Microstructuring of Thermo-Mechanically Highly Stressed Surfaces
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Microstructuring of Thermo-Mechanically Highly Stressed Surfaces

Final Report of the DFG Research Group 576
Berend Denkena
Springer International Publishing
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ISBN-13:
9783319096926
Veröffentl:
2014
Einband:
eBook
Seiten:
175
Autor:
Berend Denkena
Serie:
Lecture Notes in Production Engineering
eBook Typ:
PDF
eBook Format:
Reflowable eBook
Kopierschutz:
Digital Watermark [Social-DRM]
Sprache:
Englisch
Systemvoraussetzungen
Beschreibung:

The fuel consumption of a modern combustion engine is one of the most important purchase criteria in contemporary society. Increasing oil prices and exhaust emissions taxes force the automotive industry to continuously improve the vehicle engines. The fuel consumption is closely related to the frictional losses of an engine. New material pairings or constructive modifications of the piston group can reduce such losses. Another innovative concept to lower the frictional forces is the micro-structuring of thermo-mechanically highly stressed surfaces. Within an interdisciplinary research group sponsored by the German Research Foundation, scientists at the Leibniz Universitat Hannover and Universitat Kassel have been working together to investigate this research topic. This final report presents their findings and offers scope for further discussion.

The fuel consumption of a modern combustion engine is one of the most important purchase criteria in contemporary society. Increasing oil prices and exhaust emissions taxes force the automotive industry to continuously improve the vehicle engines. The fuel consumption is closely related to the frictional losses of an engine. New material pairings or constructive modifications of the piston group can reduce such losses. Another innovative concept to lower the frictional forces is the micro-structuring of thermo-mechanically highly stressed surfaces. Within an interdisciplinary research group sponsored by the German Research Foundation, scientists at the Leibniz Universität Hannover and Universität Kassel have been working together to investigate this research topic. This final report presents their findings and offers scope for further discussion.

Introduction.- Project overview.- Methods and models for the design of microstructures.- Micro structuring by means of cutting processes.- Micro structured thermal sprayed surfaces.- Surface characterization based on optical metrology.- Tribological mechanisms of micro structures.- Test of cylinder liner under fired engine conditions.

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