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US 2004/0175261 A1Published application
Method of manufacturing vacuum pump rotors, and rotors obtained thereby
OwnerFausto Casaroinventor
Life of this patent
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Abstract
A rotor having a set of radial peripheral vanes for a high vacuum turbomolecular pump is manufactured by forging a metal workpiece to obtain a generally cylindrical body (1,11) with homogeneous mechanical properties and subsequent mechanical workings.
Claims9
A method of manufacturing a rotor for a high vacuum turbomolecular pump, comprising the steps of:
- providing a workpiece being made of a material suitable for producing of said rotor;
- forging said workpiece to obtain a generally cylindrical body(1,11) having a homogeneous mechanical properties, and
- obtaining one or more sets of radial peripheral vanes thereon.
The method as claimed in any preceding claim, further comprising a step of processing said at least one set of radial peripheral vanes by one or more techniques selected from the group consisting of milling, turning and electric discharge machining.
Dependencies are inferred from the claim text.