Rotor-stator device having an abradable coating film

A device includes a rotor and a stator enclosing the rotor. The stator includes a deep-drawn workpiece and having a thermally sprayed abradable coating film deposited on the deep-drawn workpiece. A minimal gap is disposed between the rotor and the stator. In addition, a method for manufacturing the...

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Bibliographische Detailangaben
Hauptverfasser: ZOLLER ANSGAR, HOLDIK KARL
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A device includes a rotor and a stator enclosing the rotor. The stator includes a deep-drawn workpiece and having a thermally sprayed abradable coating film deposited on the deep-drawn workpiece. A minimal gap is disposed between the rotor and the stator. In addition, a method for manufacturing the device includes the steps of forming a workpiece by deep-drawing into one of the stator and an insert of the stator, depositing an abradable coating film on the stator using a thermal spray coating method, and ablating the abradable coating film using the rotor so as to form the minimal gap.