Functional surfaces

The surface topography and boundary layer of a component have a significant influence on its functionality, as this is where interactions with the environment and the technical system take place. This aspect is particularly important for tribologically stressed or biologically functional surfaces, as well as sealing and joining surfaces. For example, specifically adjusted sliding surfaces can reduce friction losses and wear.

Trends

  • Simulation-based design and modeling of functional surfaces
  • Application-specific material selection
  • Surface and boundary layer modification tailored to the specific application
  • Metrological and functional component evaluation

Reference projects

Development of grip-resilient climbing holds

Climbing holds, e.g., for bouldering, become very dirty and wear out quickly, which is why they need to be cleaned or replaced regularly. Until now, the assessment of grip and wear has been purely subjective. The project is developing a multi-criteria testing method for the objective evaluation of the properties of climbing holds. This method serves as the basis for the targeted development and manufacture of grip-resilient and sustainable climbing holds.

Reduced electrical contact resistance

The manually operated plug-socket connections currently used in electric vehicles are limited by the low operating force required. In contrast, face-to-face connections offer the potential for significantly higher transferable electrical power. The geometry and topography of the contact surfaces are important factors in the development of a new type of face-to-face connection for electrical power transmission in the megawatt range.

Validated increase in static friction coefficient for high-precision clamping systems

Increased demands on machine tools require innovations in the size and design of currently used clamping systems in order to meet conflicting requirements for higher clamping torques to increase machining volumes and reduced normal forces for the implementation of electromechanical drives. To this end, friction-enhancing surfaces have been developed for the friction partners of the clamping system. 

Friction reduction in reciprocating piston systems and drive components

Energy-controlled machining finishing and structural rolling provide new manufacturing methods for the finish machining of sliding surfaces. Lower coefficients of friction result in a longer service life for components with increased and expanded functionality.

Publications on the topic

Jahr
Year
Titel/Autor:in
Title/Author
Publikationstyp
Publication Type
2023 Investigations on the surface texture after pulsed electrochemical machining (PECM) of the magnetic shape memory alloy NiMnGa
Böttcher, Falko; Schneider, Jörg; Husnain, Rizwan Ul; Edelmann, Jan; Böhm, Andrea
Konferenzbeitrag
Conference Paper
2023 Precise parallel processing of a magnetic shape memory alloy using PECM
Böttcher, Falko; Schneider, Jörg; Husnain, Rizwan Ul; Edelmann, Jan
Meeting Abstract
2023 Experimental setup for long term high-precision static friction tests for clamping systems of rotary tables in cutting machine tools
Wieland, Sebastian; Zschech, Richard; Schneider, Jörg; Müller, Jens; Edelmann, Jan
Konferenzbeitrag
Conference Paper
2023 Experimental setup for long term high-precision static friction tests for clamping systems of rotary tables in cutting machine tools
Wieland, Sebastian; Zschech, Richard; Schneider, Jörg; Müller, Jens; Edelmann, Jan
Konferenzbeitrag
Conference Paper
2022 Mikrostrukturierung von Bohrungsmantelflächen
Funke, Roman; Schmidt, Torsten; Schubert, Andreas; Edelmann, Jan
Zeitschriftenaufsatz
Journal Article
2022 Simulation concept for surface designs increasing the coefficient of static friction
Walther, Franz; Wieland, Sebastian; Schneider, Jörg; Edelmann, Jan
Konferenzbeitrag
Conference Paper
2021 New Separation Processes for Fabrication of Magnetic Shape Memory Actuator Elements
Böhm, Andrea; Meichnser, Gunnar; Schneider, Jörg; Drossel, Welf-Guntram
Konferenzbeitrag
Conference Paper
2020 Surface modification of forming tools for aluminum sheet metal forming
Kuisat, Florian; Abraham, Tim; Schmidt, Torsten; Weber, Martin; Demmler, Matthias; Bräuer, Günter; Lasagni, Andrés Fabián
Zeitschriftenaufsatz
Journal Article
2020 Tool concept for structure rolling to improve tribologically stressed components
Schmidt, Torsten; Schneider, Jörg; Edelmann, Jan
Konferenzbeitrag
Conference Paper
2019 Surface modification for SMC moulding tools by laser remelting
Gärtner, Eric; Vogel, Marc; Schneider, Jörg; Edelmann, Jan
Konferenzbeitrag
Conference Paper
2019 Advanced manufacturing approach via the combination of selective laser melting and laser metal deposition
Schneider, Jörg; Seidel, André; Gumpinger, Johannes; Riede, Mirko; Lopez, Elena; Brückner, Frank; Leyens, Christoph
Zeitschriftenaufsatz
Journal Article
2019 Funktionsoberflächen für den Werkzeugbau zum Pressen und Lackieren glasfaserverstärker Kunststoffe
Schneider, Jörg
Konferenzbeitrag
Conference Paper
2019 Sealing of glass with titanium by glass pressing at the softening point
Winkler, Sebastian; Edelmann, Jan; Günther, Daniel; Wieland, Sebastian; Selbmann, Franz; Baum, Mario; Schubert, Andreas
Zeitschriftenaufsatz
Journal Article
2019 Surface modification of additively manufactured gamma titanium aluminide hardware
Seidel, André; Davids, Andreas; Polenz, Stefan; Straubel, Ariane; Maiwald, Tim; Moritz, Juliane; Schneider, Jörg; Marquardt, Axel; Saha, S.; Riede, Mirko; Lopez, Elena; Brückner, Frank; Leyens, Christoph
Zeitschriftenaufsatz
Journal Article
Diese Liste ist ein Auszug aus der Publikationsplattform Fraunhofer-Publica

This list has been generated from the publication platform Fraunhofer-Publica