| Zugriffsnummer | 42832 |
| Dokumenttyp | Konferenzartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Design and manufacturing of cavitation jet nozzles on the micro/meso scale |
| Autor(in); Institution |
Meeß, Rudolf; 5.5, Wissenschaftlicher Gerätebau, PTB-Braunschweig
Wolpert, Christian; 5.5, Wissenschaftlicher Gerätebau, PTB-Braunschweig
Schumann, Daniel; 1.5, Flüssigkeiten, PTB-Braunschweig
|
| Quelle/Jahr | Proceedings of the 19th International Conference of the European Society for Precision Engineering and Nanotechnology:(2019), 486 - 487 |
| Artikelnummer | O6.04 |
| Availability | [USB-Stick] |
| Herausgeber(in) |
Billington, D.
|
| ISBN | 978-0-9957751-4-5 |
| Verlag | Bedford: Euspen |
| Konferenzangaben | 19th International Conference of the European Society for Precision Engineering and Nanotechnology, Bilbao, 3-7, June, 2019, Spain |
| Freie Schlagworte | Design ; Manufacturing ; Flow ; Measurement |
| Zusammenfassung | In order to investigate cavitation in jet nozzles, different versions of conic/cylindrical channels are manufactured. In addition to the base geometry, the transition from cylindrical to conical sections is assumed to have a significant influence. Furthermore, the surface topography affects the boundary layer and thus the cavitation. Different stainless-steel nozzles are manufactured by means of sink EDM (electrical discharge machining). The central cylindrical channels have diameters between 0.14 mm and 2.6 mm. The conical sections have angles of 7° and 21°. The electrodes are made of tungsten copper, tungsten carbide and carbon. Shape transitions with radii of approx. 3 μm can be achieved and the average roughness values of the surfaces start at approx. 0.3 μm. Form accuracies are within a few μm. The design, material and manufacturing process of the electrodes for sink EDM are reported in this paper. Strategies for levelling and centring cylindrical and conical tools at the micro/meso scale are of crucial importance. |
| Themenbereich der Metrologie | Durchfluss |