansen, H.; Ehmann, K.; Dimov, S. (Edtrs.): 4M/IWMF2016 Conference: Proceedings of 11th International Conference on Multi-Material Micro Manufacture, 2016, pp. 691

    • Hofmann, B.; Masuch, M.; Frey, P.; Franke, J.; Merklein, M.:
      In-Line strategies and methods to reduce balancing efforts within rotor production for electric drives.
      In: Franke, J. (Edtr.): 6th International Electric Drives Production Conference (EDPC), 2016, published

    • 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

    • 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

    • Merklein, M.; Plettke, R.; Junker, D.; Schaub, A.; Ahuja, B.:
      Mechanical Testing of Additive Manufactured Metal Parts.
      Key Eng. Mater. 651-653 (2015), pp. 713-718

    • Frey, P.; Heinle, M.; Leisen, C.; Drummer, D.; Merklein, M.:
      Embossing of Metal Inserts for Subsequent Assembly Injection Moulding of Media Tight Electronic Systems.
      KEM (Key Engineering Materials) 639(2015), pp. 99-106

    • Michalski, M.; Leicht, U.; Engler, S.; Merklein, M.:
      Tool System for Ultrasonic-Assisted Forming and Material Characterisation with 15 kHz Oscillation Frequency.
      Appl. Mech. Mater. 794(2015), pp. 427-434

    • Bhrigu, A.; Schaub, A.; Karg, M.; Schmidt, R.; Merklein, M.; Schmidt, M.:
      High Power Laser Beam Melting of Ti6Al4V on Formed Sheet Metal to achieve Hybrid structures.
      In: Helvajian, H., Piqué, A., Wegener, M.; Gu, B. (Edtrs.): Proc. of SPIE , 2015, pp. 1-10

    • Hildering, S.; Michalski, M.; Engel, U.; Merklein, M.:
      Tool Load Sensitivity against Multidimensional Process Influences in Microblanking of Thin Metal Foils with Silicon Punches.
      In: ASME (Edtr.): Proceedings of the ASME 2015 International Manufacturing Science and Engineering Conference, 2015, pp. 1-10

    • Müller, M.; Vierzigmann, U.; Hörhold, R.; Meschut, G.; Merklein, M.:
      Development of a testing method for the identification of friction coefficients for numerical modeling of the shear-clinching process.
      Key Eng. Mater. 639(2015), pp. 469-476

    • Müller, M.; Hörhold, R.; Meschut, G.; Merklein, M.:
      FE-based study of the cutting operation within joining by forming of dissimilar materials using shear-clinching technology.
      Adv. Mater. Res. 794(2015), pp. 304-311

    • Junker, D.; Hentschel, O.; Schmidt, M.; Merklein, M.:
      Qualification of Laser Based Additive Production for Manufacturing of Forging Tools.
      In: EDP Sciences (Edtr.): Journal of Manufacturing Review, 2015, published

    • Junker, D.; Hentschel, O.; Schmidt, M.; Merklein, M.:
      Tailor-Made Forging Tools by Laser Metal Deposition.
      In: (Edtr.): Key Engineering Materials(2015), 2015, pp. 707 - 712

    • Karg, M.; Ahuja, B.; Schaub, A.; Schmidt, J.; Sachs, M.; Mahr, A.; Wiesenmayer, S.; Wigner, L.; Wirth, K.-E.; Peukert, W.; Merklein, M.; Schmidt, M.:
      Effect of process conditions on mechanical behavior of aluminium wrought alloy EN AW-2618 additively manufactured by Laser Beam Melting in powder bed.
      In: WLT e. V. (Edtr.): Lasers in Manufacturing Conference, 2015, published

    • Merklein, M.; Junker, D.; Schaub, A.; Kretschmer, A.; Lechner, M.:
      Development of a New Method for Producing Plane Expanded Metal by Laser Cutting and Forming of Metal Plates under Uniaxial Tension.
      Key Engineering Materials 639(2015), pp. 131-136

    • Michalski, M.; Merklein, M.:
      Ultraschallunterstützte Umformung von Metallen - Entwicklung eines Prüfstands zur Werkstoffcharakterisierung mit 15 kHz Schwingungsüberlagerung.
      wt Werkstattstechnik online 105(2015)H. 10, pp. 715-721

    • 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

    • Frey, P.; Heinle, M.; Drummer, D.; Merklein, M.:
      Influence of Metal Inserts with Microformed Edges on Subsequent Injection Assembly Moulding for Media Tight Electronic Systems.
      In: Qin, Y.; Dean; T.A.; Lin, J; Yuan, S. J.; Vollertsen, F. (Edtrs.): New Forming Technology 2015 - Proceedings of the 4th ICNFT, MATEC Web of Conferences, 2015, pp. 09013. 1-7

    • 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

    • Merklein, M.; Junker, D.; Schaub, A.; Kretschmer, A.; Lechner, M.:
      Development of a New Method for Producing Plane Expanded Metal by Laser Cutting and Forming of Metal Plates under Uniaxial Tension.
      Key Engineering Materials 639(2015), pp. 131-136

    2014

    • 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

    • Schaub, A.; Juechter, V.; Singer, R. F.; Merklein, M.:
      Characterization of hybrid components consisting of SEBM additive structures and sheet metal of alloy Ti-6Al-4V.
      Key Eng. Mater. 611-612 (2014), pp. 109-116

    • Schaub, A.; Ahuja, B.; Karg, M.; Schmidt, M.; Merklein, M.:
      Fabrication and Characterization of Laser Beam Melted Ti-6Al-4V Geometries on Sheet Metal.
      In: Demmer, A.; Fraunhofer IPT (Edtrs.): Proc. Fraunhofer Direct Digital Manufacturing Conference - DDMC 2014, Fraunhofer, 2014, pp. 1-5

    • Merklein, M.; Meschut, G.; Müller, M.; Hörhold, R.:
      Basic Investigations of Non-Pre-Punched Joining by Forming of Aluminium Alloy and High Strength Steel with Shear-Clinching Technology.
      Key Eng. Mater. 611-612(2014), pp. 1413-1420

    • Merklein, M.; Suttner, S.; Schaub, A.:
      Experimental investigation of Ti-6Al-4V with a biaxial tensile test setup at elevated temperature.
      Key Eng. Mater. 622-623 (2014), pp. 273-278

    • Müller, M.; Hörhold, R.; Merklein, M.; Meschut, G.:
      Analysis of material behaviour in experimental and simulative setup of joining by forming of aluminium alloy and high strength steel with shear-clinching technology.
      Adv. Mater. Res. 966-967(2014), pp. 549-556

    • 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

    • Ahuja, B.; Schaub, A.; Karg, M.; Lechner, M.; Merklein, M.; Schmidt, M.:
      Developing LBM process parameters for Ti-6Al-4V thin wall structures and determining the corresponding mechanical characteristics.
      Physics Procedia 56 (2014), pp. 90-98

    • 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

    • Juechter, V.; Schaub, A.; Merklein, M.; Singer, R. F.:
      Titanium metal sheet structures of various wall thicknesses with additional functional elements prepared by selective electron beam melting in a powder bed.
      In: Drstvensek, I. (Edtr.): Proc. 5th International Conference on Additive Technologies - iCAT2014, Interesansa - zavod, 2014, pp. 119-122

    • Müller, M.; Vierzigmann, U.; Hörhold, R.; Meschut, G.; Merklein, M.:
      Adaption des Ringstauchversuchs für die Untersuchung der tribologischen Bedingungen beim Fügen warmumgeformter Stähle mittels Schneidclinchen.
      In: M. Merklein (Edtr.): 9. Erlanger Workshop Warmblechumformung, Meisenbach, 2014, pp. 163-174

    • Ahuja, B.; Schaub, A.; Junker, D.; Karg, M.; Tenner, F.; Plettke, R.; Merklein, M.; Schmidt, M.:
      A round robin study for Laser Beam Melting in Metal Powder Bed: Comparing mechanical characteristics with system technology variation.
      In: (Edtr.): Proc. 15th Annual Conference of RAPDASA 2014, 2014, accepted

    2013

    • 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

    • Merklein, M.; Hagenah, H.; Kaupper, M.; Schaub, A.:
      Mechanical response of Ti-6Al-4V alloy on deformation at moderate temperatures.
      Key Eng. Mater. 549 (2013), pp. 311-316

    • Merklein, M.; Hagenah, H.; Kaupper, M.; Schaub, A.:
      Analysis of the deformation behavior of Ti-6Al-4V at elevated temperatures.
      Key Eng. Mater. 554-557 (2013), pp. 29-32

    • 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

    • 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

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

    • Merklein, M.; Meschut, G.; Müller, M.; Hörhold, R.:
      Grundlegende Untersuchungen zur Verbindung von pressgehärtetem Stahl und Aluminium mittels Schneidclinchen.
      In: A. Brosius (Edtr.): Tagungsband - 20. Sächsiche Fachtagung Umformtechnik, 2013, pp. 63-72

    • Schaub, A.; Merklein, M.; Juechter, V.; Singer, R. F.; Koerner, C.:
      Funktionsintegration durch die Kombination additiver Fertigungsprozesse mit der Blechumformung.
      In: Drummer, D. (Edtr.): 2. Industriekolloquium des Sonderforschungsbereichs 814 - Additive Fertigung, Print Line, 2013, pp. 87-101

    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

    • 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

    • 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

    2011

    • 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

    Last Update: 01.02.2017