A method of restoring a section of a component having a honeycomb bonded to a skin includes the steps of separating a first honeycomb from the skin, wherein the honeycomb includes an uneven surface. At least a portion of the uneven surface is removed to form a bonding surface on the skin. A conformable layer is bonded to the uneven surface. Then a replacement honeycomb is then bonded to the conformable layer.
William Bogue - Hebron CT, US John J. Golias - Marlborough CT, US
Assignee:
United Technologies Corporation - Hartford CT
International Classification:
F03B 11/02
US Classification:
415191, 415200, 4152093, 4152101, 29888022
Abstract:
A replacement fan exit guide vane assembly for installation between an inner case and an outer case of a gas turbine engine includes an airfoil structure having an outer end and an inner end, a wedge structure connected to the outer end of the airfoil structure, a base plate positioned between the outer end of the airfoil structure and the outer case, a conformable material, and a slip collar having an opening therethrough and a recess formed along the opening. The airfoil structure extends through the opening, and the recess accepts the wedge structure to create an interference fit between the slip collar and the base plate. The conformable material is disposed along the opening and the recess in the slip collar, and also along the baseplate, in order to provide dampening relative to the airfoil structure and the wedge structure.
Metallic Doubler Repair Of Composite Arcuate Flanges
An assembly includes a composite flange, an insert, an adhesive and a support. The composite flange has at least one damaged aperture. The insert is positioned in the damaged aperture and extends therefrom to provide compressive load transfer through the composite flange. The adhesive is positioned directly on at least a portion of the composite flange proximate the damaged aperture. The support is positioned over the adhesive and contacts the insert.
Non-Invasive Thermal Management Processes For Restorating Metallic Details Bonded To Substrates
William Bogue - Hebron CT, US John M. Robertson - Andover CT, US Gary Shubert - East Hampton CT, US
Assignee:
United Technologies Corporation - Hartford CT
International Classification:
B23P 6/00
US Classification:
427142
Abstract:
A thermal management process for enabling the restoration of a surface of a metallic detail in the presence of at least one bonding material, comprising preparing at least one damaged area on a metallic detail; disposing at least one thermal management component upon a bonding material or a surface area proximate to the bonding material to which the metallic detail is joined; masking at least the surface area and the bonding material with a masking agent; and dimensionally restoring a surface of the metallic detail disposed on the article at a processing temperature lower than a temperature which would degrade the bonding material, the substrate, or the bondment interface therebetween.
A method and system for repairing a damaged hole includes a deformable rod and a fabric wrapped around a middle portion of the rod. A first portion of the rod is inserted into the damaged hole. The rod is stretched to align the middle portion of the rod and the fabric with an inside circumference of the hole. The rod is then relaxed to compress the fabric against the inside circumference of the hole.
Curved Variable Pitch Wedge Retention In Vane Outer Base
William Bogue - Hebron CT, US Bruce A. McCollum - Vernon CT, US
Assignee:
United Technologies Corporation - Hartford CT
International Classification:
F01D 5/30
US Classification:
415191, 4152093, 4152094, 416219 R, 416241 A, 2988802
Abstract:
A method for repairing or replacing a mechanically retained vane is provided. The method comprises the steps of forming an oversized cavity in an outer base, inserting a flared end of a vane in the oversized cavity, and inserting a wedge for mechanically retaining the flared end of the vane in the oversized cavity. The wedge has a first surface with a constant pitch angle to match the outer base cavity and a second surface with a variable pitch angle to match the vane tip dovetail.
Rebonding A Metallized Fabric To An Underlying Layer
A method and system for repairing an insulation blanket having a metallized fabric that becomes disbanded from an underlying layer of the insulation blanket. The method includes cutting a first slit in the metallized fabric near a disbanded portion of the fabric, inserting a repair material through the first slit such that the repair material is between the disbanded portion of the fabric and the underlying layer, and adhering the disbonded fabric and the underlying layer to the repair material to restore the functionality of the metallized fabric.
Repair Of Composite Sandwich Structures With Uneven Bond Surfaces
A method of restoring a section of a component having a honeycomb bonded to a skin includes the steps of separating a first honeycomb from the skin, wherein the honeycomb includes an uneven surface. At least a portion of the uneven surface is removed to form a bonding surface on the skin. A conformable layer is bonded to the uneven surface. Then a replacement honeycomb is then bonded to the conformable layer.
Jen Allensworth, Bruce Little, Angie Meers, Jeff Digman, Emily Anderson, Linda Tripodi, Shelly Hopkins, John Wallis, April Donovan, Amos Smith, Frank Niemeyer