2021


IVT- Electric, Hybrid and alternative Powertrain Solutions29 und 30 Juni 2021
8. Fachtagung Hybride und energieeffiziente Antrieb für mobile Arbeitsmaschinen, VDMA KIT23. Februar 2021
4TH Annual Electrification & Battery Development for Non-Road Applications

18 und 19 Januar 2021


2020


E-Motive 12TH Konferenz

15. bis 17. September 2020

iVT EXPO INDUSTRIAL VEHICLE TECHNOLOGY, Köln24. bis 25. Juli 2020
AIAA AVIATION Forum, Reno (USA)

C. Ocker, T.F. Geyer, F. Czwielong, F. Krömer, S. Becker, M. Merkel, W. Pannert, Experimental Investigation of the Impact of 3D-Metal-Printed Perforated Leading Edges on Airfoil and Axial Fan Noise. Proceedings of 26th AIAA/CEAS Aeronautics Conference, 2020, 14-19 June.

https://doi.org/10.2514/6.2020-2529


15. bis 19. Juni 2020
WindForS Spring Meeting, Stuttgart25. bis 27 Februar 2020

3rd Annual Electrification & Battery Development for Non-Road Applications, Frankfurt

06. bis 07. Februar 2020
WJAM International Conference / Welding, Joining & Additive Manufacturing, Ramat-Gan (Israel)27. bis 29. Januar 2020

2019


13th International Conference on Advanced Computational Engineering and Experimenting, ACEX-2019, Athen01.bis 05. Juli 2019
Hannover Messe, Hannover01. bis 05. April 2019
MAV Innovation Forum, Böblingen21. März 2019
Electric & Hybrid Industrial Vehicle Technology Conference 2019, Köln13. und 14. Februar 2019

2018


Technologietag Leichtbau 2018, Schwäbisch Gmünd

23. Oktober 2018
Experience Additive Manufacturing, Augsburg25. bis 27. September 2018
"100 Stunden Morgen" Themenwoche zur digitalen Zukunft und Innovation im Mittelstand, Stuttgart24. bis 28. September 2018
make Ostwürttemberg ZUKUNFT. TRENDS. DIGITALITÄT., Heidenheim22. und 23. September 2018
IUTAM Symposium on Mechanical Design and Analysis for AM Technologies, Moskau

J. Tomas, M. Merkel, H. Altenbach, On the optical thermography in selective laser melting process. (Keynote), IUTAM Symposium on Mechanical Design and Analysis for AM Technologies.Moscow, Russia, August 20 – 25, 2018

20. bis 25. August 2018

12th International Conference on Advanced Computational Engineering and Experimenting, ACEX-2018, Amsterdam

01. bis 05. Juli 2018
Pro-AM 2018, The 3rd International Conference on Progress in Additive Manufacturing, Singapore

J. Tomas, T. Schubert, T. Bernthaler, M. Merkel, G. Schneider, D. Sellmer, Laser sintering of tungsten carbide cutter shafts with integrated cooling channels, Proceedings of the 3rd International Conferences on Progress in Additive Manufacturing, 297 - 302, 2018.

https://hdl.handle.net/10356/88554


14. bis 17. Mai 2018
Hannover Messe, Hannover23. bis 27. April 2018

Laufende Projekte

Green Hub für die Paketlogistik der Zukunft
09.2020 - 08.2022
ErgonomIsche Cyberphysische Gehölzverpflanzungsmaschine, schwingungsoptimiert mit Online Wartung
08.2020 - 01.2023
Hybride Integration von Faserverbundkomponenten und additiv gefertigter metallischer Komponenten für Hochpräzisionsanwendungen (µFa3DMet)
02.2020 - 07.2021
Additive Verschleißschicht mit integrierter Sensorik (AViS)10.2019 - 12.2021
Automatisiertes Modul zur intelligenten Nachbearbeitung im Metall 3D-Druck
09.2019 - 08.2021
Robuste Auslegung und Dimensionierung sicherheitsrelevanter Bauteile für den 3D-Metalldruck (ROAD3D)
07.2019 - 12.2021
SmartPro AddFunk2017 - 2021

Abgeschlossene Projekte

Kompaktes, smartes Magnetventil für den Einsatz in der Mobil- und Stationärhydraulik
05.2018 - 11.2020
3D-Druck für Hochpräzisionskomponenten und Medizingerätetechnik: neue Anwendungsgebiete durch smarte Materialien und intelligentes Design (3DPräkomMed)
05.2019 - 04.2020
Entwicklung einer intelligenten und energieeffizienten (hybriden) elektrischen Antriebsplattform für Multifunktionsfahrzeuge Muffel+
08.2017 - 01.2020

Selektives Lasersintern zum Aufbau von Hartmetall Bauteile

08.2016 - 11.2019
Gehäusesystem für Bild- und Lidarsensoren
02.2019 - 08.2019

Entwicklung von additiv hergestellten Komponenten für Tiefziehwerkzeuge

09.2017 - 08.2019
Selbstoptimierendes optisch messendes Sensorsystem basierend auf additiv gefertigten optischen Komponenten
12.2015 - 11.2018
SuperCOOL – Entwicklung eines aktiv gekühlten, miniaturisierten, additiv hergestellten Kühlkörpers für eine LED Lupenbrillenbeleuchtung
09.2015 - 01.2018
Entwicklung eines formvariablen Tresorsystems für den mobilen Einsatz
10.2015 - 02.2018

Erforschung und Entwicklung einer kompakten Gleitringdichtung in Patronenbauweise auf der Basis von additiv hergestellten Teilkomponenten

08.2015 - 07.2017

Elektromobilität -Serienflexible Technologien für elektrische Antriebe von Fahrzeugen

07.2012 - 12.2015

Entwicklung einer Spannvorrichtung zum "Spannen ohne zu verspannen"

07.2012 - 01.2015

Entwicklung eines modular aufgebauten Werkzeugsystems zur flexiblen, schnellen und kostengünstigen Herstellung von Holzfenstern und Holzhaustüren

03.2012 - 02.2014

Papers

2021:

J. Tomas, A. Öchsner, M. Merkel, Experimental Study on Thermal Properties of Hollow Sphere Structures. Defect and Diffusion Forum, 407(4), 185-191, 2021

2020:

D. Schuhmann, M. Merkel, D.K. Harrison, Made to measure. The magazine for industrial vehicle technology, design & engineering, Ausgabe November 2020, 36-40, 2020

J. Tomas, L. Hitzler, M. Köller, J. von Kobylinski, M. Sedlmajer, E. Werner, M. Merkel, The Dimensional Accuracy of Thin-Walled Parts Manufactured by Laser-Powder Bed Fusion Process. J. Manuf. Mater. Process. 2020, 4(3), 91-103, 2020

https://doi.org/10.3390/jmmp4030091 

S. Hafenstein, L. Hitzler, E. Sert, A. Öchsner, M. Merkel, E. Werner, Critical Quenching Rates After Solution Annealing: Peculiarities of Aluminum–Silicon Alloys Fabricated by Laser Powder-Bed Fusion. TMS 2020 149th Annual Meeting & Exhibition Supplemental Proceedings. Springer International Publishing, 2020

doi:10.1007/978-3-030-36296-6_32 

L. Hitzler, E. Sert, E. Schuch, A. Öchsner, M. Merkel, B. Heine, E. Werner, Fracture toughness of L-PBF fabricated aluminium–silicon: a quantitative study on the role of crack growth direction with respect to layering. Progress in Additive Manufacturing, 2020

doi:10.1007/s40964-020-00113-x 

L. Hitzler, S. Hafenstein, F. Mendez Martin, H. Clemens, E. Sert, A. Öchsner, M. Merkel, E. Werner, Heat Treatments and Critical Quenching Rates in Additively Manufactured Al–Si–Mg Alloys. Materials 13 (3), 720-737, 2020

doi:10.3390/ma13030720 

M. Steinhauser, E. Sert, L. Hitzler, A. Öchsner, M. Merkel, Fatigue Behavior of the Additively Manufactured Tool Steel H13 after Surface Treatment using Different Post-Processing Methods. Practical Metallography, 57 (3), 140-167, 2020
doi:10.3139/147.110599 

H. Baumgartl, J. Tomas, R, Büttner, M. Merkel, A deep learning-based model for defect detection in laser-powder bed fusion using in-situ thermographic monitoring. Progress in Additive Manufacturing, 5, 277-285, 2020.

https://doi.org/10.1007/s40964-019-00108-3 

E. Sert, L. Hitzler, S. Hafenstein, M. Merkel, E. Werner, A. Öchsner, Tensile and compressive behaviour of additively manufactured AlSi10Mg samples. Progress in Additive Manufacturing 5, 305-313, 2020.

doi:10.1007/s40964-020-00131-9 

E. Sert, L. Hitzler, M. Merkel, E. Werner, A. Öchsner, Additive manufacturing of AlSi10Mg samples using the selective laser melting technique: correlation between tensile and torsion behavior. Materialwissenschaft und Werkstofftechnik 51 (7), 856-861, 2020.

doi:10.1002/mawe.202000083 


2019:

E. Sert, L. Hitzler, B. Heine, M. Merkel, E. Werner, A. Öchsner, Influence of the Heat Treatment on the Microstructure and Hardness of Additively Manufactured AlSi10Mg Samples. Pract. Metallogr., Vol. 56, No. 2, 91-105, 2019

https://doi.org/10.3139/147.110560 


E. Sert, E. Schuch, A. Öchsner, L. Hitzler, E. Werner, M. Merkel, Tensile strength performance with determination of the Poisson‘s ratio of additively manufactured AlSi10Mg samples. Materialwiss. Werkstofftech., 50, 539-545, 2019

https://doi.org/10.1002/mawe.201800233 


S. Heilgeist, B. Heine, M. Merkel, L. Hitzler, Z. Javanbakht, A. Öchsner, The influence of post-heat treatments on the tensile strength and surface hardness of selectively laser-melted AlSi10Mg. Materialwiss. Werkstofftech., 50, 546-552, 2019

https://doi.org/10.1002/mawe.201800236 

L. Hitzler, J. Hirsch, J. Tomas, M. Merkel, W. Hall, A. Öchsner, In-plane Anisotropy of Selective Laser Melted Stainless Steel: The Importance of the Rotation Angle Increment and the Limitation Window. Proc. Inst. Mech. Eng., Part L, 233(7), 1419-1428, 2019

https://doi.org/10.1177/1464420718757068 

L. Hitzler, E. Sert, M. Merkel, A. Öchsner, E. Werner, Fracture Toughness and Fatigue Strength of Selective Laser Melted Aluminium–Silicon: An Overview. The Minerals, Metals & Materials Society (ed.), TMS 2019 148th, 407-412, 2019

https://doi.org/10.1007/978-3-030-05861-6_37 

2018:

J.P. Körperich, M. Merkel, Thermographic analysis of the building height impact on the properties of tool steel in selective laser beam melting. Materials Science & Engineering Technology, 49 (5), 689-695, 2018

https://doi.org/10.1002/mawe.201800010 

L. Hitzler, M. Merkel, W. Hall, A. Öchsner, A Review of Metal Fabricated with Powder-Bed Based Additive Manufacturing Techniques: Process, Nomenclature, Materials, Achievable Properties, and its Utilization in the Medical Sector. Advanced Engineering Materials, 20 (5), 1-28, 2018.

https://doi.org/10.1002/adem.201700658 

L. Hitzler, N. Schoch, B. Heine, M. Merkel, W. Wall, A. Öchsner, Compressive behaviour of additively manufactured AlSi10Mg, Materials Science & Engineering Technology, 49, 683 - 688, 2018.

https://doi.org/10.1002/mawe.201700239 

E. Sert, L. Hitzler, M. Merkel, A. Öchsner, Development of additively manufactured, topology-optimized interface elements uniting an electrical drivetrain with a conventional chassis. Materials Science & Engineering Technology, 49, 674 - 682, 2018.

https://doi.org/10.1002/mawe.201700274 

L. Hitzler, J. Hirsch, J. Tomas, M. Merkel, W. Hall, A. Öchsner, In-plane Anisotropy of Selective Laser Melted Stainless Steel: The Importance of the Rotation Angle Increment and the Limitation Window. Journal of Materials: Design and Applications, 2018.

https://doi.org/10.1177/1464420718757068 

L. Hitzler, F. Alifui-Segbaya, P. Williams, B. Heine, M. Heitzmann, W. Hall, M Merkel., A. Öchsner, Additive Manufacturing of Cobalt-Based Dental Alloys: Analysis of Microstructure and Physicomechanical Properties, Advances in Materials Science and Engineering, vol. 2018,

https://doi.org/10.1155/2018/8213023 

2017:

L. Hitzler, P. Williams, M. Merkel, H. Wayne, A. Öchsner, Correlation between the Energy Input and the Microstructure of Additively Manufactured Cobalt-Chromium, Defect and Diffusion Forum, 379, 157 - 165, 2017.

https://doi.org/10.4028/www.scientific.net/DDF.379.157 

L. Hitzler, J. Hirsch, M. Merkel, A. Öchsner, Thermal environment and inclination angle dependencies on the surface quality of selective laser melted 316L steel, Defect and Diffusion Forum, 372, 202 - 207, 2017.

https://doi.org/10.4028/www.scientific.net/DDF.372.202 

L. Hitzler, J. Hirsch, M. Merkel, W. Hall, A. Öchsner, Position dependent surface quality in Selective Laser Melting. Materials Science & Engineering Technology, 48, 327 - 334, 2017.

https://doi.org/10.1002/mawe.201600742 

L. Hitzler, J. Hirsch, B. Heine, M. Merkel, W. Hall, A. Öchsner, On the Anisotropic Mechanical Properties of Selective Laster-Melted Stainless Steel, Materials, 10, 1136, 2017.

https://doi.org/10.3390/ma10101136 

L. Hitzler, J. Hirsch, J. Schanz, B. Heine, M. Merkel, W. Hall, A. Öchsner, Fracture toughness of selective laser melted AlSi10Mg, Journal of Materials: Design and Applications, 230, 789 – 798, 2017.

https://doi.org/10.1177/1464420716687337 

L. Hitzler, C. Janousch, J. Schanz, M. Merkel, B. Heine, F. Mack, W. Hall, A. Öchsner, Direction and location dependency of selective laser melted AlSi10Mg specimens, Journal of Materials Processing Technology, 243, 48 - 61, 2017. https://doi.org/10.1016/j.jmatprotec.2016.11.029 

J. Schanz, M. Hofele, S. Ruck, T. Schubert, L. Hitzler, G. Schneider, M. Merkel, H. Riegel, Metallurgical investigations of laser remelted additively manufactured AlSi10Mg parts, Materials Science & Engineering Technology, 48, 463 - 476, 2017.

https://doi.org/10.1002/mawe.201700039 

L. Hitzler, J. Hirsch, M. Merkel, W. Hall, A. Öchsner, Position dependent surface quality in selective laser melting, Materials Science & Engineering Technology, 48, 327 - 334, 2017.

https://doi.org/10.1002/mawe.201600742 

2016:

J. Schanz, M. Hofele, l. Hitzler, M. Merkel, H. Riegel, Laser polishing of additive manufactured AlSi10Mg parts with an oscillating laser beam, Machining, Joining and Modifications of Advanced Materials, Advanced Structured Materials, 61,159 - 169, 2016.

https://doi.org/10.1007/978-981-10-1082-8_16 

A. Liebisch, M. Merkel, On the numerical simulation of the thermal behavior during the selective laser melting process, Materials Science & Engineering Technology, 47, 521 - 529, 2016. https://doi.org/10.1002/mawe.201600528 

C. Janousch, R. Winkler, M. Merkel, H. Altenbach, A. Öchsner, On the isotropic and anisotropic thermal conductivity of metallic hollow sphere structures, Journal of Materials: Design and Applications, 230, 789 - 798, 2016. https://doi.org/10.1177/1464420715602726 

L. Hitzler, C. Janousch, J. Schanz, M. Merkel, F. Mack, A. Öchsner, Non-destructive evaluation of AlSi10Mg prismatic samples generated by selective laser melting: Influence of manufacturing conditions, Materials Science & Engineering Technology, 47, 564 - 581, 2016.

https://doi.org/10.1002/mawe.201600532 

2015:

L. Hitzler, M. Merkel, P. Freytag, Design of a subframe to integrate an electric drivetrain in existing vehicles, Materials Science & Engineering Technology, 46, 454 - 461, 2015.

https://doi.org/10.1002/mawe.201500421 


Conferences:

D. Schuhmann, S. Reusch, M. Merkel, D.K. Harrison, Modular and scalable electric drive platform for non-road mobile machinery, Tagungsband 12th Expert Forum Electric Vehicle Drives 15 – 17 September, 2020 - online

C. Ocker, T.F. Geyer, F. Czwielong, F. Krömer, S. Becker, M. Merkel, W. Pannert, Experimental Investigation of the Impact of 3D-Metal-Printed Perforated Leading Edges on Airfoil and Axial Fan Noise. Proceedings of 26th AIAA/CEAS Aeronautics Conference, 2020, 14-19 June.

https://doi.org/10.2514/6.2020-2529 

J. Tomas, M. Merkel, H. Altenbach, On the optical thermography in selective laser melting process. (Keynote), IUTAM Symposium on Mechanical Design and Analysis for AM Technologies.Moscow, Russia, August 20 – 25, 2018

M. Merkel, T. Schubert, T. Bernthaler, J. Tomas, G. Schneider, D. Sellmer, Laser sintering of tungsten carbide cutter shafts with integrated cooling channels, Proceedings of the 3rd International Conferences on Progress in Additive Manufacturing, 297 - 302, 2018.

https://doi.org/10.25341/D48G6C 

A. Gütlein, Dipl.-Ing.; F. Weber, Dipl.-Wirtschafts-Chemiker; T. Schubert, M.Sc.; Dr. T. Bernthaler, Dipl.-Ing.; M. Sedlmajer, M.Eng.; Prof. Dr.-Ing. M. Merkel, Herstellung von hybriden Gleitringen mittels additivem Verfahren, Conference report: 20th International Sealing Conference ISC, Volume 2018,

https://doi.org/10.1016/S1350-4789(18)30433-1 

A. Gütlein, F. Weber, A. Thiele, M. Merkel, M. Sedlmajer, D. Vogt, Cartridge seals with parts produced with laser beam melting, Conference report: 19th International Sealing Conference ICT, 2016. https://doi.org/10.1016/S1350-4789(16)30397-X

U. Berger, M. Merkel, A. Liebisch, The influence of preheating on laser beam melting, Proceedings of the 2nd International Conference on Progress in Additive Manufacturing (Pro-AM 2016), Singapore, 306-311, 2016.

https://dr.ntu.edu.sg/handle/10220/41809

Laufende Promotionen:

Josef Tomas
Charakterisierung der thermo-mechanischen Eigenschaften additiv gefertigter Komponenten
Otto-von-Guericke-Universität Magdeburg, Fakultät für Maschinenbau, Institut für Mechanik
Prof. Dr.-Ing. habil. Dr. h. c. mult. Holm Altenbach
Christof Ocker
Lokalization and Quantification of Rotating Aeroacoustical Sources 
Rheinisch-Westfälische Technische Hochschule Aachen, Deutschland,
Prof. Dr.-Ing. Wolfgang Schröder

Mario Rupp
Investigation and Analysis of Technological and Economical Aspects for Implementing Additive Manufacturing in the Process of Direct Digital Manufacturing
Glasgow Caledonian University, Scotland UK, School of Computing, Engineering and Built Environment,
Prof. D.K. Harrison, Prof. B. Wood

Dirk Schuhmann
Investigation on the integration of a hybrid powertrain into a multifunctional vehicle, including forward-looking production processes
Glasgow Caledonian University, Scotland UK, School of Computing, Engineering and Built Environment,
Prof. D.K. Harrison, Prof. B. Wood


Abgeschlossene Promotionen:

Dr. Leonhard Hitzler
Application of Selective Laser Melting in Density
Griffith University, Griffith School of Engineering and Built Environment, Gold Coast
Prof. Dr.-Ing. D. Sc. Andreas Öchsner
Ann-Katrin Weiser
Methodik eines holistischen Variantenmanagements modularer Produktfamilien - Grundlagen, Systematik und beispielhafte Anwendung der VMahead Methodik

Karlsruher Institut für Technologie, KIT-Fakultät für Maschinenbau
Prof. Dr. Dr.-Ing. Dr. h. c. Jivka Ovtcharova
Dr.-Ing. Rolf Winkler
Experimentelle und numerische Bestimmung strukturmechanischer und akustischer Eigenschaften von metallischen Hohlkugelstrukturen
Martin-Luther-Universität Halle-Wittenberg, Zentrum für Ingenieurswissenschaften,
Prof. Dr.-Ing. habil. Dr. h. c. mult. Holm Altenbach