Siemens Aktiengesellschaft

Chromalloy Gas Turbine Corporation

Francis-Jurjen Ladru

Helge Reymann

Bernhard Siebert

Ralf Motzkus

Thomas Beck

Torsten Melzer-Jokisch

Knut Halberstadt

Dimitrios Thomaidis

Andrea Massa

Andrea Bolz

Sascha Martin Kyeck

Jean Müller

Gerhard Reich

Stefan Werner Kiliani

Thomas Berndt

Andreas Oppert

Heiko Gruner

Mario Felkel

Marco Reinger

Halis Bozdogan

Manuel Schusch

Benjamin Lippke

Marcus Mensing

Wolfgang Dorn

Mahinda Wanigasinghe

During the coating of a component including cooling-air holes, it is necessary, when remachining the coated cooling-air holes, to determine the correct alignment of the cooling-air row. A process is provided in that at least two cooling-air holes are kept clear by a masking material during the coating and the alignment of the cooling-air row is effected on the basis of these two unclosed cooling-air hole.

Process for coating a component having partially closed holes and process for opening the holes

A process for coating an edge within a hole in a coated component is provided. The hole is a cooling-air hole operable conduct a coolant therethrough. According to the processes, an outer coating is provided on the outer surface of the component. An inner coating is provided on an inner surface within the hole, wherein the inner coating within the hole takes place using a coating nozzle at a different angle to the coating of the outer surface around the hole, if the spray angles for the outer coating and inner coating relate to the outer surface.

Setting the quantity of cooling air for a turbine blade or vane by controlled overspray

A test component coated with a coating system is provided. In at least one defined region of the test component, there is a delamination having defined properties deliberately introduced into the coating system. The test component may be employed in a method for testing a thermography apparatus that is designed for carrying out a thermography method, for its correct operation with a view to the detection of delaminations. In order to test the thermography apparatus, the at least one defined delamination of the coating system is detected on the test component by using the thermography method employed in the thermography apparatus.

Method for testing a thermography apparatus, designed for carrying out a thermography method, for its correct operation, test component therefor and method for its production

A plasma spray nozzle is provided. Owing to their high degree of wear, previous plasma spray nozzles were not suitable for the coating of components for which long coating times were necessary. The coating times may be reduced considerably by the triple injection of powder into the inner channel through the plasma spray nozzle.

Plasma spray nozzle with internal injection

Conventional welding methods have the disadvantage of producing worse welded joints at the beginning of the process than in the later course of the method. The method in question uses an initializing plate on which the welding process is begun and then once a consistent quality can be achieved for the welded joint continues onto the points for repair.

Welding method and welding device

A method for optimizing the coating of a component using a coupon by introducing the coupon into a depression of the component, in which the geometry of the component is not altered as compared to a component without a coupon, is provided. A component having a depression into which a coupon is fastened is also provided.

Coating optimization process using a coupon and component comprising a coupon

Process for preparing turbine blades or vanes for a subsequent treatment, for example the application of a coating and/or a material-removing operation, wherein the turbine blade or vane has an airfoil, which is delimited at at least one end by an endplate with peripheral surfaces, wherein at least one of the peripheral surfaces is at least partially covered prior to the treatment of the turbine blade or vane. In the process a covering strip is fitted onto at least one peripheral surface to form a plug connection.

Process for preparing turbine blades or vanes for a subsequent treatment, and associated turbine blade or vane

The invention relates to a method of preparing turbine blades for spray coating their blade region that is subjected to the medium flowing through during operation in a spray coating apparatus, in which the turbine blade is inserted with its blade root into a cavity of a mounting in such a way that it protrudes with the blade region that adjoins the blade root from an opening of the cavity to form a gap between the rim of the opening and the turbine blade, and in which the gap is bridged by a shielding fixed on the mounting, which is characterized in that a shielding layer of a plastic which is resistant during the spray coating is used for the shielding, the shielding layer being arranged in such a way that it reaches up to the boundary between the blade root and the blade region.

Method of preparing turbine blades for spray coating and mounting for fixing such a turbine blade

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Berlin, Germany

Francis-Jurjen Ladru