Abstract:
A method of improving a structure of a component adjacent a feature is provided including removing a portion of the structure including at least one area where damage of corrosion has occurred or is likely to occur to expose a surface of the structure. A masking plug is installed into the feature such that a base of the masking plug is coupled to a first portion of the feature and a head of the masking plug is arranged adjacent a second portion of the feature. A structural deposit is formed on the surface and is integral with the structure. Excess material of the structural deposit and a portion of the head of the masking plug is removed. The second portion of the feature is reformed and the masking plug is removed from the feature.
Abstract:
One exemplary embodiment of this disclosure relates to a method for coating a substrate. The method includes heating a substrate, depositing a coating on the heated substrate, and forming an expansion slit in the coating.
Abstract:
The present invention relates to a turbine assembly (10, 10a-d) comprising a basically hollow aerofoil (12), having at least a cavity (14) with an inner wall (16) and having at least an aperture (18) providing access to the cavity (14), and at least a first impingement device (20, 20a-d) arrangeable within the cavity (14). According the invention the at least first impingement device (20, 20a-d) is self-locking, resilient and preloadable and has at least one locking element (22, 22') to lock the at least first impingement device (20, 20a-d) in place in the cavity (14) via a force fit between the at least one locking element (22, 22') and the inner wall (16) of the cavity (14) wherein the locking element (22, 22') of the at least first impingement device (20, 20a-d) is embodied as a protrusion (26, 26') extending in an assembled state of the at least first impingement device (20, 20a-d) in the cavity (14) basically perpendicular to a surface (28) of a side wall (30, 30') of the at least first impingement device (20, 20a-d) in a direction towards the inner wall (16).
Abstract:
Ein Prüfsystem (1) zur Überprüfung der Beschichtung und von offenen Kühlluftbohrungen von Turbinenschaufeln (20) umfasst eine Dreh-Schwenkvorrichtung (8) zur Positionierung der Turbinenschaufel (20), eine an der Dreh-Schwenkvorrichtung (8) angeordnete drehbare Luftdurchführung (21) zum Einbringen von Luft in die Turbinenschaufel (20) und eine Positioniervorrichtung (28) für eine Infrarotkamera (29) mit zwei Freiheitsgraden.
Abstract:
Durch das Einbringen von festen aber lösbaren Pins (4' 4' ') in ein Bauteil ( 1, 120, 130, 155) kann durch Vergleichsmessung vor und nach dem Beschichten die Lage von Bohrachsen von Löchern (13'.13' ') genau ermittelt werden.
Abstract:
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Glättung der Oberfläche (24) einer Gasturbinenschaufel (20). Eine metallische Korrosionsschutzschicht (32) wird mittels eines Trockeneisstrahles (14) geglättet, wodurch Kontaminationen der Oberfläche (24) vermieden und Kostenvorteile erzielt werden.
Abstract:
A process is provided for laser drilling (3) to remove coating material obstructing cooling holes (1) of a gas turbine component by utilizing a CNC component program which is preprogrammed with the general location of the cooling holes (1) of a component to move a machine vision system (7, 6, 8) and component relative to each other to each cooling hole (1) location for a series of cooling holes (1), determining the actual location for each cooling hole (1) and storing in the memory of the CNC or a data storage device the actual locations for the cooling holes (1) for the series of cooling holes (1), followed by laser drilling (3) based on the actual location of the cooling holes (1) stored in the memory of the CNC or the data storage device to remove the coating material obstructing the cooling holes (1) for the series of cooling holes (1).
Abstract:
A method of processing an orifice in a structure to attain a precise predetermined flow resistance through said orifice. Undersized orifices (10, 11) are machined by either electrochemical, chemical or electric discharge machining, while oversized orifices (10, 11) are electroplated, electroless plated or vapor deposition coated, such that the processing fluid, i.e. the electrolyte, corrosive fluid, dielectric or carrier gas as used in the machining, plating or coating process is passed through said orifice during said processing at a predetermined fixed pressure while measuring the dynamic flow resistance of said processing fluid through said orifice until said dynamic flow resistance is equal to that desired.
Abstract:
The present invention and the embodiments thereof relate to a method of coating a component with holes. The method includes generating a hole in the component. Thereafter, at least a portion of a surface of the component is coated with a coating material. Subsequently, at least a portion of remaining coating material within the hole is removed using a blasting process. Additionally, a plug is inserted into the hole, wherein at least a portion of the plug has a diameter less than the diameter of the hole. The plug is inserted in the hole before coating the surface with the coating material. The plug is removed from the hole after the application of the coating layer to reopen the hole.