Lehrstuhl für Fertigungstechnologie, Universität Erlangen-Nürnberg



Reduction of friction in EHD-contacts by microstructured surfaces of components – design, layout and manufacturing by forming (DFG - SPP 1551)



Project Status: Active

Members


Within the scope of the collaboration project between the Institute of Engineering Design (KTmfk) and the LFT, microstructures are developed especially for the tribological system of cam follower matchings, as a representative of highly loaded revolving sliding contacts, with the objective of friction reduction. A focus of the project is the technological realization of components with microstructured surfaces by a combined extrusion micro coining process coping with the demands of large-lot production. Due to filigree dimensions of microsructures surface characterization is of vital importance as a junction between the design of micro coining tools and the manufacturing of microstructured components. In a near-operation test rig a friction reduction of up to 17% was realized by microstructured surfaces in comparison to polished surfaces.

 


Research Groups


Publications

    2017

    • Zahner, M.; Andreas, K.; Engel, U.; Merklein, M.:
      Analysis of Production Limits in Manufacturing of Micro Coined Structures.
      In: (Edtr.): ASPEN/ASPE 2017 Spring Topical Meeting - Manufacture and Metrology of Structured and Freeform Surfaces for Functional Applications, 2017, pp. 82-85

    • Marian, M.; Zahner, M.; Tremmel, S.; Andreas, K.; Merklein, M.; Wartzack, S.:
      Design, Manufacturing and Tribological Performance of Microtextured Bucket Tappets for Friction Reduction in the Valve Train.
      In: (Edtr.): 6th World Tribology Congress (2017), Beijing/China, 2017, published

    • Tremmel, S.; Marian, M.; Zahner, M.; Weschta, M.; Engel, U.; Wartzack, S.; Merklein, M.:
      Reibungsreduzierung in EHD-Kontakten durch mikrostrukturierte Bauteiloberflächen – Auslegung, Gestaltung und umformtechnische Herstellung.
      In: Gesellschaft für Tribologie e.V. (Hrsg.) (Edtrs.): 58. Tribologie-Fachtagung. 2017, Son-derband Abschlusskolloquium „Ressourceneffiziente Konstruktionselemente“ SPP 1551 der DFG, 2017, pp. 149–166

    • Zahner, M.; Lentz, L.; Steinlein, F.; Merklein, M.:
      Investigation of Production Limits in Manufacturing Microstructured Surfaces Using Micro Coining.
      Micromachines 8(2017)322, published online

    2014

    • Schrader, T.; Weschta, M.; Merklein, M.; Tremmel, S.; Engel, U.; Wartzack, S.:
      Tribological aspects in manufacturing processes of microstructured components and their tribological behavior in operation.
      In: Groche, P. (Edtr.): Proc. 6th Int. Conf. on Tribology in Manufacturing Processes (ICTMP), Trans Tech Publications, 2014, pp. 323-335

    • Weschta, M.; Schrader, T.; Tremmel, S.; Merklein, M.; Wartzack, S.; Engel, U.:
      Mikrostrukturierung von Tassenstößeln zur Reibungsreduzierung im Ventiltrieb – Herstellung, Simulation und tribologische Charakterisierung.
      Tribologie und Schmierungstechnik 61(2014)1, pp. 21-28

    2013

    • Schrader, T.; Weschta, M.; Engel, U.; Tremmel, S.; Merklein, M.; Wartzack, S.:
      Microstructured surfaces in highly loaded EHD-contacts – manufacturing and tribological performance.
      In: Bouzakis, K.-D.; Bobzin, K.; Denkena, B.; Merklein, M. (Edtrs.): Proc. 10th Int. Conf. THE "A" Coatings in Manufacturing Engineering, Shaker, 2013, pp. 99-109

    • Schrader, T.; Weschta, M.; Engel, U.; Tremmel, S.; Merklein, M.; Wartzack, S.:
      Microstructured surfaces in highly loaded elastohydrodynamic (EHD)-contacts – manufacturing and tribological performance.
      Mat.-wiss. u. Werkstofftech. 44(2013)8, pp. 723-729

    • Weschta, M.; Schrader, T.; Tremmel, S.; Merklein, M.; Wartzack, S.; Engel, U.:
      Mikrostrukturierung von Tassenstößeln zur Reibungsreduzierung im Ventiltrieb – Herstellung, Simulation und tribologische Charakterisierung.
      In: Gesellschaft für Tribologie e. V. (Edtrs.): 54. Tribologie-Fachtagung, 2013, pp. 62/1-62/11

    Letztes Update: 08.09.2017