ROTOR MANUFACTURING METHOD AND ROTOR MANUFACTURING APPARATUS
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United States of America Patent
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Issued Date -
Apr 4, 2024
app pub date -
Sep 25, 2023
filing date -
Sep 30, 2022
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Abstract
A method for manufacturing a rotor including a rotor body, and a sleeve surrounding an outer peripheral portion of the rotor body and applying a pressurizing force toward an inner periphery to the rotor body, includes: preparing the sleeve having a tubular shape and having an inner diameter smaller than an outer diameter of the rotor body; expanding an inner diameter of the sleeve to be larger than an outer diameter of the rotor body, by applying a liquid pressure to an inner diameter portion of the sleeve; inserting the rotor body into the inner diameter portion of the sleeve while applying the liquid pressure; and fixing the sleeve to the rotor body by removing the liquid pressure and contracting the sleeve.
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