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    METHOD FOR REPLACING ROTOR BLADE OF ROTOR WITH INTEGRATED BLADE
    1.
    发明专利
    METHOD FOR REPLACING ROTOR BLADE OF ROTOR WITH INTEGRATED BLADE 失效

    公开(公告)号：JPH10153101A

    公开(公告)日：1998-06-09

    申请号：JP32395997

    申请日：1997-11-11

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： BAUMGARTEN ROBERT W ,  COOLIDGE KENNETH D

    IPC: B23P6/00 ,  F01D5/00 ,  F01D5/30 ,  F01D5/34 ,  F01D25/00 ,  F02C7/00

    Abstract: PROBLEM TO BE SOLVED: To facilitate replacement of a rotor blade by cutting off a defective blade leaving a blade stub part, forming a platform on the rest thereof, and then, integrating a replacement blade by joining with a platform of the replacement blade, and carrying out finishing by cutting an excess part of the joining part. SOLUTION: In the case where a defective blade of a rotor with an integrated blade is repaired, a part of the defect blade, namely, a blade stub 34 is left, and the other is eliminated. A radial direction outer surface 42 of the blade stub 34 is mechanically worked to a prescribed flat form in a specified direction in relation to a disk 12. After a blade repair die 24 is installed on the blade stub 34, a hydraulic cylinder 41 is operated, die half bodys 26, 28 are fixed to the blade stub 34, and the platform 46 is formed integratedly with the blade stub 34 in this condition. After that, a platform 52 of a replacement blade 50 is joined with the platform 46, and then, an excess part is eliminated, and repair is completed.

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