摘要:
A method of inspecting an article includes: applying an organic liquid substance over at least a portion of the article to be inspected so as to form a surface layer thereon, wherein said surface layer is luminescent; irradiating the article with the surface layer thereon; and scanning the article to determine its shape.
摘要:
A spray nozzle 10 for a laser deposition apparatus comprises an array of nozzle apertures 16 arranged side-by-side, and a powder supply chamber 18 in fluid communication with the nozzle apertures 16. In use the powder supply chamber 18 supplies powder to the nozzle apertures 16 under pressure so as to cause a wide powder stream to be discharged from the array of nozzle apertures 16. When used with a laser deposition apparatus 100, a relatively wide coating of a uniform thickness can be deposited.
摘要:
A method of supporting a tool (106) in an assembled apparatus (10) comprises the steps of (a) inserting a support structure (60) through a first aperture (52,56) in a casing (50,54) of the apparatus (10), a first end (62) of the support structure (60) being outside the casing (50,54) and a second end (64) of the support structure (60) being inside the casing (50,54), (b) securing the first end (60) of the support structure (60) to the casing (50,54), (c) arranging a first portion (78) of the support structure (60) to abut at least one surface within the casing (50,54), (d) inserting a tool (106) through the first aperture (52,54) or a second aperture in the casing (50,54), and (e) securing the tool (106) to a second portion (102) of the support structure (60) within the casing (50,54).
摘要:
A method of inspecting a hole defined by a component situated within an engine, the engine including a chamber configured to receive fluid from a fluid supply, wherein the component is in flow communication with the fluid supply via the chamber, the method includes the steps of: (i) delivering a test fluid via the chamber to the component to induce flow of the test fluid through the hole; (ii) deploying a sensor panel adjacent to the component in a path of test fluid issuing from the hole, the sensor panel being sensitive to impingement of the test fluid; and (iii) assessing a condition of the hole depending on a response of the sensor panel at a location corresponding to the hole.
摘要:
A particle damper is formed using a solid freeform manufacturing technique. A filler provides support for the closing wall of the cavity as it is formed. Apertures allow at least a portion of the filler to be removed. A particle fill of between 90 and 95% is achieved either by removing sufficient filler to reach this fill or removing excess filler and re-filling with damping particles.
摘要:
An atmospheric shield for isolating a component from an external atmosphere is provided. The atmospheric shield includes an envelope and a base carrying a continuous channel. The base and the envelope are arranged to define an enclosure within which the component to be isolated is located, and such that a portion of the envelope extends within the continuous channel. A seal is provided within the continuous channel to seal between the envelope and the base.
摘要:
A method of forming a component from solid freeform fabrication comprising the step of building an integral support around the component during manufacture thereof. The stiffness the support provides to the component is selected to minimize deformation of the component either during the manufacture of the component or during a subsequent heat treatment process.
摘要:
A surface treatment device includes an enclosure which has an opening through which the leading edge of an aerofoil passes. A sealing element is provided on the enclosure to seal the device to the surfaces of the aerofoil. An abrasive is located within the enclosure and two fluid openings are also provided through which a chemical accelerant can be pumped. In operation the enclosure is oscillated relative to the component so that material is abraded. Whilst the enclosure is oscillated a chemical accelerant is simultaneously pumped through it. The device allows for the local application of a surface treatment on a component.
摘要:
A method of replacing a integrally bladed rotor section in a one-piece drum rotor, the method comprising removing the integrally bladed rotor section, replacing the integrally bladed rotor section with a replacement rotor section, and joining the replacement rotor section to the drum rotor by diffusion bonding under an axial contact pressure exerted between one or more respective pairs of bonding surfaces on the new rotor section and the drum rotor.
摘要:
A turbomachine blade comprising a root portion and an aerofoil portion, the aerofoil portion having a leading edge, a trailing edge, a concave metal wall portion extending from the leading edge to the trailing edge and a convex metal wall portion extending from the leading edge to the trailing edge, the concave metal wall portion and the convex metal wall portion forming a continuous integral metal wall, the aerofoil portion having a hollow interior defined by at least one internal surface, the hollow interior of the aerofoil portion being at least partially filled with a vibration damping material that is separated from the metal wall portions by a thermally insulating material.