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US 6,634,081 B2Granted
Method of manufacturing core laminations for laminated cores of rotors and/or stators
AssigneeKienle & Spiess Stanz- ung Druckgiesswerk GmbH
InventorsErich Köhler, Gerd Rommel
Life of this patent
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Abstract
Core laminations for laminated cores of rotors and stators are partially made of partial ring segments that are at least partially stamped out of a central part produced as a remainder in a piece of sheet metal when manufacturing annular core laminations.
Claims11
A method for manufacturing annular core laminations for laminated cores of rotors and stators, said method comprising the steps of:
- stamping a full ring and at least one partial ring segment out of sheet metal, wherein the at least one partial ring segment is stamped from a first portion of the sheet metal forming a central part surrounded by a second portion of the sheet metal, wherein the full ring is cut from the second portion of the sheet metal such that an inner circumference of the full ring and an outer circumference of the central part coincide, wherein the full ring forms a first integral annular core lamination;
- and
- forming a second divided annular core lamination from the at least one partial ring segment.
Dependencies are inferred from the claim text.