Rolls-royce Deutschland Ltd & Co. Kg

Other

Rolls-royce Corporation

Siemens Aktiengesellschaft

Thomas Haubold

Wolfram Beele

Ulrich Bast

Peter Greil

Goetz G Feldmann

Fritz Aldinger

Karl Kempter

Michael Hoffmann

Beate Heimberg

Axel Endriss

Chu-Wan Hong

Hans J Seifert

Harsh Gupta

Wolfgang Hennig

Chow Cher Wong

Leping Zhu

Senthil Kumar Anantharajan

Arun Prasanth Nagalingam

Cheng Cheh Tan

Claudia Berkenhoff

Paul Barrowman

Martin Spallek

Abhay Gopinath

Andreas Kohns

A method for modifying the mechanical and surface properties of a component. The method involves: removably attaching a component to at least one component support that is located within a vibratory trough of a component treatment apparatus, the at least one component support being a support shaft upon which the component is removably mountable within the vibratory trough; supplying the vibratory trough with treatment media; moving the component support or the vibratory trough so that the component is immersed into the treatment media; vibrating the vibratory trough to provide a substantially uniform surface treatment of the component, the vibratory trough being movable by at least one trough vibrating mechanism whose actuation is controlled by a controller in response to signals received from at least one sensor located on or within the vibratory trough; removing the component from the treatment media; and detaching the component from the component support.

Component treatment method and apparatus

A method and apparatus for vibro-treating an object. The method includes the steps of controlling a relative displacement between a vibro-treating media and a surface area of the object to provide a vibro-treating effect; and, controlling movement of the object relative to a surface of the vibro-treating media while controlling relative displacement between the vibro-treating media and the surface area of the object, according to one or more pre-determined conditions, to provide a substantially even vibro-treating condition over the surface area of the object.

Methods of vibro-treating and vibro-treating apparatus

A method for determining a machining result during surface machining of components, has the following method steps of: providing a component, applying at least one device, which changes under pressure, to the component, machining the surface of the component provided with the at least one device, evaluating the machining operation on the basis of the change in the at least one device as a result of the surface machining of the component. At least one device is in the form of a film which changes at least one property during the surface machining of the component.

Method for determining a machining result during surface machining of components

In sealing rings for a labyrinth seal that are arranged on a rotationally symmetrical component and in frictional contact with a stationary run-in layer, a part of the sealing ring () that contacts the run-in layer is in the form of a wear protection ring segment () that is built up on a truncated sealing ring () and which includes a metal matrix () with wear protection particles () embedded therein. The manufacture of the wear protection ring segment is carried out by laser build-up welding, wherein the proportion of wear protection particles contained in the metal powder flow supplied to the laser beam can be controlled and increased in an edge or tip region of the sealing ring.

Sealing rings for a labyrinth seal

With a method for the repair of compressor rotors designed in blisk technology the damaged stage is severed from the rotor, and a new blisk is joined to the rotor by electron-beam welding. For stress relieving the rotor is subjected to local thermal treatment by means of a current produced in the weld area by electro-magnetic induction.

Method for the repair of a compressor rotor designed in blisk technology

A method and an apparatus for repairing gas-turbine blisks uses an endoscopeprovided with processing optics featuring a flexible light guide arrangement. A laser sourceis connected to a flexible optical fiber arrangement, with a filler material feederfor supplying welding flux via a flexible line, with a water supplyconnected to a flexible line, and with an inert gas supplyconnected to a flexible linefor supplying inert gas, with the flexible lines, the flexible light guide arrangementand the flexible optical fiber arrangementbeing combined to form a flexible long repair implementat least at its distal end areas.

Method and apparatus for the repair of gas-turbine blisks

The invention relates to a product ( ), particularly a gas turbine blade that can be exposed to a hot aggressive gas ( ). The product ( ) has a metallic basic body ( ), which is provided with a thermal barrier coating ( ) having a spinel of the composition AB O .

Product, especially a gas turbine component, with a ceramic heat insulating layer

An article that is particularly well suited for use as a gas turbine engine component has a metallic substrate and a ceramic thermal barrier layer including a mixed metal oxide system comprising a compound selected from the group consisting of (i) a lanthanum aluminate and (ii) a calcium zirconate, the calcium in which is partially replaced by at least one calcium-substitute element, such as strontium (Sr) or barium (Ba). In addition, the lanthanum in the lanthanum aluminate can be partially replaced by a lanthanum-substitute element from the lanthanide group, particularly gadolinium (Gd). A process for producing such an article comprises providing a pre-reacted mixed metal oxide system as described above and applying it to the substrate by plasma spraying or an evaporation coating process.

Process for producing a ceramic thermal barrier layer for gas turbine engine component

Ceramic thermal barrier layer for gas turbine engine component

Growing community of inventors

Wehrheim, Germany

Thomas Haubold