公开(公告)号：SG185868A1

公开(公告)日：2012-12-28

申请号：SG2012008645

申请日：2012-02-07

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HERBERT A CHIN ,  ROBERT P SCHAEFER ,  ANDREW L HAYNES ,  DAVID G ALEXANDER ,  SONIA A MARTINEZ ,  WANGEN LIN

Abstract: WELDING Ti-6246 INTEGRALLY BLADED ROTOR AIRFOILSA method is disclosed for welding a first metal to a Ti-6246 alloy airfoil. The method consists of depositing weld metal by fusion welding and reshaping the airfoil to predetermined dimensions. A post weld heat treatment is applied to relieve residual stresses. Surface treatment such as laser shock peening introduces residual surface compressive stresses to enhance the mechanical integrity of the airfoil.Fig. 1

公开(公告)号：SG180088A1

公开(公告)日：2012-05-30

申请号：SG2011072790

申请日：2011-10-05

Applicant: UNITED TECHNOLOGIES CORP

Inventor： JAMES J MOOR ,  HERBERT A CHIN ,  GREG CZELADKO ,  GENE A DANKO ,  ANDREW L HAYNES ,  WANGEN LIN ,  VINCENT NEVINS ,  ROBERT P SCHAEFER ,  EBERHARDT PRIVITZER

Abstract: An example method of attaching an airfoil for an integrally bladed rotorincludes placing a support collar in an installed position around at least a leading edge and trailing edge of an airfoil stub to be repaired in an integrally bladed rotor. The support collar and the airfoil stub together have a midline that is positioned between opposing, laterally outer surfaces of the airfoil stub when the support collar is in theinstalled position. The method performs linear friction welding to add a replacement airfoil to the airfoil stub.Figure 1