Patent ID: 6901758

Claim:
A method for repairing a damaged edge portion of a metal air-cooled combustor liner segment, the edge portion disposed and connected between a segment radially inner surface and a segment radially outer surface spaced apart from and opposed to the segment radially inner surface, the segment radially outer surface including a plurality of spaced apart radially outwardly extending heat exchange first protuberances integral with and across the segment radially outer surface including into the damaged edge portion, the first protuberances including spaces therebetween designed to provide cooling air flow control about the first protuberances, comprising the steps of: removing the damaged edge portion, including the first protuberances integral therewith, to provide a segment body having a body repair surface from which the damaged edge portion was removed, the body repair surface having a first shape; providing a metal replacement edge member including a replacement edge member repair surface of a second shape that matches the first shape of the body repair surface, a replacement edge member radially outer surface, a replacement edge member radially inner surface and a plurality of spaced apart radially outwardly extending heat exchange second protuberances integral with and across the replacement member radially outer surface to replace the first protuberances integral with the damaged edge portion; disposing the body repair surface and the replacement edge member repair surface in juxtaposition at a matched junction therebetween with their respective radially outer surfaces substantially coextensive; and, bonding the replacement edge member and the segment body at the matched junction substantially without change in the cooling air flow control about the first and second protuberances.