Micromachining Of Ceramics Bearing Components For Turbomachinery Applications

Abstract

This paper addresses the production by micro Electrical Discharge Machining (EDM) milling ofceramics thrust bearing surfaces to be inserted in an air bearing unit for high speed (up to 500 krpm)turbomachinery applications. A ZrO2-TiN electrical conductive ceramic composite is here selected as structuralmaterial in order to fulfil the functional requirements of the component and allow its accurate and flexiblemachining via EDM. EDM experiments are firstly conducted towards the definition of suitable machiningconditions. The components are realized by applying a layer-by layer milling strategy. The surface quality andgeometrical accuracy are finally evaluated; the surface roughness obtained is 0.23 mm and the overall accuracy iswithin 2 mm.


Tutti gli autori

  • Ferraris E.; Waumans T.; Modica F.; Peirs J.; Reynaerts D.

Titolo volume/Rivista

Non Disponibile


Anno di pubblicazione

2010

ISSN

Non Disponibile

ISBN

9789073802889


Numero di citazioni Wos

Nessuna citazione

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Settori ERC

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Codici ASJC

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