METHOD OF MAKING A ROTOR YOKE AND ROTOR YOKE THEREOF
    5.
    发明公开
    METHOD OF MAKING A ROTOR YOKE AND ROTOR YOKE THEREOF 有权
    用于生产转子磁轭

    公开(公告)号:EP2234880A1

    公开(公告)日:2010-10-06

    申请号:EP08728622.5

    申请日:2008-01-31

    IPC分类号: B64C27/00

    CPC分类号: B64C27/32 B64C27/33

    摘要: A method of making a rotor yoke includes preparing a cured composite rotor yoke preform on a single-sided curing tool and machining at least one portion of the cured rotor yoke preform to form a rotor yoke. In one embodiment, preparing the cured composite rotor yoke is accomplished by applying successive layers of uncured polymeric composite material to a single-sided tool in a configuration to produce an uncured rotor yoke preform; disposing a semi-rigid caul to an untooled side of the uncured rotor yoke preform; enclosing the uncured rotor yoke preform and the semi-rigid caul by substantially hermetically sealing a vacuum bag to the tool; substantially evacuating a volume defined by the vacuum bag and the tool of air; and heating the uncured rotor yoke preform, sometimes under pressure, to form the cured composite rotor yoke preform.