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    HYBRID METAL FAN BLADE
    12.
    发明专利
    HYBRID METAL FAN BLADE 未知

    公开(公告)号：SG173944A1

    公开(公告)日：2011-09-29

    申请号：SG2010089142

    申请日：2010-12-03

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： DEAL JAMES L ,  SCHIRRA JOHN J ,  DROZDENKO LEE ,  GRAVES WILLIAM R ,  HANSEN JAMES O

    Abstract: A fan blade is disclosed comprising a lightweight metallic airfoil portion and a high-strength sheath portion. The airfoil portion has a forward airfoil edge, a first airfoil surface, and a second airfoil surface. The sheath portion has a sheath head section, a first sheath flank, and a second sheath flank, both flanks extending chordwise from the forward sheath section. The sheath portion is bonded to the airfoil portion such that the sheath head section covers the forward airfoil edge, defining a blade leading edge. The first sheath flank covers a portion of the first airfoil surface proximate the airfoil forward edge, jointly defining a blade suction surface. The second sheath flank covers a portion of the second airfoil surface proximate the airfoil forward edge, jointly defining a blade pressure surface.Fig 2.

    Heat treatment to reduce embrittlement of tatanium alloys
    13.
    发明专利
    Heat treatment to reduce embrittlement of tatanium alloys 未知

    公开(公告)号：AU673890B2

    公开(公告)日：1996-11-28

    申请号：AU5896294

    申请日：1993-11-09

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： HANSEN JAMES O ,  NOVOTNAK DAVID

    IPC: C22C14/00 ,  C22F1/18 ,  F01D5/28 ,  C22C30/00 ,  C25C3/08 ,  C04B28/10 ,  C04B28/06

    Abstract: A non-burning Ti-V-Cr alloy which is heat treated to decrease its susceptibility to embrittlement in gas turbine engine compressor applications. The invention heat treat cycle consists of an isothermal holding period below the alpha solvus temperature, a slow ramp down to a lower temperature, a second holding period at a lower temperature, a third ramp down to an even lower temperature, and a final holding period at the third temperature. Other suitable heat treat cycles within the concept of the invention include a single holding period below the alpha solvus temperature double holding periods below the alpha solvus temperature with a ramp from a higher to a lower temperature and a continuous ramp below the alpha solvus temperature with no holding period.

    LEADING EDGE SHEATH MANUFACTURING METHOD
    18.
    发明公开
    LEADING EDGE SHEATH MANUFACTURING METHOD 审中-公开
    制造外观涂层的方法

    公开(公告)号：EP2969293A4

    公开(公告)日：2016-11-23

    申请号：EP13878459

    申请日：2013-12-16

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： HANSEN JAMES O ,  FURRER DAVID ULRICH

    IPC: B23P15/04 ,  B21D53/78 ,  B21K3/04 ,  F01D5/14 ,  F04D29/32

    CPC classification number: B23P15/04 ,  B21D53/78 ,  B21H7/00 ,  B21K3/04 ,  F01D5/288 ,  F04D29/324 ,  F05D2220/32 ,  F05D2230/20 ,  F05D2240/303

    Abstract: A method for manufacturing a protective sheath for a fan blade leading edge is described. The method may comprise generating a preform plate from a stock plate wherein the preform plate has a flattened surface and an inclined surface having a spike flanked by a first side and a second side. The method may further comprise bending the first side and the second side away from the spike to generate a sheath intermediate followed by generating the protective sheath from the sheath intermediate by shaping an outer surface and an inner surface of the sheath intermediate to match the contour of the fan blade leading edge.

    Abstract translation: 描述了用于制造用于风扇叶片前缘的保护套的方法。 该方法可以包括从坯料板产生预制板，其中预成型板具有扁平表面和具有侧面为第一侧和第二侧的尖端的倾斜表面。 该方法还可以包括将第一侧和第二侧弯曲远离尖峰以产生护套中间体，随后通过使护套中间体的外表面和内表面成形来匹配鞘中间体的外形 风扇叶片前缘。

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