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Compact fixturing based on magneto-rheological fluids for aeronautic stringers milling

: O Rodríguez, M. de la; Collado, V.; Böse, H.; Gerlach, T.; Würz, T.; Holz, B.; May, C.; Thoelen, J.; Porras, E.; Marcos, J.; Ionescu, M.


SAE International journal of aerospace 2 (2010), No.1, pp.59-66
ISSN: 1946-3855
ISSN: 1946-3901
Journal Article
Fraunhofer ISC ()

The paper explains the compact fixturing based on magneto-rheological (MR) fluids that have been designed and validated for aeronautic stringers milling. The MR fluid based tooling developed is flexible and reconfigurable as it can be adapted to different profile's lengths and sections and it is able to fix compliant workpieces without reference faces as the MR fluid adapts to the outer shape of each profile. The MR fluid based tooling is suitable to hold non-magnetic materials such as aluminum and also materials that do not admit high clamping forces, such as titanium, because they will appear as deformation after machining due to the memory effect of titanium. The MR fluid based tooling has been tested in a machine environment under real machining conditions and promising results have been obtained.