| 摘要 |
Methods for restoring and/or remanufacturing defective, worn, and/or damaged gas turbine engine components including turbine and compressor blades and vanes, blade outer air seals, and transition duct parts are provided. A method for forming or remanufacturing a component to have an internal space(50) comprises the steps of; forming, in situ, a refractory metal-based blocking element of which at least a portion is positioned within the internal space, and which includes an at least partial melting; adding a material to the component, wherein the blocking element at least partially blocks inflow of the material into the internal space; and removing the blocking element. The forming step comprises the steps of: inserting a pre-formed first part(52) of the blocking element; and forming, in situ, a second part of the blocking element. The second part forming step comprises: at least one of applying a wire, tape, powder, or paste; and the at least partial melting of the wire, tape, powder, or paste. The forming step comprises the steps of: forming the first part including at least one of cutting, stamping, and casting; and forming the second part from a binder and a powder containing at least one refractory metal. |
