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Investment casting of surfaces with microholes and their possible applications

: Ivanov, T.; Bührig-Polaczek, A.; Vroomen, U.; Hartmann, C.; Holtkamp, J.; Gillner, A.; Bobzin, K.; Bagcivan, N.; Theiß, S.

Lindsay, S.J. ; The Minerals, Metals and Materials Society -TMS-, Warrendale/Pa.:
Light Metals 2011 : Proceedings of the technical sessions presented by the TMS Aluminum Committee at the TMS 2011 Annual Meeting & Exhibition; San Diego, California, USA, February 27-March 3, 2011
Warrendale, Pa.: TMS, 2011
ISBN: 978-1-11802-935-0
Light Metals Meeting and Exhibition <2011, San Diego/Calif.>
Conference Paper
Fraunhofer ILT ()

The usual way of realizing microstructured features on metallic surfaces is to generate the designated pattern on each single part by means of laser ablation, electro discharge machining or micro milling. A disadvantage of these process chains is the limited productivity due to the additional processing of each part. The approach taken by this project is to replicate microstructured surfaces via investment casting. The main research objective deals with the investigation of single process steps of the investment casting process with regard to the molding accuracy. To demonstrate the potential of microcast surfaces, current results for the casting of a microstructured hydrophobic surface will be shown.