Abstract: A brake disc configured to be connected to a vehicle axle and to be squeezed between brake pads, comprising a central disc body (30) having a first and a second side, wherein the second side faces in the opposite direction compared to the first side; a first and a second disc plate (36, 38), each disc plate having a wear surface for producing friction when a brake pad is pressed against the wear surface; wherein the disc plates are releasably secured to said first side and said second side, respectively, of said central disc body, so as to enable the first and second disc plates to be replaced by other disc plates; and an enveloping sleeve (50) releasably secured to an outer circumference of the central disc body so as to apply a radially inwardly directed pressure to the disc plates.

Abstract: A method of preventing damage to a clutch housing includes removing material such that the castellations that are adjacent to each other are separated by second distances that are greater than first distances therebetween before removing the material, where the first distances are sufficient for positioning splines of a clutch plate therein. The method further includes positioning wear inserts where the material was removed from the castellations. The wear inserts positioned with castellations that are adjacent to each other are separated by third distances that are less than the second distances between the castellations that are adjacent to each other. The third widths are sufficient for positioning the splines of the clutch plate therein. The wear inserts prevent the splines of the clutch plate from damaging the clutch housing in use.

Abstract: An apparatus for an engine component in a turbine engine. The engine component including a wall with a cooling hole having a passage extending between an inlet fluidly coupled to a cooling fluid flow and an outlet at a heated surface. The cooling hole including a layup surface defining a first angle (?) and a layback surface defining a second angle (?).

Abstract: A remanufactured pinion shaft includes a salvage member secured to a replacement member. The salvage member may be formed from a damaged pinion shaft and includes first gear teeth proximate a first axial end and a first alignment member proximate a second axial end. The replacement member includes second gear teeth proximate a first axial end and a second alignment member proximate a second axial end. The first alignment member and the second alignment member cooperate to transmit rotational motion between the first salvage member and the replacement member and/or align the salvage member relative to the replacement member.

Abstract: A method comprises inspecting a ceramic matrix composite component assembled in a gas turbine engine to determine an extent of damage to the ceramic matrix composite component, determining a repair technique to repair the damage to the ceramic matrix composite component based on the extent of damage to the ceramic matrix composite component, and repairing the ceramic matrix composite component using the repair technique.

Abstract: An airfoil for a gas turbine engine includes a substrate portion extending from an airfoil leading edge to an airfoil trailing edge portion. The airfoil trailing edge portion includes a flared portion wherein a substrate portion thickness increases along a camber line of the airfoil, and a trailing edge defined as a full constant radius extending from a pressure side of the airfoil to a suction side of the airfoil. A coating portion includes a coating applied over at least a portion of the substrate portion.

Abstract: A method of repairing a joint connecting a wind turbine blade to a rotor hub of a wind turbine, wherein the joint includes a plurality of bushings in a root end of the wind turbine blade is disclosed. The method includes extracting a selected bushing from the wind turbine blade, the extraction resulting in a bushing cavity in the wind turbine blade; reconditioning the bushing cavity in the wind turbine blade; providing a replacement insert, wherein the insert includes a replacement bushing and a cover disposed around at least a portion of the replacement bushing; positioning the replacement insert into the reconditioned bushing cavity; and securing the replacement insert to the wind turbine blade.

Abstract: A vane cluster for a gas turbine engine includes an outer diameter platform and an inner diameter platform. A plurality of vanes span from the outer diameter platform to the inner diameter platform. At least one inbound region is defined between a first vane of the plurality of vanes and a second vane of the plurality of vanes. The first vane includes a suction side facing the inbound region. Each of the vanes includes a leading edge core passage and a trailing edge core passage. A plurality of electrical discharge machined (EDM) holes are disposed within at least 0.500 inches (12.7 mm) of a leading edge of the first vane. Each of the EDM holes connect a leading edge core passage of the vane to an exterior surface of the vane.

Abstract: An airfoil for use in a turbomachine includes a pressure sidewall and a suction sidewall coupled to the pressure sidewall. The suction sidewall and the pressure sidewall define a leading edge and an opposite trailing edge. The leading edge and the trailing edge define a chord distance. The airfoil further includes a root portion, and a tip portion. The tip portion extends between the pressure sidewall and the suction sidewall such that the tip portion is substantially perpendicular to each sidewall. The tip portion includes at least one planar section and at least one oblique section that forms a recess within the tip portion. The at least one oblique section extends from the at least one planar section towards the root portion along the chord distance. The tip portion is configured to reduce airfoil wear during contact with a surrounding casing.

Abstract: A hydraulic head assembly includes a hydraulic head and an adaptor. The hydraulic head has a first bore and a pumping chamber. The adapter has a second bore. The adapter is connected to the hydraulic head such that the first and second bores are disposed coaxially to form a pumping element bore. A pumping element is disposed within the first and second bores for pressurizing fuel in the pumping chamber. A first seal is formed between the pumping element and the hydraulic head; and a second seal is formed between the pumping element and the adapter.

Abstract: An airfoil for a compressor blade of a gas turbine engine has a chord between a leading edge and a trailing edge and a span between a root and a tip. The airfoil can further include a reduction in local chord from about 75% span to the tip for about a 5% reduction in local solidity. The airfoil can have decreasing sweep angles for the leading edge and the trailing edge from 50% span to the tip and can have decreasing leading and trailing edge dihedral angles from 50% span to the tip.

Abstract: In a method for increasing the strength of a component subjected to torsional and flexural stress, in particular of a crankshaft, in a first step essentially the entire component is provided with a nitriding layer. In a second step, the nitriding layer is at least partially removed in at least one highly stressed region of the component by means of cutting machining, and, in a third step, the at least one highly stressed component region freed of the nitriding layer is mechanically strain-hardened.

Abstract: A method of the present disclosure includes of repairing a core stiffened structure with structural foam. Another method includes splicing core members together using structural foam. Another method includes joining a core member to a structure using structural foam. Another method includes using structural foam to stabilize a core member during a machining process. Another method includes stabilizing a core member with structural foam to prevent the core member from crushing in autoclave pressure. The present disclosure further includes a core stiffened structure have a core member with structural foam therein.

Abstract: In a method for machining grooves, especially fir-tree grooves (13), which are provided for accommodating blades (19), on a rotor (10) of a turbine, especially a low-pressure steam turbine, great simplification and high flexibility is achieved by the fact that in the grooves, or fir-tree grooves (13), material is removed by a program-controlled milling device, wherein the milling device is inserted into the groove, or fir-tree groove (13), with a milling tool (20) which is guided along the places in the groove, or fir-tree groove (13), which are to be machined, by a milling tool positioning device, which is freely movable in space.

Abstract: A process of repairing a component, a repair tool for a component, and a component are disclosed. The process includes removing material from a region of the component. The removing forms a through-cut in the component, forms a partial-frustoconical geometry in the component, forms a substantially partial-frustoconical geometry in the component, forms a partial-spherical geometry in the component, forms a substantially partial-spherical geometry in the component, forms a partial-elliptical geometry in the component, forms a substantially partial-elliptical geometry in the component, forms a partial-cylindrical geometry in the component, forms a substantially partial-cylindrical geometry in the component, is in a direction substantially perpendicular to a surface of the component, is in a direction substantially inclined with respect to the surface of the component, or a combination thereof. The repair tool includes a securing mechanism and a cutting portion for removing a region.

Abstract: Disks stuck together in a stack are separated by placing the disks on a shaft of a vibratory apparatus and vibrating the shaft to vibrate the disks by contact of the disks with the vibrating shaft to separate them and also constrain the disks with the shaft as the disks are vibrated.

Abstract: A method is provided for destroying a blind fastener joining at least two parts. The blind fastener includes, but is not limited to a body situated in the holes provided in the joined parts, with a head at each end thereof, and portions of which protrude above the level of the holes. The method also includes, but is not limited to withdrawing the accessible head of the fastener, and creating a hole that passes through the fastener. An insertion device is configured to restrain the remainder of the fastener in the hole, which has an elongated body having a diameter smaller than or equal to that of the hole and an expandable head at one end thereof The insertion device for restraining the remainder of the fastener being immobilised or capable of only limited movement relative to the joined parts, and expelling the remainder of the fastener from the holes.

Abstract: A method for forming a flush architectural wooden door using at least one post-consumer material includes collecting a previously-used door from a collection site. The previously-used door includes a core having a first major surface, a second major surface opposite to the first major surface, and a perimeter extending around the opposing major surfaces. The core is extracted from the previously-used door. Rails and styles are applied to a perimeter of the extracted core. A first skin is applied over the first major surface of the extracted core and applied rails and styles. The extracted core, rails, styles, and first skin have a collective weight. The extracted core forms over half of that collective weight.

Abstract: Embodiments of the present invention provide method and apparatus of restoring probes attached to the manipulator in a control environment (e.g. vacuum chamber of an focus ion beam) without a need to open the vacuum chamber. Another embodiment of the present invention teaches construction and application of various shapes of nanoforks from a nanoneedles array inside a FIB vacuum chamber. In another embodiment, the present invention teaches edition and correction of completed and oxide-coated circuit boards by re-nano-wiring using nanoneedles of a nanoneedles array (as nanowire supply), contained in the same controlled space. In this embodiment, individual nanoneedles in a nanoneedle array are manipulated by a manipulator and placed in such a way to make electrical contact between the desired points.

Abstract: A process of preparing a turbine rotor wheel, a repair tool for machining a turbine rotor wheel, and a turbine rotor wheel are disclosed. The process includes providing the turbine rotor wheel, the turbine rotor wheel having a dovetail slot, a cooling slot, and a dovetail acute corner formed by the dovetail slot and the cooling slot and removing a stress region from the dovetail acute corner. The repair tool permits removal of strained material while also reducing the operating stress of the feature. The turbine rotor wheel includes a machined portion resulting in lower stress for the turbine rotor wheel.

Abstract: There is provided a method of repairing a probe board, the method including: preparing a plurality of first via electrodes filled with a first filling material in a board body formed as a ceramic sintered body; forming a via hole for an open via electrode among the plurality of first via electrodes; filling the via hole with a second filling material having a lower sintering temperature than that of the first filling material; and forming a second via electrode by sintering the second filling material. The open via repair according to the present invention improves the manufacturing yield of the board and reduces the manufacturing costs thereof.

Abstract: An example method of maintaining a serviceable component of a gas turbine engine includes selecting a used component, using a fluid to move an abrasive against a surface of the used component, and removing material from the used component using the abrasive. In one example, the method moves the abrasive against the surface of the used component when the used component is installed within the gas turbine engine.

Abstract: One or more crack inhibitors can be installed to improve fatigue performance by producing stress states that prevent or inhibit crack initiation. Crack inhibitors can also prevent or retard crack growth. A mandrel can be used to radially expand the crack inhibitors to both induce compressive residual stresses and to form an interference fit between the crack inhibitor and a workpiece. The mandrel can be removed from the installed crack inhibitor, which is left in the workpiece to ensure proper stress states are maintained.

Abstract: A method is provided for reconditioning a turbomachine rotor, equipped with circumferentially extending grooves for accommodating blades retained in the grooves at a distance from each other by spacers. The method includes removing the blades and spacers from the grooves and hollowing out the exposed grooves, simultaneously widening the grooves to remove damage-inflicted material. At least one circumferentially extending lateral groove is introduced for accommodating a filler piece in the grooves to fill a gap between blades and hollowed-out rotor grooves. New spacers are provided which are matched to the hollowed-out grooves and have recesses which are matched to the introduced lateral grooves. Filler pieces are provided for inserting into the circumferentially extending lateral grooves and recesses of the new spacers. The blades and new spacers are inserted into the hollowed-out rotor grooves and corresponding filler pieces are inserted into the lateral grooves and matched recesses of the new spacers.

Abstract: A turbine housing (430) includes a support housing (440) with an annular shape. The support housing (432) includes an outer surface (433) and an inner surface (434). The inner surface (434) is located radially inward from the outer surface (433). A plurality of cooling holes (431) extols through the support housing(440) from the outer surface (433) to the inner surface (434). The cooling holes (431) include a stadium shape. The stadium shape includes a rectangle with a top and bottom of a first length and ends capped with semicircles with a radius of a second length. The cooling holes (431) are disposed at an angle (98) from thirty to sixty degrees. The angle (98) is between a line (96) projected to the outer surface (433) from an axis of the turbine housing (430) and a line (97) extending through a center of each cooling hole (431) parallel to the first length.

Abstract: A retrofit system for providing a load indicator on a foundation bolt. The system includes a fastener having a fastener head, gauge length and central fastener bore in the gauge length and head. A datum rod is anchored in the central bore with a free datum rod being moveable longitudinally relative to the fastener head during elongation of the fastener gauge length. An internally threaded fastener portion below the central fastener bore is configured to thread over a foundation bolt. A compression sleeve positioned over the foundation bolt is configured to receive the load indicating fastener therein and to bear the compressive forces of the fastening. Elongation of the gauge length as the fastener is tightened onto the stud is manifest as displacement of the datum rod end, which displacement is measured to provide an indication of fastener loading.

Abstract: A disassembled battery and methods for disassembling the battery are provided. Holes are formed in an enclosure of the battery and a fluid is injected into the battery to inactivate an electrolyte inside the battery. The enclosure of the battery is then cut to define strips in the enclosure that can be peeled back to expose a core inside the battery. The core can be extracted and recycled.

Abstract: A method for producing a coated turbine blade, with which the frequency property thereof can be particularly easily adjusted to the required boundary conditions is provided. Recesses are introduced into a blade tip of the blade leaf of the turbine blade after coating of turbine blade. In one aspect a plurality of bores are made which are distributed along the blade leaf center line.

Abstract: An electronic component repair method for removing an electronic component soldered on a substrate, the method includes: mounting a heat transfer plate on the electronic component to be removed, the heat transfer plate being formed by bonding a plurality of heat transfer members via a heat insulating member, heating the heat transfer plate mounted on the electronic component by a heating unit, the heating unit heating individually each of the heat transfer members by different heat amount; and removing the electronic component from the substrate after the heating.

Abstract: A method for dismantling a furnace having a multilayered refractory structure including: a furnace shell; a containing layer that is formed of a containing refractory that contains asbestos, and covers the inner side of the furnace shell; and a multilayered non-containing layer that is formed of a non-containing refractory that contains no asbestos, and covers the inner side of the containing layer, the method includes: a primary dismantling process; and a secondary dismantling process conducted after the primary dismantling process. In the primary dismantling process, the non-containing layer is dismantled from a furnace-core side thereof but the containing layer and at least one layer of the layers forming the non-containing layer, which is in contact with the containing layer, are left as a remnant. In the secondary dismantling process, the remnant is dismantled while asbestos measures are implemented.

Abstract: An apparatus and respective method for replacing a damaged center console hinge system. Initially, a portion of each of the original hinges is removed, leaving a portion of each base to form a respective registration section. A first hinge replacement member is placed over the first registration OEM hinge section. The first replacement hinge pin is inserted into a hinge receptacle of the OEM armrest cover. A pin of a second replacement hinge member is subsequently inserted into the opposing hinge hole in the OEM armrest cover and the replacement member is placed over the second registration OEM hinge section. Threaded fasteners, adhesive, or any other mechanical fastener are then used to secure the replacement hinge assembly to the center console.

Abstract: A machining method for machining a superficial portion of a laminate using machine tool having a depth limiter which restricts a maximum depth of the machine tool. A guide frame having an inner guide contour restricts a maximum dimension of the superficial portion, and is secured over the superficial portion. The superficial portion is machined while the machine tool is guided by the guide contour. From another point of view, a machining apparatus for machining a superficial portion of a material is provided. The machining apparatus comprises a guide frame, an inner guide contour for guiding a machine tool, an attachment member for securing the guide frame to an attachment member, adjacent to the superficial portion, of the material.

Abstract: The present invention relates to a method for surface treatment of a wind turbine rotor blade (1) comprising a leading edge and a trailing edge separating substantially opposing first and second surfaces of said rotor blade. The method comprises the steps of providing a wind turbine rotor blade, supporting said rotor blade at least at a root end and at a distal position along a longitudinal axis of the rotor blade and providing moveably arranged first and second surface treatment devices (24, 25) adapted to provide surface treatment of the first and second surfaces of the rotor blade, respectively, wherein the first and second surface treatment devices are moved in opposite directions and towards the leading and trailing edges, respectively, during surface treatment of the first and second surfaces of the rotor blade.

Abstract: There is disclosed a method for reconditioning an intermediate transfer member and the reconditioned intermediate transfer member. The method comprises stripping off an outer layer of the intermediate transfer member. A mixture of a polymer, conductive particles and a solvent is coated over the outer surface of a seamless intermediate transfer member. The mixture is heated to form a layer on the outer surface of the intermediate transfer belt. An apparatus for reconditioning an intermediate transfer member is also described.

Abstract: A method of repairing a stator assembly of a gas turbine engine includes removing a worn surface of the stator assembly to provide a revealed area, and securing additional material to the stator assembly utilizing gas metal arc welding.

Abstract: Grinding a machine component such as a valve component during remanufacturing, includes seating one end of the valve component in a chuck of the grinding apparatus, then contacting a steady rest with a reference surface on an outer diameter of the valve component while rotating the valve component, and then reseating the one end of the valve component in the chuck. A first valve surface on an outer diameter of the valve component is ground while contacting the steady rest with the reference surface, then a second, different valve surface on the outer diameter of the valve component is ground also while contacting the steady rest with the reference surface. The valve component is then reassembled with a hydraulically actuated device for service therein.

Abstract: A method of rebuilding a solenoid for use in automatic transmissions is disclosed. In one embodiment, an improvement over the original equipment design allows for increased durability of the solenoid. In another embodiment, a lower cost method is disclosed for reusing an expensive component. In either case, various components within the solenoid are reused, reconditioned or replaced. A preferred process for disassembling the solenoid is also disclosed.

Abstract: A cutting tool apparatus, methods, and kit for removing damaged surfaces, more specifically, a portable cutting tool for removing cracked inner wing spars from hard to access surfaces.

Abstract: The invention relates to a device for finishworking of a forming tool for an auto body sheet metal part in which, in a first working step for identifying a surface region of a tool surface to be remachined, a sheet metal part which has been coated with a marking paint can be formed in a pressing process by means of the tool and, using the color impression of the sheet metal part on the tool surface, the surface region which is to be remachined is acquired, and then in a second working step the surface region to be remachined can be remachined by a corresponding surface treatment. According to the invention, the device has a machining apparatus which electronically acquires the tool surface with the color impression and, depending on the intensity of the color impression, determines the location and/or dimension of the surface area to be remachined and remachines it accordingly.

Abstract: A method and apparatus are present for removing a blind fastener from a structure. A first hole is drilled in a guide located around a center of a head of a core bolt in a body of the blind fastener to form a pilot hole. A second hole is drilled in the pilot hole in the head of the core bolt. The head of the core bolt is separated from the shaft of the core bolt. The core bolt is separated from the body. The core bolt is moved out of the body after the core bolt has been separated from the body. A head of the body is separated from a shaft of the body. The shaft of the body is moved out of the structure.

Abstract: A system and method for refurbishing forged components. The system includes an identification subsystem for identifying a forged component for refurbishment, a removal subsystem for removing portions of the forged component, and a rebuilding subsystem for rebuilding the forged component, the rebuilding subsystem including an assembly for adding a non-molten material to the forged component.

Abstract: A method of repairing a seal wire groove is disclosed, the groove forming an annular structure having an outer surface and an inner surface and defining an original profile when new, comprising the steps of: removing a less-than-annular portion of the original profile of the groove to remove damaged portions of at least one of the inner and outer surfaces thereby forming a void; adding new material to the void; and shaping the new material to form a new profile of the groove.

Abstract: An apparatus and method adapted to enhance the structural performance of a desired connection and provide a readily perceivable indication of predetermined limitations having being reached prior to actual failure of a connection. A method for enhancing structural performance of a desired structure by preventing fracture propagation.

Abstract: A method for repairing a crushing device or other device configured to comminute material includes the steps of removing at least one first insert from a portion of a crushing body such that at least one opening is formed in the portion of the crushing body, positioning at least one second insert in the at least one opening formed by the removing of the at least one first insert, positioning a force application mechanism adjacent to the at least one second insert and the portion of the crushing body, and actuating the force application mechanism to deform the portion of the crushing body to attach the at least one second insert to the portion of the crushing body. The one or more first inserts may be damaged and the one or more second inserts may be used to replace the one or more damaged first inserts. The force application mechanism is preferably explosive material. A method of forming a wearable surface is also disclosed.

Abstract: A method for removing a crack in an electromechanical rotor, including: forming a plurality of slots on a periphery of a core portion of an electromechanical rotor along an axial direction thereof; inserting coils into the slots, respectively; forming a plurality of wedges for maintaining the coils in the slots, respectively; and forming a cut hole at at least a part of the core portion from an outer surface of the core portion toward the side of a center axis thereof so as to contain a crack along a circumferential direction thereof.

Abstract: The method according to the invention for reprocessing the worn surface of grinding rollers (2) of a material bed roller mill comprises the following method steps: a. providing a mobile processing station (6) which is arranged in a container (8) and comprises at least one machine tool (9) and a drive (10) for rotating the grinding roller, b. removing the complete roller unit (A) containing the grinding roller to be reprocessed from the material bed roller mill, c. positioning the complete roller unit in front on the mobile processing station and coupling the drive to the shaft (1) of the grinding roller, d. producing a new cylindrical surface (2h) using the machine tool, and e. producing a new wear protection comprising new profiled bodies (2c) and/or build-up welding.

Abstract: A shim is provided for repairing damage in a surface of a mechanical piece at or near an outer edge of a bore in the surface. The damage may penetrate a given distance within the surface and the bore is in close proximity to an attachment hole. The shim has a body having a first side and a second side and a thickness therebetween that is equal to or greater than the depth of the damage penetrating the given distance and contiguous to the attachment opening, wherein the body fits within an area machined into an outer surface surrounding the bore.

Abstract: A method of adding material to a nickel-based superalloy component, such as a gas turbine rotor disk, without damaging the underlying material and without creating an unacceptable level of cracking. The method is advantageously applied in the repair of Alloy 706 turbine rotors having experienced operating failures in the steeple region of the disk. Once the damaged material is removed, replacement nickel-based superalloy material is added using a welding process that protects both the underlying material and the replacement material. The replacement material may be added by welding, with the preheat temperature maintained no lower than 100° C. below the aging temperature of the deposited alloy and with the interpass temperature maintained below the solution annealing temperature of the alloy. Alternatively, the replacement material may be preformed and welded to the original material using a friction welding process.

Abstract: Apparatus and method for extending the life of a booster valve in an automatic transmission. The booster valve commonly resides in the pump stator body and is modulated by reverse oil pressure and pressure control solenoid pressure signals. Pressure signals from the reverse oil pressure and the pressure control solenoid force a booster valve piston towards a pressure regulator valve piston also generally residing in the pump stator body. The booster valve piston slides inside a booster valve sleeve, and over time, the booster valve sleeve wears and the performance of the booster valve degrades or fails. The present invention replaces an original inner booster valve spring with a longer (or in some cases shorter) replacement booster valve spring to shift the operating range of the booster valve piston to an unworn portion of the booster valve sleeve to extend the life of the booster valve.

Abstract: A transmission system and method of repair having a transmission servo rod received within a transmission housing bore, the rod having an aperture disposed along an exterior surface of the rod, configured to receive transmission fluid from a port within the transmission housing bore, a first recessed groove in the exterior surface of the rod disposed above the aperture; a second recessed groove in the exterior surface of the rod disposed below the aperture; and a first and second resilient sealing member received within the first and second recessed grooves, respectively, the resilient sealing members configured to engage an inner surface of the transmission housing bore.