Patent application number | Description | Published |
20090241339 | METHOD FOR REPAIRING AN AIRFOIL - An example method of repairing an airfoil includes the steps of securing additional material to a worn airfoil and limiting movement of the additional material with a guide. | 10-01-2009 |
20090250441 | Bolt hole repair technique - A method of hole defect repair includes removing one or more defects at or near a desired hole in a part by removing a portion of the part proximate the desired hole in a series of chain link patterns, and welding a filler material to the part after removing the chain link pattern portion of the part. | 10-08-2009 |
20100032415 | Repair Methods Involving Conductive Heat Resistance Welding - Repair methods involving conductive heat resistance welding includes repairing a crack of a gas turbine engine component using a conductive heat resistance welding technique and a welding technique other than conductive heat resistance welding. | 02-11-2010 |
20100243614 | METHOD OF REPAIRING HOLES USING CONDUCTIVE HEAT RESISTANCE WELDING - A method of repairing a hole in a work piece includes mechanically constraining donor plates against a work piece. Constraint plates keep donor plates flush against the work piece during conductive heat resistance welding. By constraining the donor plates, the molten mixture produced by conductive heat resistance welding cannot escape the hole and a weldment substantially free of voids is formed. | 09-30-2010 |
20110138624 | CONSUMABLE COLLAR FOR LINEAR FRICTION WELDING OF BLADE REPLACEMENT FOR DAMAGED INTEGRALLY BLADED ROTORS - A method of repairing an integrally bladed rotor includes the steps of placing a support collar around at least a leading and trailing edge portions of the blade stub, and performing linear friction welding to add a replacement airfoil to the blade stub. The linear friction welding is generally along a direction between the leading and trailing edges. In addition, the support collar leading and trailing edge portions are connected together. | 06-16-2011 |
20110138625 | REPAIR OF INTEGRALLY BLADED ROTORS - A method is provided for repairing a damaged rotor blade on an integrally bladed rotor by removing a damaged portion of a damaged blade leaving a blade stub extending outwardly from the disk and performing a linear friction welding operation to attach a replacement blade segment to the blade stub. The rotor may be disposed operation using a linear friction welding apparatus. The method includes disposing a support collar about the blade stub and securing the support collar to the linear friction welding apparatus prior to a commencement of the bonding operation. A lower surface of the support collar is contoured to mate with a portion of an outer circumference surface of the rotor disk. | 06-16-2011 |
20120099998 | SUPPORT COLLAR GEOMETRY FOR LINEAR FRICTION WELDING - An example method of attaching an airfoil for an integrally bladed rotor includes 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 the installed position. The method performs linear friction welding to add a replacement airfoil to the airfoil stub. | 04-26-2012 |
20120205348 | SUPPORT STRUCTURE FOR LINEAR FRICTION WELDING - A method and apparatus for fixturing an airfoil stub during linear friction welding are described. Critical clamping support structures are manufactured by a direct digital manufacturing process such as direct metal laser sintering to minimize time and expense of the process. | 08-16-2012 |
20130022339 | LOCAL HEAT TREATMENT OF IBR BLADE USING INFRARED HEATING - A device and method for locally heat treating at least one airfoil in an integrally bladed rotor device. A pair of IR heat sources are positioned to direct IR heat rays in the direction where local heat treatment is required. A pair of parabolic mirrors are positioned to direct the IR heat rays on to the metal component. The heat treating is useful after welding the airfoil on to the rotor device. | 01-24-2013 |
20130266298 | LOCAL HEAT TREATMENT OF IBR BLADE USING INFRARED HEATING - A device and method for locally heat treating at least one airfoil in an integrally bladed rotor device. A pair of IR heat sources are positioned to direct IR heat rays in the direction where local heat treatment is required. A pair of parabolic mirrors are positioned to direct the IR heat rays on to the metal component. The heat treating is useful after welding the airfoil on to the rotor device. | 10-10-2013 |