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AssigneeVogelsang GmbH & Co. KG
InventorsPeter Hartogh, Michael Rolfes, Hugo Vogelsang
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A method of manufacturing a metallic rotor of an eccentric screw pump, comprising clamping a workpiece extending along a central longitudinal axis in a workpiece clamping device and removing material from the workpiece by cutting with a cutting tool. The invention further comprises not producing the surface of the rotor in a three-axis whirling process, using the cutting tool to produce the outer surface geometry of the rotor, advancing the cutting tool along an axis of advance that is parallel to the longitudinal axis of the rotor, and rotating the cutting tool about an axis of tool rotation that is parallel to the longitudinal axis of the rotor.
A rotor for an eccentric screw pump, the rotor having a helical geometry with a central worm axis that winds helically around a central longitudinal axis of the rotor, wherein the rotor is produced in a milling process in which a milling tool rotating about a tool rotation axis which is not parallel to a central longitudinal axis of the rotor is used for the machining production of the rotor from a workpiece.
Dependencies are inferred from the claim text.