METHOD FOR MANUFACTURING A METAL SHELL FOR A HEARING DEVICE

The present invention provides a method for manufacturing a metal shell for a hearing device, the metal shell comprising a first opening and a second opening, wherein the second opening is smaller than the first opening, the method comprising: fabricating a preform of the metal shell, the preform co...

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Bibliographische Detailangaben
Hauptverfasser:	Richner, Patrizia, Thumm, Natasha, Ochsenbein, Andre
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS
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Beschreibung
Zusammenfassung:	The present invention provides a method for manufacturing a metal shell for a hearing device, the metal shell comprising a first opening and a second opening, wherein the second opening is smaller than the first opening, the method comprising: fabricating a preform of the metal shell, the preform comprising a main body defining an internal cavity and at least one sacrificial element formed on the main body, the main body having a first position where the first opening is located and a second position where the second opening is located; smoothening a surface of the preform; and finishing the preform to obtain the metal shell, characterized in that finishing the preform comprises removing the at least one sacrificial element. According to the present invention, it is possible to manufacture simply, efficiently and reliably the metal shell for the hearing device.