초록 ▼

The present invention discloses a method for repairing metal edges using wire and a braze alloy. Using this method, it is possible to restore a damaged metal edge to blueprint dimensions. In the preferred embodiment, the disclosed method relates to the restoration of damaged or worn turbine vanes. T

The present invention discloses a method for repairing metal edges using wire and a braze alloy. Using this method, it is possible to restore a damaged metal edge to blueprint dimensions. In the preferred embodiment, the disclosed method relates to the restoration of damaged or worn turbine vanes. The method comprises a preparation step of cleaning and milling the edge of the base metal to be repaired. A repair wire is then placed along the edge, and a braze compound is applied to the junction of the base metal and the repair wire. A brazing step follows which integrates the base metal, the wire and the brazing compound. After standard finishing steps, the repaired vane meets blueprint specifications and is ready for use in a turbine.

대표청구항 ▼

A method for repairing a trailing edge of a damaged jet engine turbine vane comprising the steps of: (a) cleaning said vane, including removing coatings, so as to expose a base metal of said vane, (b) milling said trailing edge of said vane to be repaired to form a milled edge having a suitable seat

A method for repairing a trailing edge of a damaged jet engine turbine vane comprising the steps of: (a) cleaning said vane, including removing coatings, so as to expose a base metal of said vane, (b) milling said trailing edge of said vane to be repaired to form a milled edge having a suitable seat for accepting a length of wire of comparable length to that of said milled edge; positioning said length of wire against said milled edge to form a mated area, wherein said length of wire is of sufficient diameter to act as a dam or support for a brazing compound; (d) tack welding said length of wire to said milled edge; (e) cleaning said vane; (f) applying sufficient amount of said brazing compound along substantially the entire length of said vane adjacent said length of wire to cover at least a portion of said length of wire, said vane and said mated area to exceed desired dimensions; (g) vacuum furnace brazing said vane treated in accordance with preceding steps (a) through (f); (h) performing a diffusion cycle; and (i) refinishing said vane to obtain predetermined dimensions.