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Rotor carriers form the central element of P2 hybrid modules. The outside of the rotor carrier serves as a joining area for the rotor lamination stack of the electric motor. On the inside, depending on the design, there are one or more lamellae splines. These form part of the clutches of the dual-clutch transmission (DCT) as well as the clutch for disconnecting the combustion engine from the drivetrain.
Forged rotor carriers offer high functionality in tight assembly spaces and demonstrate very good run-out properties. At Hirschvogel, we usually produce these complex components using a combination of hot and cold forging as well as machining and welding processes. The lamellae splines on the forging are introduced by means of cold forging. Following the forging process, they have ready-for-assembly tolerances and do not require subsequent machining. On request, we can take on additional manufacturing tasks such as the assembly of sensor lamination stacks.
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