Process for preparing turbine blades or vanes for a subsequent treatment, and associated turbine blade or vane
AssigneeSiemens Aktiengesellschaft
InventorsHalis Bozdogan, Francis-Jurjen Ladru, Jean Müller, Helge Reymann, Manuel Schusch
Life of this patent
Estimating the term…
Abstract
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.
Claims18
A method of treating a turbine blade, comprising:
- providing the turbine blade having an endplate with a peripheral surface;
- placing a covering strip on the peripheral surface using a plug connection to at least partially cover the peripheral surface;
- providing the plug connection by a groove formed into the peripheral surfaces;
- plugging a plug-in limb of the covering strip into the groove;
- coating the turbine blade with a material comprising metal or metal alloy or ceramic;
- removing coating material from regions of the peripheral surface which are not covered by the covering strip;
- and
- removing the covering strip from the turbine blade.
A turbine blade, comprising:
- an airfoil having an endplate with a hot-gas side facing the airfoil and adjoining peripheral surfaces;
- and
- a plug-connection recess arranged on at least one of the peripheral surfaces,
- wherein the at least one peripheral surface has a step in a region of the plug-connection recess, and
- wherein the step projects outward on a side of the plug-connection recess, the side being remote from the airfoil or facing the airfoil.
A turbine blade, comprising:
- an airfoil having an endplate with a hot-gas side facing the airfoil and adjoining peripheral surfaces;
- and
- a plug-connection projection arranged on at least one of the peripheral surface,
- wherein the at least one peripheral surface has a step in a region of the plug-connection projection, and
- wherein the step projects outward on a side of the plug-connection projection, the side being remote from the airfoil or facing the airfoil.
Dependencies are inferred from the claim text.