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Design and Manufacture of a Highly Reliable, Miniaturized and Low Mass Shutter MechanismThis paper describes the development, manufacturing and testing of a lightweight shutter mechanism made of titanium for the MERTIS Instrument. MERTIS is a thermal infrared imaging spectrometer onboard ESA's future BepiColombo mission to Mercury. The mechanism is built as a parallelogram arrangement of flexible hinges, actuated by a voice coil. In a first test run, it was shown that the selected EDM processing led to the generation of titanium oxides and an oxygen-enriched surface layer on the substrate (so called alpha-case layer). In the revised version of the shutter, it was possible to manufacture the complex geometry by micro-milling and an adjacent pickling procedure. The adequacy of this approach was verified by lifetime and vibration testing.
Document ID
Document Type
Conference Paper
Manhart, M. (Kayser Threde G.m.b.H. Munich, Germany)
Zeh, T. (Kayser Threde G.m.b.H. Munich, Germany)
Preibler, G. (Kayser Threde G.m.b.H. Munich, Germany)
Hurni, A. (Kayser Threde G.m.b.H. Munich, Germany)
Walter, I. (Deutsches Zentrum fuer Luft- und Raumfahrt e.V. Berlin, Germany)
Helbert, J. (Deutsches Zentrum fuer Luft- und Raumfahrt e.V. Berlin, Germany)
Hiesinger, H. (Westfaelische Wilhelms Univ. Muenster, Germany)
Date Acquired
August 29, 2013
Publication Date
May 12, 2010
Publication Information
Publication: Proceedings of the 40th Aerospace Mechanisms Symposium
Subject Category
Instrumentation and Photography
Distribution Limits
Public Use Permitted.

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